1 d
90 hp johnson outboard tachometer not working?
Follow
11
90 hp johnson outboard tachometer not working?
Is the RPM and hour (but the result is 0 while the motor is running) I have studied and tried to check the electric wires from miles to the con*****er and 10 pin cables from normal engines. There are many different factors and variables to this question! DRAG LINK -75 THRU 300 HP (E-TEC) DUAL STEERING CONNECTOR KIT ELECTRIC STARTER ELECTRICAL SYSTEM. To check for this, you must disconnect the Tachometer from the engine and take off the cover. The two tachometers should read within 10 percent of each other -- if the shop tachometer reads 1,000 rpm, … A faulty rectifier wouldn't damage the tachometer, the tachometer simply wouldn't work. Troubleshooting Tachometer At 800-1000 RPM, check output on the gray wire, reading should be at least 8 volts with a DVA meter. at wot it reads almost 6500rpm. There is a multi-function tachometer which is no longer working. HPQ: Get the latest HP stock price and detailed information including HPQ news, historical charts and realtime prices. The tach will periodically fall to 0 or read a slightly lower value with the needle trying to jump up to the correct value. Ask the experts on our Suzuki Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. Next -- your ear is not a measure (at least not a very accurate measure) of what 5500, 2000. You just have to grab a multimeter and check the power output on the battery terminals. This is a 4 cylinder model. Battery positive (+) connects to. Start from the back of the speedometer. A faulty rectifier wouldn't damage the tachometer, the tachometer simply wouldn't work. Crestliner, The tach runs off of three wires. And of course connect the grond wire to ground. This 90 horsepower Johnson outboard, manufactured in 1999, is a saltwater model. Revise Search: All Years > 1992 > 90 hp. I am about to replace this motor with an. I put a analog meter on my battery. Now, find the two (2) yellow wires leading from the stator to that terminal strip. Look for the rectifier. Sounds like it is running on only 3 cylinders. This 90 horsepower Johnson outboard, manufactured in 1998, is a saltwater model. The displacement for the pistons is 99 The bore for this outboard is 3. Mar 25, 2004 27,145 #3. Tachometer not working on Johnson 150. Johnson Evinrude Outboard Forum. Now, find the two (2) yellow wires leading from the stator to that terminal strip. Understanding the wiring diagram and color coding will help ensure a successful installation Power and Ground Wires: The tachometer requires a power source and ground connection to function. Sep 9, 2013 · Sep 9, 2013 Re: Mercury 115 outboard 2 stroke tach problem. Thanks for all replies in advance. The tach would not work so I ordered a new tach from Faria and installed. May 13, 2013 · Jul 24, 2009 107 #1. Aug 17, 2010 Re: johnson fast strike 150 problems. On the engine block there is a purple section to attach a lead wire. I'll be doing what Joe says today and see but the tach does work, just to high an RPM. I spent 800 last year getting the carbs rebuilt and due to issues with the VRO I have replaced it with just a fuel pump and mixing the oil with the gas. Installation. Are you experiencing issues with your HP scanner? One common problem that users encounter is outdated or missing drivers. Jul 31, 2007 · Jul 30, 2007 I just bought an older boat with and '85 model Johnson 90hp and my tachometer reads over 7,000 rpms at WOT which would have blown the motor. johnson v4 wiring diagram - Wiring Diagram 50 Hp Johnson Wiring Diagram - Wiring Diagram Pictures Wiring Schematic For Johnson Outboard. The pulser coil on the F115 provides AC voltage to the ECU. 12,532 #4. I am new to Johnson so I am lost. The motor runs and sounds perfect as it should. Thinking it was the. jasontd101 New member. Entire wiring at which console seems right. MY gps was down, so i didn't have a gps speed, but my speedometer said 35 mph, and. com web site and compare the control cables if im not mistaken the controls dont mean much, they will work on pretty much any motors as long as the cables can fit for johnson motors there are 2 types of cables pre-1979 and post 1979 im not sure whats the deal for mercury Read More Johnson Outboard Fuel Pump Problems: A Comprehensive Guide Honda 50 HP Outboard Problems: Troubleshooting Tips and Solutions. Check Details The battery was charging normally but tacho did not work. it doesn't sound bad at wot and considering it is pushing a. In today’s fast-paced world, productivity is key. Select a tachometer mounting location that is in full view of the operator (86mm) hole in the dashboard. Joined Mar 14, 2011 Messages 73. From the key switch to the tachometer via a fused harness. Thank you, Boscoe99. Speedometer 5 ~ 35 MPH Intended for pontoon applications. Start the motor, turn on the shop tachometer meter and run the motor up to 1,000 rpm on the shop tachometer. A faulty rectifier disables the charging system, and the tachometer simply doesn't register. ) To test individual warning lights and the alarm for either a tachometer or warning light gauge. The tachometer is a brand new gauge and after a little research, I replaced the regulator/rectifier, but still am left. No, other smaller outboards will not run with a bad stator. There is a work around technique to bypass the regulator assembly simply to get your tach working but I don't recommend it due to the fact that the regulator (if faulty) will fail completely, leaving you with a dead battery, and also cause voltages to back up in the stator assy (under the flywheel) which will cause a stator melt down, plus the. Sep 9, 2019 · I have a Merry Fisher 580 built in 1998 with a Yamaha 2 stroke 90hp outboard. The battery itself for the boat is fully charged and will turn the actual boat motor over with no trouble. Joe Reeves When installing a tachometer on your Johnson outboard motor, it is essential to correctly identify and connect the wires. Stator ohms correctly, Engine runs fine until battery voltage drop real low. Lookup 90 hp 1990 Johnson Evinrude parts by models and buy discount parts from our large online inventory. The purple wire is connected to the ignition switch accessory wiring "A" and should supply 12 volts when the ignition switch is turned on. Idle is adjusted by moving the LOW tab on the bracket that holds the optical sensor. When cranking or running needle doesn't move off of zero. I'll be doing what Joe says today and see but the tach does work, just to high an RPM. I turn the key to run and the needle zeros. POWER TILT TRIM Electric Motor Differences - by Joe Reeves. If you’re using an HP laptop, there’s a chance someone else can see everything you type. I turn the key to run and the needle zeros. i ckecked the back of the tach and. Thanks for all replies in advance. Motors built prior to that date require a 32/1 ratio, with the exception of a few fishing motors built prior. THe water pump seems to be working fine. If you have the original control box for 1973, the grey tach wire is capped off inside it. In my case, the tach worked fine. integrated math 2 answers Johnson & Evinrude Outboards. com FREE DELIVERY possible on eligible purchases. The wiring Iooks ok ( all the wires from the outboard are aligned with the tachometer wires with colours matching) but I am struggling to troubleshoot as I do not have any manual. The piston displacement is 99 The bore and stroke are 358" respectively. It can be the tachometer itself or the Alternator. Tach lights up and sets to zero but not rises. Jun 22, 2011 · Check the resistance from each of the yellow wires to case ground, you should have a high reading, typically in the M range. Turn this screw back and forth several times stopping exactly on 6P (close don't count). Problem: No RPM on the tachometer. The tach does not work at all. My motor is a 1997 Johnson 115 SPL 2 stroke. Where should I start troubleshooting? Thanks in advance. The tach is hooked up to +12VDC, Ground and one of the signal sources listed above. Tachometer not working. The displacement for the pistons is 105 The bore for this outboard is 3. previous owner may have disconnected something to stop reading engine hours perhaps. Big Jon Honda 5hp Outboard Shop Outboards View All; Fishing Boat Seats. Check the outboard's charging system if no signal is detected. This is the tach signal wire. I would love to get my tach to work Thank you. I am getting the low oil and no oil warning lights, along with the warning horn that will sound after 30 seconds to a minute after running and will sound for around 15 seconds (seems like an hour with other boats. So, if you're not getting the desired response from the. 1mf, 100 volt non-polarized capacitor between the signal and ground stud terminals Faria Beede no longer makes a 20 pole tach. The two tachometers should read within 10 percent of each other -- if the shop tachometer reads 1,000 rpm. tired at work gif There are two expansion screws under the instrument panel. Messages Jun 30, 2009 1988 225 Johnson outboard TACH & CHARGING ISSUE For 8-10 years my tach would suddenly stop working (zero RPMs) and at the same time the motor would stop charging (voltage would show 12-12 I continue to run it and the voltage would continue to drop (I have a second battery that is disconnected, so I was. Smj. May 19, 2023 My tach is not working on this motor. T replaced the voltage rect and still have the same problem. I equitable got my boat back from the shop and the new tachometer they installed doesn't register at all when motor fires up. Johnson Evinrude Outboard Forum. it doesn't sound bad at wot and considering it is pushing a. " I sent a message about a 1991 200 HP Johnson GT outboard, and I'm not sure if it posted. I put a analog meter on my battery. But you might start there. Thread starter jasontd101; Start date Apr 21, 2017; J. Apr 22, 2017 #1 This is my first post on the forums and appreciate any help anyone can provide Simply multiply by 1,000 to get the actual number of RPM. 40 HP ELECTRIC SHIFT 1967-1968. My tachometer now does not work Have not had a chance to check my tach setting being it is a pontoon boat with an enclosed console and little harder to get to. Once under load it bogs down terribly. If you don't know the number, consult the outboard tachometer application chart. Install one with too much pitch and it will not be able to reach the max recommended WOT rpm. Start Over Different Model > Different Engine Section > Tachometer. System lights come on and the … The setting has to do with the pulses per revolution The paper that comes with it tells you how to set the pulse/rev correctly for most engine make, model, … If the new tach works properly and the old tach didn't, obviously the old tach is faulty but usually boaters don't carry around a spare tach (see below). Pull it off the back of the speedometer. Tried another teleflex tach still not working. Advertisement For many people, Packard. Chrysler outboard parts Evinrude outboard parts Force outboard parts Honda outboard parts Johnson outboard parts Mariner outboard parts Mercury outboard parts Suzuki outboard parts Tohatsu outboard parts Yamaha outboard parts Tach was working fine and then it cut out. bunz 4eva A couple of possibilities that come to mind are 1: The key for the impeller fell out or became displaced during install. Tach / RPM gauge isn't working. Check Details The battery was charging normally but tacho did not work. when I put my key in, tacho shows 0 rpm (in both on and off position) but as soon as the engine starts, it jumps to over 7000-rpm and stays there. Thread starter sutor623; Start date Jan 10, 2013; sutor623 Rear Admiral. How to Test and Troubleshoot a Boat Tachometer Perform Initial Assessments and Diagnostics Locate the Tachometer's Signal Source Then Check the Signal Voltage Inspect the Tach's Wiring Step 1: Locate the tiny hole on the leading edge of your lower unit. 07-28-2016, 09:57 AM. Mar 10, 2015 · Mar 10, 2015 I just bought a Faria universal aftermarket analog Tach for about $50 new on Amazon for my 1989 Johnson 70. The neutral switch part number is (NNN) NNN-NNNNand is mounted on s bracket inside engine cowling on shift linkage. The boat tachometer is an essential part of your boat engine. Stator ohms correctly, Engine runs fine until battery voltage drop real low. The rest of the lights below the tach … This "How-To" Video will demonstrate the step by step process of installing a Tach / Hour Meter on an outboard marine motor. This winter I found an old trim/tilt unit that I rebuilt and installed and I finally got everything working exept for the trim meter. I turn the key to run and the needle zeros. Once you have removed the cover, inspect the belt for any signs of damage or wear. The pulser coil on the F115 provides AC voltage to the ECU. I turn the key to run and the needle zeros. Start the engine and check the tachometers operation, and if the tachometer operates as it should, then the regulator/rectifier is faulty and will require replacing. He pulled a johnson 60hp and replaced with yamaha 90hp. Wiring Harness for 1979 Johnson 70HP Tachometer The gray wire is the tach "pulse", the purple wire power when the ignition is on, and the black wire is ground Mariner 90 hp (3 cyl Buy a genuine Mercury Quicksilver or aftermarket part. This is a 4 cylinder model. I read in this forum somewhere that you can lift the powerpack, remove the grey tach sender wire from its standard connection and attach it to the the yellow-red wire on the connections.
Post Opinion
Like
What Girls & Guys Said
Opinion
59Opinion
These include a multimeter, wire strippers, crimping tool, electrical tape, zip ties, and a wiring diagram specific to your Mercury engine model. Around same time I noticed the volt meter is only reading 10 amps Mar 28, 2007 Re: Evinrude 90 Regulator / Rectifier Tach Circuit Question The VRO sensor compares the tach signal with pulses from the oil/fuel pump piston (driven by crankcase pressure/vacuum) to make sure the VRO is operating OK. Does any forumite know this engine and how to go about tracing this fault? I may be wrong but I think the signals come from the engine management unit which is working OK as it shows all the right indicator lamps in sequence so voltages are getting to the tachometer dial. Two weeks ago while on the water, my tach went from working normal (6k rpm @ WOT) to pegging out (8k rpm) at WOT and just acting funny. GLS Stock #: 1005835-BF36395 Wishlist. Use 1 cup of outboard motor oil for every 3 gallons of. The Tachometer is not working and the Engine guardian straetgy reduces engine to 90 % of the power (according to the manual). This 2004, 90 hp Johnson is made for saltwater. The tachometer has stopped working on my evinrude e-tec 90. Hook those three wires up and see what happens. I just bought the boat and engine. Use a screw driver and turn the dial back and forth a few times, put it back where it was before you started, and test it again. The tach would not work so I ordered a new tach from Faria and installed. i just put a teleflex tach on my boat and it seems to read too high of rpm. buy the pigtail and run it to your tach e. I am getting 5000 rpm on WOT and 35 mph on a 17' CC with the 90 HP Johnson. Haptoglobin is a protein that binds with a type of hemoglobin that's made when red blood cells are damaged The Insider Trading Activity of JOHNSON WESLEY on Markets Insider. rule 34 destroy all humans Outboard Model Tachometer Setting; 40-90 HP: 6 Pulse or 12 Pole: I-Command Set up. MarineEngine. See details Johnson/Evinrude, OMC. Thread starter marcusknight; Start date Jun 11, 2013. Key on, engine off: DC reading ~290 mV. outboards and some pre 2001 Mercury 90HP outboards may require wiring a. CDI Electronics | Outboard Motor Parts | Ignitions | Marine Engine. it doesn't sound bad at wot and considering it is pushing a. I have a 1992 Johnson 115 hp two-stroke outboard motor. This is due to the fact that the tachometer operates off of the charging system and the rectifier converts AC voltage to DC voltage, enabling the charging system. a tachometer operates off of the charging system. Oct 23, 2013 · Hi I have a 1999 Johnson 90 hp. Revise Search: All Years > 1985 > 90 hp. That's how the Merc did it with their early 16 amp system to prevent over charging. 5 inches and the stroke is 2 This engine has power steering and a electric-type starter. Outboard boat motors with two cycles manufactured by Johnson and Evinrude after 1964 require a 2 percent fuel to oil mixture. Johnson & Evinrude Outboards. He pulled a johnson 60hp and replaced with yamaha 90hp. There is continuity with the grey wire between the motor and tach. yuba sutter craigslist atvs for sale by owner Go (800) 209-9624 M-F 9-5 ET (800) 209-9624 M-F 9-5 ET Johnson outboard manuals ; Mariner outboard manuals ; Mercury outboard manuals ; Nissan outboard manuals ; Suzuki outboard manuals ; Jun 9, 2012 Tryin to get my tach back in working order before i replace the prop and change size. 1mf, 100 volt non-polarized capacitor between the signal and ground stud terminals Faria Beede no longer makes a 20 pole tach. Black Wire: Ground lead for the tachometer. The company recently confirmed that a keylogger was installed on hundreds of its laptops af. If the new tach works properly and the old tach didn't, obviously the old tach is faulty but usually boaters don't carry around a spare tach (see below). 1992 Johnson 60 Hp Outboard. Sep 5, 2013 · Messages Sep 6, 2013 Re: Yamaha analogue tachometer wiring. On the BAT wire I get 5 volts and I get nothing on the SIG wire I also get 12 volts on the light wire My boat is a Yamaha Exciter 135 Jet Boat. I suspect that's the case. Hopefully one of them is either yellow/gray or is connected to a yellow/gray wire at the terminal strip. The purple wire is connected to the ignition switch accessory wiring "A" and should supply 12 volts when the ignition switch is turned on. Battery negative (-) connects to the black wire…. Go (800) 209-9624 M-F 9-5 ET (800). Aug 5, 2014 At my sis-in-law's house on a lake. V-4 85 HP MOTORS 1969-70 w/Alternator. 5 then let … One common problem that can cause a Yamaha Outboard Tachometer to stop working is worn or damaged electrical wiring connected to the Tachometer. On the other side of that plug is a: Purple Wire: 12v supply for the tachometer. May 20, 2009 Re: Installing a tachometer on an old Evinrude. At 17 volts it looks like your voltmeter is incorrect or the voltage regulator has a problem. after it starts and warms up it runs fine until it sits a while. Step 2: Identifying the Tachometer Wires. J90PL4SR. com 184 Jones Drive Brandon, VT 05733 USA (800) 209-9624 (802) 247-4700 (802) 419-3055 Fax Johnson & Evinrude Outboards. This 90 hp Johnson is in very good running condition and is complete and ready to install. retargeter You will need to find a tach with a 5 Pulse or 10 Pole setting, I don't know of any other outboard that uses that setting so you will need a Evinrude, Johnson or an aftermarket tach Boats Johnson Outboard Parts Member. V-4 85 HP MOTORS 1969-70 w/Alternator. AC reading 0 V (naturally) Engine idling, Yamaha tach reading "7" : DC reading 13 AC reading unstable, "bouncing" from ~4 Hz reading unstable ranging ~75 -82. The only thing available is the premix pump part # 5007422 which is about $30 cheaper than a stock VRO pump which is around $400 B. The engine runs fine all day at half to two thirds throttle, but when I progress to full throttle, the alarm sounds after about 5 seconds The Tachometer is not working and the Engine guardian straetgy reduces engine to 90 % of the power (according to. How to install a Tach. Thread starter Sylvan; Start date May 24, 2010; S 12,532 #4. tachometer not working i have a faria tach on my pontoon boat which has a 1998 50 hp johnson out board motor on it. That's how … A faulty rectifier wouldn't damage the tachometer, the tachometer simply wouldn't work. You have to look on Faria's chart to see what pole alternators each of your motors (Yamaha and Johnson. Symptoms of a low battery are that it simply will not crank the engine fast enough to have the stator engage the ignition properly. Engine instrument wiring doesn't need to be complicated. When cranking or running needle doesn't move off of zero. 5 then let boat run and it went. On your motor it is likely purple. tach question - tach not working - 1998 90 hp oceanpro tach question - tach not working - 1998 90 hp oceanpro. boscoe99 said: Yellow is for 12 volt positive, black is for the ground and green is for the tachometer signal. through 2005 A System Monitor Tach or 2" gauge is required.
He pulled a johnson 60hp and replaced with yamaha 90hp. 40 HP ELECTRIC SHIFT 1967-1968. I bought a 2005 seaboss and it has a 2004 or 05 90 hp 2 stroke saltwater edition motor and the tach is stuck on 4200 rpms Johnson & Evinrude Outboards. Johnson Evinrude Outboard Forum. strike imdb The lights will not turn off, not sure about the horn as I disconnected that Year 2000 70 HP Johnson, not certain how I forgot that bdmurphy75 Cadet. Messages Dec 23, 2008 Re: 1985 90hp Johnson wiring diagram. 49 (14 used & new offers) 85mm 6000RPM Marine Tachometer Outboard Boat RPM Tachometer for Auto Motorcycle Marine Yacht Vehicle with Backlight Hour Meter Car Tacho Gauge 9-32V1 out of 5 stars $31 99 A System Check Tach or 2" gauge is required9 HP & 15 HP (2 cylinder) (4 stroke) 25-35 HP 3 CYL 40-50 HP, 2 cylinder (1993 & later) 60 HP, 3 cylinder (1985 & later) 70 HP & greater, including sea drives All FICHT models Suzuki. 3: there is a blockage in the powerhead. Feb 6, 2013 · Got a 18' Kenner with a 2000 90 hp Johnson and the tach doesn't work , seen it work once (running in rough water). Remove the trim panel by hand from the front and middle of the trim panel. it doesn't sound bad at wot and considering it is pushing a. humboldt craigslist Sep 6, 2006 · 12,532 #4. The vast majority of recreational boats in service today are still using analogue instrumentation systems. Aug 5, 2014 At my sis-in-law's house on a lake. That is because the signal is generally shorted to ground. luggage sale walmart Wiring outboard evinrude switch ignition bf115 gauge nitro mainetreasurechest omc mastertech tilt outboards 1989 hubs tachometer 200hp seç pano mountNissan wiring diagram 1400 [diagram] nissan 28185 wiring diagram[diagram] free 86 nissan engine wiring diagrams. This is due to the fact that the tachometer operates off of the charging system and the … I just bought an older boat with and '85 model Johnson 90hp and my tachometer reads over 7,000 rpms at WOT which would have blown the motor. Aside from the multimeter readings, you will also get fluctuating readings on a tachometer. OUTBOARD Fuel Pump With Gasket for Johnson EVINRUDE 25hp 35hp 1976-1988 19899 out of 5 stars based on 22 90. 07-18-2014, 06:23 AM. Whether you’re a student, a professional, or someone who works from home, having the right tools to maximize your efficiency is es.
If you are using a 40-amp output stator, there will be a large load put on the regulator. Model E90TLCEM; Model J90TLAEM; Lookup 90 hp 1992 Johnson Evinrude parts by models and buy discount parts from our large online inventory important_devices: Order online, get free downloads*. My tachometer would randomly function some of the time Aug 29, 2016 · OK. Try to blow air through the hose to clear it. Mar 25, 2004 27,145 #3. This 2004, 90 hp Johnson is made for saltwater. This is a symptom of the tachometer being out of calibration, which usually doesn't occur unless something is changed. Member #1. When you turn off the ignition the needle doesn't have to drop to zero. On the other side of that plug is a: Purple Wire: 12v supply for the tachometer. This is my first post on the forums and appreciate any help anyone can provide. Joined Jul 30, 2007 4 #1. need color code of wires schematics I have a 2000 jOHNSON 90 hp on a Javilin boat. Re: tachometer problem-1995 evinrude 88 spl. Is it as simple as connecting that electrical port to the tach, and then the. after it starts and warms up it runs fine until it sits a while. The lead to the tach for signal will be the gray wire. Tried another teleflex tach still not working. skipthegamesjoplin Don't know if the 25 HP has a charging circuit. He pulled a johnson 60hp and replaced with yamaha 90hp. This outboard engine weighs approximately 319 pounds The pistons have a 105 The bore width is 3. Messages Jun 17, 2009 Re: 1997 Johnson 90 hp overcharging It's pretty normal to see high volt readings on the battery terminals after the engine has run for a while. Once you have removed the cover, inspect the belt for any signs of damage or wear. Lead wire, mounting hardware and instructions. Once disconnected, use a jumper wire to apply 12 volts DC directly to the appropriate wire. The duplicates on the Tach monitor are for powering ( gray ) and Grounding ( black ) other gauges you may have. Stator ohms correctly, Engine runs fine until battery voltage drop real low. Thread starter Marlon Galviz; Start date Jun 22, 2016; M. Remove that gray wire that leads to the tachometer. So the VRO is receiving the signal on the gray wire not producing it. There is a multi-function tachometer which is no longer working. Find 1990 90 hp Johnson Evinrude Outboard Motor Parts by Model Number. Please be a little more specific. haven't checked the voltage though. nc locanto Johnson evinrude 90 outboard engine harness 1991 tachometer omc stroke charging cb750 manual rectifier repair schematics descargar Check Details Check Details. 3: there is a blockage in the powerhead. GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts. 40-50 HP with UFI Ignition. Thread starter sweetd; Start date Jan 25, 2010; S Jan 25, 2010 #1 "Hi Guys,. If so, connect the gray wire you removed previously to that yellow/gray terminal. When I did, the Tach was not working. wires a grey wire and a red wire connected. Sep 22, 2010 Re: 2000 90hp Johnson Won't Start after Hot. The duplicates on the Tach monitor are for powering ( gray ) and Grounding ( black ) other gauges you may have. A faulty rectifier wouldn't damage the tachometer, the tachometer simply wouldn't work. You are correct about the speedometer. If so, connect the gray wire you removed previously to that yellow/gray terminal. 6 inches and the stroke is 2 This engine has power steering and a electric-type starter Lookup 90 hp 1985 Johnson Evinrude parts by models and buy discount parts from our large online inventory important_devices: Order online, get free downloads*. Tach was working with old motor but will not work since I changed to this newer motor. Simply touching the battery with the cables in the reverse order or hooking up a battery charger backwards will blow the diodes in the rectifier assy immediately. That is because the signal is generally shorted to ground. Starts, runs well etc. Just recently, The tachometer is either fluctuating or not working at all and it appears that the motor is no longer charging the battery. The battery itself for the boat is fully charged and will turn the actual boat motor over with no trouble. Joined May 23, 2011 Messages 4,087 Battery not charging?? 70hp evinrude So, you checked the voltage when not running and running? Should slowly increase after it runs a few minutes. Engine Diagrams: Model Number. When cranking or running needle doesn't move off of zero. Jul 29, 2016 · 462 #2.