Question about 2006 Harley Davidson FLHR Road king

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Tachometer does not work where is senser on engine for it

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ECM gets its info from crank possition sensor. Under dash at speedo connector you,re looking for pink wire.

Posted on Feb 22, 2009

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Z1100 A1 kawasaki what causes tachometer not to work and engine misfire

either the tach wire is grounding out somewhere along the frame or the ign module is defective and overheating

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Tachometer Pegs all the way to Max, Backfires constantly

you need a fully charged battery to run properly tach is either wired wrong or its toast non reairable

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What are standard settings for idle and air mixture screws

The idle speed will be dependent on model, particularly if 4- or 2-cycle, 2, 4, 6 cylinders, etc. If your engine uses carburetors, I'd say no less than 600 RPM, maybe up to 850 RPM at idle. If your engine is fuel injected, the computer should set the idle speed and air mixture for you (if it's functioning correctly), and a big twin could idle as high as 1150 RPM .

Your Idle air mixture settings are important for proper idle. A good approach is to let the engine tell you what it likes. For this method you will need either a tachometer or a vacuum gauge. Here are some steps to guide you.

1) If the engine will start and run, go from there. If not, a good initial setting is to turn the idle screw(s) all the way in (GENTLY--don't break the seats!), then back them out about 1 1/2 to 2 1/2 turns.
2) Attach either your tachometer or vacuum gauge to your engine. Tach is connected to the ignition system (usually at the coil); vacuum gauge would be connected to a manifold vacuum port. (The bike's built-in tach MAY work for this, but they are often not graduated finely enough.)
3) If using a tachometer, warm up the engine. Working on only one idle mixture screw at a time, begin turning it IN until RPM begins to decrease. Then back the screw OUT again until you achieve maximum RPM on that screw. Feel free to "play," turning the screw in and out until you achieve highest RPM at at minimum turn-out (if you leave it turned out too far, bike will run rich and foul spark plugs; if not far enough, bike will run lean and hot). Now do the other idle mixture screws the same way. Finally, go back and do all the mixture screws again (and again and again, if necessary) until all throttle bores are synchronized.
4) If using a vacuum gauge, engine temp is not as critical, but go ahead and warm it up anyway. Similarly to the tachometer method, turn the mixture screws in until RPM drops, then out until max vacuum reading at minimum turn-out. If you have multiple mixture screws, do the same on each, then repeat on all screws until you feel they are all synchronized.
5) Throughout the process of adjusting idle air mixture screws, you will probably have to adjust the idle screws to keep the engine in the RPM range you want it to idle. (If adjusting air mixture screws has no effect on the engine idle, the minimum requirement is probably a carburetor rebuild.)
6) Have fun getting to know what your engine "likes!"

Oct 14, 2014 | Motorcycles

1 Answer

Honda NSR150SP Tachometer Doesn't Work

The first thing that I would check are the fuses. I believe that the fuses are located behind the right side engine cover. Check your owner's manual for fuse box and tachometer and instrument ligt fuse location(s).

Feb 05, 2014 | Honda Motorcycles

1 Answer

Tdm 900 fan wont start

disconnect fan wires and test it with 2 wires and a battery , if it dont work then replace fan ! test the fan senser with multi metre with engine running up to temp and see if it works also first !

Dec 09, 2013 | 2002 Yamaha TDM 900

1 Answer

CPI gtr 50 tachometer

Hi, Anonymous sorry you can't find the first and best tool you ever bought for your CPI despair not for a mere $0 you can download another one. For more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
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Tachometer doesn work
CPI Scooter Parts Racing Planet USA
CPI GTR 50 2011

Dec 27, 2012 | 2011 Cpi GTR 50

1 Answer

How ti install a tachometer

It depends on the tachometer. Some tachometers operate off the ignition unit and others get their trigger from the coil. Also, since a Harley fires both plugs at the same time and every time the pistons come to top center. Therefore, the tachometer must be set up for this, just like for a two stroke engine or you'll get a erronous reading. Any tachometer that you buy should have wiring instructions with it.

I hope this helps
Good Luck

Jul 29, 2010 | 2000 Harley Davidson FXST Softail Standard

1 Answer


Most of the time ABS problems are with sensers but which one? The master cylinder has a fluid level that sticks low evewn if theres enought fluid so makw sure it flates up in the fluild if the light stays on them check the wires and the plugs that plug in the wheel speed sensers as the sensers seldom fail but the wires abd plugs get into troble. Follow the wires from the sensers to the ABS controller and reconnect them and inspect all the covering and wires for troble. Most two wire sensers will have some continuity with an OHM meter but it will be high. If you meter has wave form then put in on one wire to ground with everything connected and turn the wheel and you should see pulse and its a yes or no answer. If the wires and the sensers check out and the levels senser can be proven to work you best let someone with access to the Yamaha dianostic equipment to look at it. Rember that an open brake line or an unbleed brake line will also make the light come on.. Unplug the ABS controller only with the key off and the battery unhooked as these parts are easlily damaged by spickes in power or a low or bad battery. Once all inspections are made and the battery connections cleaned and reconnecdted try again as you may have cleaned something up and it's making now and the system may work just fine

Sep 10, 2009 | Yamaha FJ 1100 Motorcycles

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