ATVs - Popular Questions, Answers, Tips & Manuals


coil maybe bad. lots of reasons here
cdi maybe bad i would try boot on spark plug wire first screws off and back on with new one

Polaris ATV | 465 views | 0 helpful votes


sounds like its running rich. check your float height and then lower your main jet needle a notch

Polaris ATV | 214 views | 0 helpful votes


if its a black smoke its running rich. check your air filter and air tube for clogs. something may have made a nest in there.

Polaris ATV | 250 views | 0 helpful votes


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Polaris ATV | 168 views | 0 helpful votes


of course the ebay item could be junk .

Polaris ATV | 479 views | 0 helpful votes


bad ground be my guess loose wire ?

kawasaki 2005... | 230 views | 0 helpful votes


Disconnect it.

Yamaha 2008... | 173 views | 0 helpful votes


My 400 has a brake switch interlock. Don't forget to check that function.

Polaris ATV | 137 views | 0 helpful votes


Does it die as you twist the throttle or after riding it a short distance? I know its seems a silly suggestion but are you turning the petcock in the correct direction? Try the twister in all of the setting positions and see if a different one fixes the problem. Keep in mind if it dies on a throttle twist it might not be fuel causing the problem.

RTO Quads 125cc... | 238 views | 0 helpful votes


make sure your ground wire is making good connection cannot be any paint between wire and frame ground. good luck

Yamaha 2004... | 62 views | 0 helpful votes


belt drive or chain drive? belt loose, chain shear pin bad ? gears stripped? several reasons here ! hard to say w/o more info sorry!

Honda 2004... | 58 views | 0 helpful votes


I'd guess bad wiring from the regulator. mine regulator burned up and I had to run a new wire from it to the battery.

Suzuki 2005... | 115 views | 0 helpful votes


Use heavy duty SAE 80W-90 gear oil

Engine oil does work but the oil will not last as long nor will it protect the bearing's/gear's as well as gear oil. Thick dif oil can work to.
Also the gear box is should be sealed.

Yamaha 2004... | 162 views | 0 helpful votes


prob needs a new thermostat

Polaris ATV | 91 views | 0 helpful votes


you nee to locate the battery wire on the starter then with a test light or meter put the probe on the post of the starter and it the start button, you should have 12 v at that point if so replace the starter, if not the check the solenoid

Polaris ATV | 67 views | 0 helpful votes


its running lean. not sure if thats a carb or fuel injection. you need to richen the idle somehow.

Honda 2005 TRX... | 34 views | 0 helpful votes


Replace coil.

ATVs | 54 views | 0 helpful votes


Follow the wires from the coil. They are on the top of the engine.

ATVs | 34 views | 1 helpful votes


Check the off/on switch...Might not be making a good connection or loose wire

ATVs | 34 views | 0 helpful votes


Check oil level capacity, to ensure in specs. Check spark plugs, ensure its clean and correct plug for your quad.the only other could be is ign coil breaking down when warm. Check fire at plug when this happens. First ensure oil level is correct. Make sure your electric fan is on when bike is warmed up.

ATVs | 62 views | 0 helpful votes

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