ATVs - Answered Questions & Fixed Issues

severe knock / rattle under load
excessive smoke as the crack normally occurs at the oil ring groove dropping that ring into the sump
describe the symptoms that you have as if it is a rattle under acceleration that will be detonation and is a air/fuel mixture problem or ignition timing too far advanced the skirt is what maintains the alignment of the piston crown so if it is cracked /broken off you will have no doubt of the noise at idle and at rpms
pistons seldom fail because of the engineering and material used so it would have to be an extreme operation that would cause the failure
other similar noises can be from loose valve seat insert
piston hitting valve head from failed valve spring big end bearing cam lobe worn out

ATVs | Answered 10 hours ago | 18 views

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

Polaris ATV | Answered Yesterday | 214 views

it could be a vacuum petcock or a fuel pump.

ATVs | Answered Yesterday | 21 views

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

Honda 2005 TRX... | Answered Yesterday | 34 views

copy and paste( )

ATVs | Answered 2 days ago | 24 views

ummm melted wiring??? ya think maybe??

Yamaha 2004... | Answered on Dec 04, 2017 | 30 views

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

ATVs | Answered on Dec 04, 2017 | 34 views

burnt valve , incorrect tappet clearance and head gasket spring to mind

ATVs | Answered on Dec 04, 2017 | 19 views

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 | Answered on Dec 03, 2017 | 67 views

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

ATVs | Answered on Dec 03, 2017 | 33 views

the solenoid has gone bad most likely. if that checks ok, could be the keyswitch, kill switch or neutral safety switch.

kawasaki 2005... | Answered on Dec 03, 2017 | 21 views

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Polaris ATV | Answered on Dec 03, 2017 | 23 views

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Polaris ATV | Answered on Dec 03, 2017 | 168 views

First off be careful because you will be working under your vehicle.
Check your linkages, fittings, bolts (that none are missing), and splines.
Obtain a new gasket and gear oil then drain and remove the inspection cover (s). Check that the gears, splines, bushings, bearings, etc. are good and intact.
Check oil sump areas for fragments or broken parts.
My guess something inside the transfer case has snapped but you never know could be something that came loose.

ATVs | Answered on Dec 02, 2017 | 20 views

dead short in stator
replace it

ATVs | Answered on Nov 30, 2017 | 22 views

they probably regret ever making them :P no idea, go ask yamaha.

ATVs | Answered on Nov 29, 2017 | 28 views

thats a solenoid. might need to replace it now.

ATVs | Answered on Nov 29, 2017 | 31 views

try adjusting your valves

ATVs | Answered on Nov 29, 2017 | 26 views

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