20 Most Recent Yamaha 2004 Raptor 660R Questions & Answers

Cranking pressure should be around 140+psi

Carb needs cleaning or rebuild they sale carb rebuild kits on eBay .

Make sure that the shifter did not move out of N. Recheck your battery connections.

i dont understand your question. should have sight glass on engine or a dipstick . check level by removing dipstick if equipped . check w engine cold before starting every time you want to ride. should be inside full marks or you can damage engine. sight glass should be full of oil if you can see silver inside glass dont start or ride. damage will occur.

timing jumped . had it in gear when u removed chain sprocket. need to align timing ears. check utube for a how to video. its not a simple job . recommend a well known shop do repairs. sorry no easy fix.

Take it to a PROFESSIONAL Factory trained mechanic..they have the skills and expertise to figure out why this is happening. Make sure YOU tell the mechanic everything you can think of..your riding style,..do you drag race it?.. do "burnouts"?.. play in the mud..??..etc..etc.. He needs to know this!! (he will ask if he is really good!!)

doubt it

hey Tom. get this manual.. OR get a FACTORY service manual from your local dealer.... this will be invaluable later... Yamaha Raptor 660R ATV Repair Manual 2001 2005 please mark as helpful, thanks...

Hey Anon, this is NOT something to "try and learn" how to do..find a professional that is will to tutor you when you do this for the first time! It COULD save you A LOT of $$$$!!!!!

If you have good spark then it's most likely a fuel issue, anything off of idle is dealing with the main jet and metering needle, clean jet and check needle for excessive wear.

Check the fuel flow through the tank valve. There are screens inside the tank that may be blocked and restricting flow.

.004 intake .005 ext

must hold brake, use the foot brake!