2001 Yamaha Raptor 660 - Need Help!!!

[raptor1660]

Hello I have a 01 raptor 660. was having problems withb it running like sh**...so I through a new plug in it and noticedd there was a oil on it now it won't even fire up even push starting it...is it a cracked head, does it need rings, valeve guides..what is it I need some help before I start ordering parts thank you

[oxidized_black]

you'll have to pull the head and inspect it first before you order parts

[raptor1660]

Is a cracked head common with 01 raptor 660"s

[oxidized_black]

not sure, haven't heard bad things about the heads. search out online for more info in Yamaha ATV Forum - Yamaha Quad/ATV Community , all strictly yamaha machines ...

[oxidized_black]

alot of info here ...

Yamaha YFM660R Raptor (2001-2005) - Yamaha ATV Forum

[quadnut20]

Is a cracked head common with 01 raptor 660"s

Only if they over heat I`d go with OXY`s suggestion or pull the valve cover first and see if one of the gaskets if bad !!

[raptor1660]

Got it!!!, Didnt have enough compression made a leakdown tester and found out my intake valves were super tight...It has a hell of alot more compression now, But it doesnt want to crank like there isnt enough juice to do it, new starter? or better battery i have just a good old ace hard ware battery in it

[oxidized_black]

better battery and beef up the cables larger gauge cables

AND GREAT !!!

[raptor1660]

already have better cables on it what battery would you recomend?

[oxidized_black]

atv batteries are swaying toward the gel filled.

i'd get something/anything that has alot more cranking amps than the OEM ...