My 2001 raptor wont start

It is not recommended to change the bolt pattern on a Raptor 660. The bolts are designed to fit the frame and any alterations could weaken the frame and cause damage. If you are looking to change the bolt pattern, you should consult a professional mechanic or experienced fabricator who is familiar with the Raptor 660.

blown head gasket would be my guess

overhaul the carby of fix the injector problem

Hi Chase,

time to go for the engine repair,it can be wrong with engine bore ,piston rings ,valve rubbers,or all of them together .
i think its problem with your bore.

regards,
nuwan

My 2001 raptor 660 starts when it's cold and runs great but if I shut it off when it gets hot it does'nt start back up until it cools down

2 possible issue, your starter solenoid and or your starter relay.

i would not taket the last owner's word for it, even the bike does not agree it is new.

when its hot and humid you could be having a ignition coil or cable problem.check cables and replace plugs, then take it from there. have your ignition coil tested also. backfiring is a sure sign of an ignition problem

Drain and replace the gas with fresh.
Remove the air cleaner and spray carb cleaner into the inlet. Work your throttle a little then put everything back together and try to start it.

sounds like a head gasket, get your head bolts re torgued before the problem becomes worse. it might be to late now, might have to replace the gasket to be sure.

my polaris outlaw 500 sarted cuting out last ride could not ecerate past 1/4 throtle and was back fireing so went to fix and wont run at all i have spark, plug is wet, changed fuel, seems to have compresion, when it turns over it tries to fire at times more like a hickup almost stops the sarter and a puff of smoke out the carb. im about to tare it down any ideas whats wrong ? bike was hard to start but ran ran perfect killed raptors with ease. bike was bored and built by some shop before i owned using ktm sleave and piston ? motor says nicols 520. didt over heat or make noises. have tried cleaning carb, jeting no luck please help