PLEASE HELP !!!03 monster dies when temp reaches 130

[moto-medix]

I am now putting it all back together again so i can warm it up and do a compression check...the reason i suspected the valve was that i pulled the air box and could visually see backfiring into the front cyl intake. I will do a compression check and post results. thanks again.Ray

[moto-medix]

ok...put the bike back together...added some lucas fuel injector cleaner and warmed her up. ran a little better...but pipes turned cherry red...still starts backfiring out front cyl. noticed a black oil-like substance on plugs new plugs). did compression check...150 psi in each cyl. going to check injectors now.

[Howie]

The pipes will turn cherry red if the bike is at high revs and not moving.  Of course, a lack of fuel will make things much worse.  Don't use more than the recommended dosage of injector cleaner.