ok would running with out an air filter lid would that cause any motor damage cause my motor zeezed up the piston had peaces missing from inside the motor and the crank was all shaved up and shavings were every were in the motor or do u think it was from the self oil mixing thing did it.

 

It could be either one.Running without an air filter lid may have caused you to run too lean from the extra air if you didn't rejet. This can cause a burnt piston.If you didn't add enough oil with your gas when you pre-mixed that could cause a siezure as well.If there is enough of the piston left to look at, running lean usually melts the top side of the piston (and may leave aluminium on your spark plug) and lack of lubrication usually will scuff the sides of the piston.

 

hey i was j/w if putting too much oil in the mix is a problem? i dont mean like half and half but like just a little bit more.

Andrew

 

Too much oil in the gas shouldn't cause the problems you described.It would probably foul the spark plug with that much oil before it hurt anything.You may need a little larger jet to allow for the amount of oil flowing through the carb instead of straight gasoline.

 

running too much oil will displace gas (lean condition) Odds are without jetting for the airbox lid removal and not rejjeting it ran too lean.

 

noooooo it mixes the gas and oil automaticly i dont do it sepretly. and the piston dident have any burns on it.and before it zeezed up i herd the motor start knocking.

 

My be this will help...

If you had a good air filter, running with the lid off wouldnt hurt.
Now, like oldyeller said, you could have burned a hole in your piston.
If you take your box lid off, That would increase air, making it run too lean.
Now, an air cooled bike like the blaster, runs at about 290 degrees F.
If you ran lean, this could easly push your bike to 350+ degrees, melting your piston.
Thats a safe bet, Instead of buying a$5 jet, you now have to pay boo koo bucks for a new motor!!
Sorry man, best of luck!!!
Later

 

All i need is a new top end and piston and crank so im just going to buy a performance crank and piston and clutch. But i dont have to pay for it my mom is lol but i do got to work around the house. even know it is going to cost like $1000 cause i have to take it up to donelson cycles for the to put it all back together with all the new parts.

 

toooooooooooooooo much air to fuel mixture

 

same thing happened to me but it wasnt because of those reason, it shouldnt cost you 1000 bucks to fix it tho, i payed 360 bucks for all the parts i needed and i got my cyclnder bored fo another 75 dollars so it cost me around 450 with tax and everything, but i put it all together myself