its knocking what could this be?

[konceptrcin]

I just bought a blaster the guy said it has a new top end its like knocking at idle but it stops when u give it some rpms I changed the oil and gas and spark plug last night and still doing the same thing I hope this is an easy fix!


Thanks

 

[bundyho1]

I think they all do it a little I:I

 

[konceptrcin]

really my other one dont do it

 

[blaster_schmaus]

mine has a little, but nothing serious i dont think

 

[konceptrcin]

yeah I have. No idea

 

[hoerter2158]

i had that once and my piston walls shatered! It might be piston slap?

 

[chris960]

I think all blaster's are noisy at idle. I know when i bought mine it had a new hot rod's crank and wiesco piston installed and it still rattles at idle. How long has it been since your last rebuild??

 

[2stroke4life]

myne used to do it alot but i havnt noticed recently, i thought it was a valve or somthing- jk, 4 strokes are garbage!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[2stroke4life]

I think all blaster's are noisy at idle. I know when i bought mine it had a new hot rod's crank and wiesco piston installed and it still rattles at idle. How long has it been since your last rebuild??

clean quad by the way, i like the look

 

[wooten]

have you checked for play in the piston too see how much slack is in there??

 

[chris960]

Thanks 2stroke4life it was my winter project tore it down to the frame repainted & put on new tires,pipe,force v-3's,hyd. rear brake