Well, im going to take my quad in to a machine shop in a few days and going to get it bored, and after that i plan on getting a high compression piston, than a cam but i want to make sure on a couple things the 300ex comes stock 282cc, so if i bore it to a 330, i will need a new piston matter what, right?(not standard bore), so i was looking on like rockymountainatv.com and im wondering what bore size of a piston i would use.


Thanks

 

any help?

 

if you are going to have your cylinder bored you need to have the piston there so the machine shop can bore it to the right clearences for that piston..........

 

ok thank you, so ill buy the piston first, do i get a standard bore or should i get it like .10, .20 or what

 

check out Powroll, i think they have a 330 kit, check their sizes and all


powroll site

 

If you are boring due to damage, the shop should make the assessment of what oversize it will take to clean up the bore. If you are boring simply to have a larger bore, it does not matter what piston size you select. You cannot, however, bore to 330cc's. That upgrade requires re-sleeving--check out
Powroll for more information.

 

Dude...I'd sell the 300 and buy a raptor[img]i/expressions/face-icon-small-smile.gif[/img]

 

lol jay, im going to see how mutch money i have by the end of the month(still looking into yours) the only way i will bore this is if i have enough money extra, since this is going to end up being a brother/friend bike once i get a raptor

 

ya i saw the site, but im going to take it into a local shop(they bore, ect) the guy estimated the price would be around $60 to $80 to bore it if i do 80 over+cost of piston and cylidne sleeve he said total it wouldnt be more than 250 he thinks