what plug to run in a 440

[bikebuilder]

just pick up a 440 and was going to do a tune-up was not shore what plug to get ? it also has a k and n oil filter in it can that be cleaned and used again? the guy i bought it from didn't tell me what kind of gas he was runnig in it, if anyone can help me out i would be greatful.

[bigbad400]

just the stock plug works fine in the 440, you cant clean the oil filters, they are cheap just buy like 5 when you buy em and then youll have them on call. if its a 12.5:1 440 then youll prolly want to run race gas in it, mines 11:1 and runs good on just good clean premium like shell v power 94 octane. you may be able to get by on premium with octane booster on the 12.5:1 piston i dont know but i know they recommend race gas.

[Wheelie]

Use a DPR9Z plug, it's 1 heat range colder than stock.