why did my blaster lean out??

[yamahaassblaster]

hey everyone, about 2 weeks ago i put a vitos 240 kit in my bike and it started fine. i let the rings seal and had 2 tanks of gas through it and saw no problems until the other day when i took it out. i warmed up plenty and got on my way and it just died after about 5 mins of riding. i looked at the plug and it was white as can be, but cant figure it out because i have a large jet in the bike to keep it rich. and i know it was nothing to do with oil because its premix.. if any one has an idea to what happend feel free to give your opinion.

[BlueDiablo]

What size carb do you have? is this the first youve actually ridden it since the break in? Did you retorque everything? You cant really do plug chops unless its been WOT. I hope you went with a bigger carb tho.

[yamahaassblaster]

Its the stock carb jetted with the vitos kit included with the 240 jug. The guy at vito's support told me if i started with the biggest jet in the kit i could use the stock carb. It wasnt the first ride since the break in, i have been riding it a little every day to break it in. I have a Keihin 35pwk carb but didnt have the right jets so i didnt use it.

[BlueDiablo]

get it on.

[ROACHIE]

when i put on my vito's 240 it ran weird but i didnt re-jet it ran fine till i got in 5th and 6th gear then it would bog and come back...after about 2 weeks of riding 2 of my top end bolts loosened up on a ride and i didnt think much of it so i got my buddy to tow me home and i heli-coiled all my head bolts and started it up...it was makin a really weird almost grinding noise so i ripped off the top end and checked the bottom end which was just recently replaced with a hot rodz crank...the crank bearing went out and made my piston score the cylinder needless to say im highly pissed off and i still need to buy a new crank

[yamaharider02]

tempature could also be a major factor, if it was warmer or cold when i first jetted it and the tempature changed alot then it could make the diffrence, i agree with blue diablo tho get the 35 mil on there , a world of a diffrence, LET IT BREATH!!

[Trickedblaster]

A 35mm will definately increase horsepower with that 240 kit,but it is actually a small carb. I used to run a 36mm on my stock bore/stroke motor. Might wanna consider selling it and gettin something bigger....just my two cents

[skipzero]

A 35mm will work just fine or at lest a lot better than a stock carb. I ran a 34 1/2mm on my stock bore stock stroke also. But as long as he doent have any more port work than some vito's port work he'll be just fine. But if youwant a new carb I have a 39mm rifled out to a 41mm airstryker with a Dave Moore poower jet in it for $280+shipping

HEy ROACH I have been tryin to warn peps of the HOT RODZ cranks they suck. If you get a new one I would SUG. a CRANKWORKS crank.

[yamahaassblaster]

Alright thanks for the advice guys.. i just honed my jug and ordered a new piston and rings. im looking for jets for my 35mm carb so i can use that instead of the stock one.