New jets or not

[steve beddow]

ok
you whiz kids
She's a1988 SB50P. I recently put in a 44mm top end kit. Compression is good. I've got over 30 mi on the upgrade but it runs like shxt at from 25-32mph. It bucks like a wild horse unless I adjust the air mixture screw all the way in (clockwise). The kit came with a #68 jet which I installed. The kit suggested putting a couple extra 1"holes in the air filter. I have Closed up all but one hole just to get it to run at higher rpm's. Any idea's? HELP

[Bear45-70]

Yeah, it is obvious, with the holes close you are too rich.

[steve beddow]

Are you saying I should reopen the holes I made

[bakaracer]

so with all but 1 hole closed and the air/fuel screw turned in is the only way the engine will get to the high rpm's? have you tried closing all the holes and turning the air/fuel screw to the factory set point(1 1/2-1 3/4)?

[steve beddow]

I DID THAT THIS MORNING. FIRST i OPENED UP TWO HOLES. WOULD IDLE OK BUT REVING UP SHE JUST BOGGED DOWN. NO MATTER WHAT I SET THE SCREW IT WOULDN'T RUN. JUST BOGGED DOWN WHEN THROTTLED UP. SO THEN I PUT ON A FACTORY STOCK FILTER. IT STILL WOULDN'T RUN. NOW IT WON'T START WITH NONMODIFIED FILTER. BUT IT MAYBE FLOODED SO I WALKED AWAY FROM IT FOR A COUPLE HOURS. I'LL GET BACK LATER.

[dun rite]

check out this guide on carb. tuning. http://enigma.lhosting.info/carbtune.html

might help. it's for larger carbs but should be same steps for our smaller ones.