carbs to big or jetting prob

[freeride87]

i have 87 banshee i blew it up coupl weeks ago .i just put new wiesco crank, 65.5 jugs,wiesco prolite pistons,it has 34mm pjs fmf fattys, power core 2. its popping out the right side and there i barley any smoke coming fom left side. would problem be jetting or carbs to big?the carbs had 158 mains i put 165 in it did same thing.

Edited March 1, 2010 by freeride87

[06specialedition]

Are they synced good? that may be your problem

[freeride87]

yes i had them done at local shop.im running a 165 main with 58 pilot

[Dinner]

Those are pretty big carb's for a fairly stock engine IMO. I would see if you can get your hands on a stock set or 28's. If not, you'll have to try to re-jet doing plug chops and reading around to see where you should be at for altitude and temp. It just might be a real pain trying to get those big carbs dialed in...

[06specialedition]

Yeah I almost bought new carbs but from what I've heard stock carbs work really well on a ported built motor.

 

Bigger carbs can just make the bike fall on its face

 

I'm not an expert, just my opinion.

[Dinner]

Well stock carbs really shouldn't be used on a Ported engine. If anything you should bump up to at least 28mm. If you hill climb, or do a lot of hard riding where you demand that constant high fuel/air rate. You will have to upgrade carbs from stock in order to keep the engine happy.

[freeride87]

sorry i found my mics today the are 35mm pjs

[freeride87]

i put stock carbs on took care of my problem thank you