TheRezyReb

surging = lean condition right?

inderocker

For the most-part, is it surging when the bike is cold or hot? What RPM range?

BlackHawk04

Same here, surging in the lower speeds - 10-25 mph. I poked some holes in the stock pipes and I'm getting the poppity pop when its cold at slow speeds too. How to richen??

TheRezyReb

Problem solved, just moved the needles up.

RickB

You can also shim the needles if you still have the stockers in there... #4 brass washers work well for that. the ones I put in (1 per carb, stock exhaust still) were approx .025"

Hawkrider

You're popping on decel is from PAIR if it has not been disabled/removed.

BlackHawk04

It's on accel, mainly just when cold. What is pair? Thanks

Hawkrider

PAIR description, etc. is in the Knowledge Base. Is the popping on accel through the pipes or through the carb?

BlackHawk04

Carb

Hawkrider

Yup. Running lean. Rejet or shim the needles.

BlackHawk04

Thanks for the feedback. Fiddled with the carbs a bit, cleaned them (seemed like some residue in them?) blew out the filter and meanwhile i had drilled out the pipes. For whatever reason the thing is running way better than before. Sounds great too!

BLAKCK HAWK

2 quetions sir
1]HOW DID U "drilled out the pipes" ,
2] and did u only clean your carbs to get a smooth running bike or did u jet-it ?

BLAKCK HAWK

what's the difference between rejetting and shimming ?
my bike surges on light accel sometimes hard accel.
has k&n, and gutted stock pipes.