OFF Idle BOG...

[N2Otorious]

I have read all the tuning threads and understand most everything written, but I have a question about this off idle bog. If I idle and easy out on the clutch and get rolling fully engaged at idle and then go WOT my bike BOGS for about 1 1/2 to 2seconds and by that time enough speed and rpm has happened and then she wakes up and stands striate up. I have 27.5 pilots and 280 mains middle groove on the Dynojet stage 3 needle.

 

note: I also have this BOG off Idle at neutral sitting still no load. the BOG is much shorter but still present(Pilot too big?).

 

combination is stock carbs with above jetting, FMF Gold series FATTY pipes, FMF Powercore II silencers, FMF Torque reeds, K&N Pods with Outterwares, NO Airbox. 3 degree of timing advance.

 

To get the bike to crank, I have to pull the choke all the way out, as soon as she fires wait 5 seconds and then turn choke all the way off. smokes alot while choke on, engine will stall if choke left on.

 

I just made my runs to do a plug chop and from what I can tell, I have a tannish discoloration on the electrode of the spark plug(BR8ES), and on the center part a slightly tan coloration high on the center plug porcelain(I'm thinking of going 1 jet bigger on the mains).

 

 

Any insight guys?

Edited November 5, 2007 by N2Otorious

[theshee]

Sounds like a pilot jet issue.

[black sunshine]

I'd do a plugchop, with pods your 280's may be lean. Try leaning the needle out 1 clip position, this will help with your bog.

[N2Otorious]

I'd do a plugchop, with pods your 280's may be lean. Try leaning the needle out 1 clip position, this will help with your bog.

 

Well I did the high speed runs up hill, and desribe what i see on the plugs. I'm thinking either right on or barely lean on mains, and a guess at rich on the pilots.

[N2Otorious]

Sounds like a pilot jet issue.

 

Thank You for your input...