Super Jet Superjet carbs jetting

Xaviertahiti

Xaviertahiti

Location
Tahiti
Hello,

I am looking for some help please!! I just modified my engine and don't know what to do to tune my carbs...

Here is what I have :

- Stock mikuni BN38 carbs with stock jetting (130 main - 70 pilot - don't know what the spring load is)
- Prok air filter with adapters
- Factory Modified B pipe, with dual cooling and ported exhaust manifold
- ADA girdled head with 35cc domes
- V force 3 reed valves

Can someone please help me choose the best jetting setup for my carbs please ??

Thanks a lot!
Xavier.
 
CANDYANDCHROME

CANDYANDCHROME

Location
Rochester
try 135 mains 75 pilots and 90 gram pop off springs thats what im running with b pipe mod chamber ada head with 35 cc domes (195 psi) its what i came up with after about 30 diff configurations of jets.
 
Xaviertahiti

Xaviertahiti

Location
Tahiti
Thanks a lot! Thats what I was gonna do! Just a question, the 90 gram spring, is it the OEM one ?? I have a 95g aftermarket with my 135 and 75 jets..
 
Y

Yamer-Jammer

Location
Mesa, AZ - Flagstaff, AZ - Covington, WA
How do you determine what jetting is correct, trial and error?

I am not sure how much of this is relevant for jetting... this is what I am running:

760 (64x) with dual 44mm mikuni's, MSD cdi and coil, race logic port kit used for cyl porting, ADA girdled head with 38cc domes, Factory "b" pipe, TBM lightened flywheel, Cold Fusion lightened couplers, and R&D reed spacer with Mototassinari reeds (aka: Vforce).

Thanks in advance!
 
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