Super Jet Engine build please help with baseline jetting

A

adubaz7

Location
az
Here is my setup

62T cases
61x cylinder with north west sleeves with freestyle port 85mm (771cc)
Pro X pistons (85mm)
V-force 3 reeds
Riva dual 44 manifold ported
dual 46mm buckshot carbs
Protec pipe
ADA head 165 psi
Stock cdi ( will be installing EPIC after tuning is close )

I bought the carbs used and I dont know what they came off I installed them and the ski runs but the part throttle seems very rich and the top end seems rich also but it is hard to tell with the part throttle acting so rich but pretend I did not talk about the way it runs as I may be just feeling something different than what is really going on I am new to tuning can someone give me a ballpark suggestion where my jetting should start it currently has low speed jet of 120 and high speed jet of 100 for each carb.
 
onedumbtrucker

onedumbtrucker

Now with 20% more pulp.
Location
London, ON
Don't know how different buckshots are from mikuni but I would say popoff is too low if it is rich at part throttle. If you hold at about 1/3 does it start to blubber?
 
A

adubaz7

Location
az
thanks guys I changed pop off spring to a 95g each and jetting seems pretty good now I found a few setups in that list that where similar to mine and the jetting was also similar to what I already had. I think I had found another issue at the same time as making the popoff change though I decided to add a ground to the ebox and that seemed to really make a difference I think that part of my jetting challenge was that the spark was weak the whole time now the machine is more responsive and seems a bit more pissed off when I get into it.
 
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