Carburetor (specs) Database: SuperJet and Blaster 1

[tensecrnr]

OK I GOTZ A ?...i just picked up a rn sj with a 61x in it...single carb(((looking for the intake change over to dual 38,s))) but it has a type 4 dry pipe...and tdr water box...the power band is very weird(typical race set up mostly top end) is there a way to tune it for more bottom end???or does anybody want this freaking pipe...?(i need a b-pipe) yanks hard a little late...lol i would be doing rolls and stabs at 40 mph...ouchy...<<<help>>>

 

[tensecrnr]

Bump bump...

 

[Hugh.G.Rekshen]

OK I GOTZ A ?...i just picked up a rn sj with a 61x in it...single carb(((looking for the intake change over to dual 38,s))) but it has a type 4 dry pipe...and tdr water box...the power band is very weird(typical race set up mostly top end) is there a way to tune it for more bottom end???or does anybody want this freaking pipe...?(i need a b-pipe) yanks hard a little late...lol i would be doing rolls and stabs at 40 mph...ouchy...<<<help>>>

I've got dual 44s with my 701 and type 4 dry pipe on a previous race engine. Low end power is non existent but top end is crazy fast. Needing tuning info myself...

 

[Fstrkls1]

Can any one help I'm running a 6m6 with aftermarket head flame arrestor and a single munkni 44 I'm trying to get it jetted right what's the stock jetting and air screw settings for this ski? And what should I change with putting the flame arrestor on? Help me please I want to ride not wrench

 

[mxmark4]

Can any one help I'm running a 6m6 with aftermarket head flame arrestor and a single munkni 44 I'm trying to get it jetted right what's the stock jetting and air screw settings for this ski? And what should I change with putting the flame arrestor on? Help me please I want to ride not wrench

try 120 low jet and 135 main 1.5 turns out on each to start

 

[Lil Dick]

guys i need some help jetting my carb i got a sbn 44 minkuni with aftermarket mani to make it fit my kawi x2 650 stock porting just a mariner head and a mariner pipe upgrading the carb from stock 28 to this 44 i need some help jetting the high in the 44 now is 115 and the low i cant really read the numbers that well but it looks like a 115?? if anyone could help me out that would be great just need to no the high an low, n/s, spring, and what to set it at to start tuning to get some power out of it thanks

 

[Soul Man]

6M6 case with stock carb, upgrading to a 701 cylinder. What jets are people using? Searched this thread for "6m6" but didn't find anything. Not even sure what size carb the stock one was... I know the 701 single carbs used 44's. Will have Factory B-pipe.

 

[mxmark4]

stock carb on a 650 is a sbn 44

 

[LimitedSlip7]

Well, after reading through this thread I'm still not quite sure exactly what to start with. My motor came already built with a two SN package deal and it was claimed to have been purchased from some race team in Cali who no longer needed it. The motor does not appear to have been ran and looks very well built and ported. I pulled apart the carbs and everything looks like new. There were 110 pilots and 110 mains, with 1 turn out on all screws. I still have to get a popoff guage. Any recommendations on what to run with this setup? From what I have gathered from this thread, I should probably start with 115 pilots and 130 mains. Can anyone give me some additional information?

Setup:
Ported 62t/61x 701 with +1.5mm pistons (~730cc)
ADA girdled head with 195psi front and rear
Dual 44mm SBNs with Prok flame arrestors and Outerwears
R&D Drypipe - soon to have Jetworks injection kit, but will be tuned with no water injection at all
Modded stock waterbox - cut open and new baffle plate made with larger tubes
Solas 13/17 prop

Thanks

 

[Hogggman]

Looked through all 8 pages and probably missed it but can't find a setup similar to mine. I got a 760 out of a gp 760 single 46 stock compression and stock porting b pipe and tau ceti f/a help I need a starting point

 

[cattledog]

Well, after reading through this thread I'm still not quite sure exactly what to start with. My motor came already built with a two SN package deal and it was claimed to have been purchased from some race team in Cali who no longer needed it. The motor does not appear to have been ran and looks very well built and ported. I pulled apart the carbs and everything looks like new. There were 110 pilots and 110 mains, with 1 turn out on all screws. I still have to get a popoff guage. Any recommendations on what to run with this setup? From what I have gathered from this thread, I should probably start with 115 pilots and 130 mains. Can anyone give me some additional information?

Setup:
Ported 62t/61x 701 with +1.5mm pistons (~730cc)
ADA girdled head with 195psi front and rear
Dual 44mm SBNs with Prok flame arrestors and Outerwears
R&D Drypipe - soon to have Jetworks injection kit, but will be tuned with no water injection at all
Modded stock waterbox - cut open and new baffle plate made with larger tubes
Solas 13/17 prop

Thanks

how did it run with the 110 mains and 110 pilot

 

[Littlecake77]

Hi limitedslip,

i have a similar setup

Ported 62T 701 with wiseco 81mm pistons
ADA Girdled Head with 35cc Domes / 185PSI
MSD cdi
Dual BuckShot Racing Magnum 47mm with additional fuel pump
R&D Dry Pipe + MSD Water injection
R&D Pump Shoe + TBM Cone + Protec Compresion & steering nozzle + Skat-Trac C75+ 14/20
RPM max is 7230 T/min


The carb Setup is:
Low Jet= 110
High Jet= 140
Needle & Seat= 2.0
Spring= 95gr
Return Jet= 80

Alternative setup with dual BuckShot BMC 44mm:
Low Jet= 115
High Jet= 140
Needle & Seat= 2.3
Spring= 95gr

 

[xavix85]

hi.
i have 2008 superset with:
msd ignition. factory b-pipe. mikuni sbn 46 single.
i live at sea level.
what is good starting point to start jetting my ski?

 

[davidescu_radu]

stock sj701 with Riva red pipe

Dual 38
1.5 n/s
black springs - 30psi pop=off
75
135
1 1/2 low screw
1 1/4 high screw

WOT test - yes

riva pipe,lightened flywheel,carbon tech reeds,R&D stuffers,tau ceti tornado filters,stock engine

 

[DarkWater]

Very useful info here! Thanks!

 

[madscientist]

Brand = Mikuni
Model = Retail OEM
Size = 44mm
Quantity = 2
Main Jet = 100 H
Pilot Jet = 115 L
Needle/Seat = 2.3
Spring = 80
Pilot screw = adj 7/8 turn out
Main Screw = adj 1 turn out


trying to understand this. using a 2.5 seat instead of the 2.3 would i be able to run say 110l/115h or is there something missing? it seems the bigger the seat the smaller the jet gets to a point. i am trying to dial my oem 44's. currently 1.5 seats w/ 110l, and 125h not reaching rpm potential nor the bottom end pull.

 

[waxhead]

Brand = Mikuni
Model = Retail OEM
Size = 44mm
Quantity = 2
Main Jet = 100 H
Pilot Jet = 115 L
Needle/Seat = 2.3
Spring = 80
Pilot screw = adj 7/8 turn out
Main Screw = adj 1 turn out


trying to understand this. using a 2.5 seat instead of the 2.3 would i be able to run say 110l/115h or is there something missing? it seems the bigger the seat the smaller the jet gets to a point. i am trying to dial my oem 44's. currently 1.5 seats w/ 110l, and 125h not reaching rpm potential nor the bottom end pull.

Whats on the rest of the engine is it stock with oem 44s

 

[madscientist]

blaster limited pipe, oem44's and a head on the way. clean up work on exhaust ports, port matched ex manifold and head pipe..

will be running pump gas compression

 

[motozachl]

Brand = Mikuni
Model = OEM
Size = 44mm
Quantity = 2
Main Jet = 115 H
Pilot Jet = 120 L
Needle/Seat = 2.0
Spring = 95
Pilot screw = adj 1.5 turn out
Main Screw = adj 1.5 turn out
- - - - - -
Gas Octane = 93
Altitude = sea level
Main type of riding = all water
Would it pass the 10 second WOT test = idk
Powerband = hits HARD!!!!
Motor type/setup = bb781 61x/62t, 200 psi, b mod pipe, enhancer

 

[MADMAT]

Man I have avoided carbs all these years and now I have to tune! It is hard! Great thread!