I made the openings on the carbs match and I left the small cap off of the top. I shaved back some of the plastic on the inner part where it is open. Maybe I exaggerated a bit but I think it is a good setup to keep water out.
Carburetor (specs) Database: SuperJet and Blaster 1
- Thread starter Sanford
- Start date
I made the openings on the carbs match and I left the small cap off of the top. I shaved back some of the plastic on the inner part where it is open. Maybe I exaggerated a bit but I think it is a good setup to keep water out.
- Location
- South Africa
You have done all the rights airbox mods(except cap can go back on), run only single screens, most people don't realize how much the stock setup holds a 760 back
I think the 760 intake is pretty good. I'll take it off and run with open carbs just to see. I am running the single screens. My thoughts are (with total fuel flow at 247.5 at 2700 ft elevation) that my setup is making really good power. I think I must have nailed it with my porting or HPE's cylinder porting. It runs really strong, seems it is punching above its weight class a bit.
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When I have tried running without the top of the "airbox" it made a huge difference in tuning (much leaner), I'm not so sure that translates to a huge difference in power though.
I am looking for some starting specs for an engine I am building using a wetjet 46mm setup. Looking at the jetting that works in this thread for a single 46 it seems that 120/150 may be a decent starting point, I however just cracked it open and its 107.5/150 1.5ns unless I read the text wrong, its really small. Considering its getting a new top end should I go fatter than 120/150 to ensure I dont run lean during break in? Also, the 1.5 ns seems a bit low but I dont know poo about jetting.
Engine
61x/61x with mild porting @83mm using Sudco pistons
Coffman Sizzler
ADA head @170
I plan on using the stock wetjet FA with one screen. Any thoughs on pop off?
Thanks for the help.
Engine
61x/61x with mild porting @83mm using Sudco pistons
Coffman Sizzler
ADA head @170
I plan on using the stock wetjet FA with one screen. Any thoughs on pop off?
Thanks for the help.
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Zero Client
BeerrroooOOOT!!!
- Location
- Douglasville, GA
I just got wetjet 61x in my superjet tuned real well. Strong bottom and great mid and top with a type 4 dry pipe, little different than a wet pipe but I ended up
145 main but 150 wouldn’t hurt
135 pilot
2.5 n/s with 115 gram spring( think I should try an 80 gram spring yet)
Bottom screw 1.5 turns
Top screw 2.0 turns
Zero Client
BeerrroooOOOT!!!
- Location
- Douglasville, GA
No don't go with a 80g on a 2.5ns. Go with 140P and 150M Your screws are too far opened w current jetting.
Only reason I wanted to try it was because it came with those pop off settings stock I think, I don’t disagree with a bigger jet because I started at 125 low, had a lean hesitation, now I’m where I’m at now and it’s much better. Thanks for the tip
Zero Client
BeerrroooOOOT!!!
- Location
- Douglasville, GA
SBN46 come with 2.5ns/80g per Mikuni. I guess you could try it, but 14psi pop is a very low value. Make sure you check for dribbling from the bombsight. It might be better suited to raise your pilot than it would be to lower your popoff.
- Location
- Everett, wa
If the pilot jet is to large (example 130) would going to 120 reduce or eliminate the smoky exhaust I have at slow speed (in no-wake zone)?
Quinc
Buy a Superjet
- Location
- California
I would start with turning your screws in a half turn. If performance gets better go to a 125, then if needed drop to a 120.
- Location
- Everett, wa
Great suggestion - thanks.
Mike W
Infidel
- Location
- North Florida
This can be added to the database.
Riva Red pipe
96 B1
Stock 62T/61X
Stock dual 38’s
Stock F/A
135 main H 1.25 turn out
75 piolt L 1 turn out
1.5 n/s’s
115 gm springs
Riva Red pipe
96 B1
Stock 62T/61X
Stock dual 38’s
Stock F/A
135 main H 1.25 turn out
75 piolt L 1 turn out
1.5 n/s’s
115 gm springs
what is your set up on the carbs
- Location
- Washington
About to drop the engine back into my BOB and looking for suggestions, 64x blowsion head 170psi, oem 44's, b-pipe.
Right now the carbs are at 140 main, 120 pilot, 2.5 N/S with gold 115g spring. 1.75 turns out high and 1.5 out low.
haven't ran this setup yet i got the ski and completely rebuild it, the carb specs seem a bit off from everyone else running a 760 on here
Right now the carbs are at 140 main, 120 pilot, 2.5 N/S with gold 115g spring. 1.75 turns out high and 1.5 out low.
haven't ran this setup yet i got the ski and completely rebuild it, the carb specs seem a bit off from everyone else running a 760 on here
There’s a recent thread about this in the general section on setting up a 760 with b pipe, I think we decided start at 125 low and 115 high 24 psi pop off
- Location
- Washington
Thanks! That thread mush have slipped through my fingers
- Location
- native idahoan
At 3000 feet elevation
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