Superjet - carb jetting vs current setup

[Polish jet pilot]

Hi guyz,

Working on my project ski (1st Yamaha) and I learn as I go ahead. I really need to ask (beating a dead horse once more - sorry) about jetting:

My setup:

- OEM F/A - removed 1 screen from each carb
- OEM cylinder
- OEM head
- B-pipe (bored over few mm's)
- OEM 2008 impeller
- FS cone

Fuel: 98-100 octane (European)

Looking for low end BRAPPPPP!

Wiill this jetting work:

130 HI - if so how many turns from closed position (??)
75 LOW - same as above
115gr spring OR OEM 95gr spring
1.5 needle/seat

Sorry again, but there are too many stories about do's and dont's - wanted to be clear so I dont waste a year of savings

Andrew

 

[proh]

you need 70/130/95 grams spring and stock needle and seat. low screw should be set to obtain best idle, high screw needs to be set to where the highest rpm is obtained.

good luck

Ahmed

 

[Mark44]

Read this http://www.x-h2o.com/threads/39846 no one can tell you exactly what you need they can only get you close.

Mark44