Needles Stock or Dyno?????

[Tompasio]

Whats the major difference between stock needles or dynojet kit?

[salty_monk]

There is a much bigger taper on the DJ ones (i.e. the tip is much thinner) & the have moveable clip positions.

Dan

[Tompasio]

I have a GSX 750 ES -1983.Just mounted a Marschall 4-1,Stock airbox with new originaltype filter,Raised needle 1 step,Stock main jets is 120.Have change main jets from 120 up to 125,But it will still dont rev out properly at high speed.What to do? All carbs are cleaned with solvent and compressed air.

[hampshirehog]

If you're running with the stock intake I'd advise putting the carbs back to standard settings with a Marshall and then doing plug chops. A Marshall pipe doesn't change things very much usually and you may be able to tune the carbs in fine with very close to stock settings. Plug chops will be the key though.

Plus check your fuel tap can deliver enough fuel at high speed.

[sonnygs1100]

I have a GSX 750 ES -1983.Just mounted a Marschall 4-1,Stock airbox with new originaltype filter,Raised needle 1 step,Stock main jets is 120.Have change main jets from 120 up to 125,But it will still dont rev out properly at high speed.What to do? All carbs are cleaned with solvent and compressed air.

you do know dynojet jet # are different than stock jet # ( so a dj 120 would be a stock 127 )
ps i might have read your thread wrong and i may be stupid lol