what size of venturies i need

[Anonymous]

I have twin 40's on my 1.3. What size of jets and venturies I need? 26mm or 28mm and 105fuel/170air??

[Anonymous]

Idle Jet 59F21
Main Jet 100
Air Jet 160
Pump Jet 40
Emulsion F47
Choke 28mm
Needle Valve 160
Bleed Jet 0.9

Hope this helps u!!!!

[Anonymous]

same here i got twin 40's and i got 32mm choke venturis and it wont even pull off when its cold u can guess by putting 26mm or 28mm but the only way to get it spot on is to get it rolling roaded let me no how u get on cause i could also do wiv some help but sizes

[Anonymous]

I used 28 and then 30mm chokes on my 1.3 (28mm was the best) and used 115 jets.

I spent over ?200 on setting it up... and it still had SHIT drivablity!

You really need good flow in the head (bigger valves maybe?) and a high lift cam to make these carbs run sweet!

Dec