View Full Version : what size of venturies i need
Anonymous
15-01-01, 12:29 PM
I have twin 40's on my 1.3. What size of jets and venturies I need? 26mm or 28mm and 105fuel/170air??
Anonymous
15-01-01, 03:36 PM
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
15-01-01, 04:38 PM
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
15-01-01, 09:07 PM
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
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