T: Fuel Tank Jetting Big Bore Comet

[ernie]

What main jet would one recommend for a 636cc Comet with 36mm Mikuni carb? 8:1 c/r and probably standard ish cams.

 

[vibrac]

I have always found Allen Carburettors settings spot on except the pilot may need to move up or down one size
they have always given recommendations freely good luck with 36mm in my opinion thats a bit big for road use in real money its a nats c**k under the Grey Flash TT machines!

 

[ernie]

They say 310 for a 36mm, 260 for 34mm and 200 for 32mm. Does that sound right?

 

[vibrac]

They say 310 for a 36mm, 260 for 34mm and 200 for 32mm. Does that sound right?

sorry Ernie only one in my notes is 155 for 28mm dave@allensperformance.co.uk

 

[Comet Rider]

Hi Ernie,
On my 90 bore Comet I'm running a 220 on a 34mm Mikuni VM round slide

Neil

 

[Vincent Brake]

I will look mine up , monday Ernie.

 

[Martyn Goodwin]

They say 310 for a 36mm, 260 for 34mm and 200 for 32mm. Does that sound right?

Hey Earnie - Hope all goes well with your personal 're jetting' project.

Regards

Martyn

 

[Upstreeter]

I run a 35mm Mikuni on my 636cc Comet, and as you say Allens were very helpful. It's all so long ago that I can't remember the details but I think they said to jet as if it were for a Gold Star...