Triumphrat

no-logic · 09-03-2005

Can anyone tell me which way richens and which way leans the mixture when adjusting the D screws on the bottom of my carbs?

Clifford · 09-03-2005

Hi No-Logic,

Backing the screws out, counter-clockwise enrichens the fuel mixture.

If you don't have a tool to do the job, people are using various things to make them, including .22 shell, M-16 shells, electrical spade lugs, just about anything that can be mashed into the right shape. Reviews of such tools suggest they are short-lived. If you're going to do this much, I recommend the tool made by NewBonneville, it's stainless steel and will last the lifetime of your bike.

CYNCRZR · 09-03-2005

Turning to the right - Leaner
Turning to the left - Richer

They adjust the mixture at idle @ just off idle.

Cyn-

no-logic · 09-03-2005

Thanks Clifford. I have the tool ordered already. And you are right.....the right tool for the job makes sense. To me if you use it a couple of times it pays for itself.

Clifford · 09-03-2005

You're welcome No-Logic.

I had that tool with me when I took my bike to have it dyno'd. I remembered I had it in my pocket and offered it to the tech when he couldn't find anything to fit those screws. He grinned really big and said "This is a really nice tool!". For all of the time and aggravation it has saved me it has paid for itself many times over!

TrumpetPlayer · 09-03-2005

If the screw controlled airflow, instead of fuel flow, we could say "rightie richie, leftie leanie". But, alas, the reality is just the opposite.