If the lower body gasket is for a 276 the ID will be too small and effectively block off any fuel to the pilot circuit.......... And the float height will be another one to check.
You should make vacuum points in the manifolds and than with vcuum pressure gauges connectedHello VOC Experts--need some advice
Problem:
Warm or cold idle is not reliable as I come to a stop. On a fast stop even I can experience bike just going dead-but easily re-started thereater. Sitting, the bike will idle generally fine. Trying to set up a reliable idle with New Amal 276's from Coventry
Background:
Series B (2501) with Alton 12V, BTH Mag both <3rs; new replacement 276's with new dual throttle set up and cables. I do notice that my BTH lead cases have become somewhat melted on exhaust fin (cables were to close)...I put electrical tape around the casing damage--could this be the issue as has happened around the time of my new carb install?
What I have tried:
1. Adjust mixture, 2. set throttle stops 3. new spark plugs. (B6's w .16 gap)
What should I try?
Thx so much
Mark