Triumphrat

06-11-2006

Gentlemen: HELP!!! I would like to ride again in my lifetime!

Problem:Starts with choke on and half throttle but stalls after choke is released.After a while will keep running(with choke off) if throttle is at least halfway but stalls when released.Very noticible loss of power when finally moving in first gear but stalls when throttle is released.I have a new battery,new plugs and points are correctly set.I disassembled the carbs to find a hard powdery beige substance caked on in both carb bowls(more in the right carb than the left).Cleaned both carbs,main jet and all fuel lines.Floats look good.Both carbs thoroughly flushed. Is there anything I have overlooked?I am not a great mechanic so any advice(very thoroughly and SIMPLY PUT) would be greatly appreciated(Adjustments to cables,screws etc.) Bike has approximately 16K miles on it.I have had the bike since 1972 and this is the first time I couldn't get her going.Thank you in advance for your kind help.

John

06-12-2006

All my carb experience has been with Keihins & Kawasakis, but I suspect the similarities outweigh the differences & this is probably valid for the old Brits as well...

I believe the main jet is usually in use from about half throttle to full throttle. Less than half throttle & you're talking about pilot jets or slow jets. I ain't saying that's the answer for sure, but maybe you just need to clean the other jets? Maybe get some thin guitar strings & poke 'em through all the little holes in the carbs?

HTH,
-Kit

Slinky · 06-12-2006

Just what I was thinking- blocked up primary circuits.

You should really ask this in the Classics Vintage and Veteran forum, that's where all the old bike gurus are to be found.