Main Motorcycle: '68' T120 Bonneville
Join Date: Nov 2007
Location: corpus christi, texas
Other Motorcycle: 2006 T100 Bonneville
Extra Motorcycle: '79' T140 street tracker
I've got a '68' T120 that I put new Amal 930's on. I had to go through my new carbs and clean them out. Seems they aren't too concerned at the factory about castings and flashing being left in the carbs. The old carbs didn't have the air valves (choke) but I had to install them to get the new carbs to work. Even using the ticklers, it will not start or run in cold weather unless I close the air valves. Once started, I have to drive it with the air valves closed until the carburetors are warmed up. Without them it pops and sputters. As it warms, I can reduce the amount of air valve used but it is tricky and changes with different temp or humidity so I usually just run them closed until everything gets warm. I tried different carb adjustments. I had it where it would run and idle when cool but when it warmed up it wouldn't run right. As set now, once everything is warm, it idles smoothly, responds well to throttle and runs clean.
Last edited by jimmy bush; 01-07-2010 at 10:25 AM.
Reason: add stuff.