Electronic ignition
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,590
Likes: 3,358
From: Cental, MI
Not trying to steal thread but have similar problems with my new-to-me 78 FXE with Super E. Seems to be running rich. I'm at 5300' with .028 int and .072 main jets. Finally tuned to where it runs OK but still sooting the plugs. Idle mix only 1/2 turn out from seated which indicates too large int jet but before I do that I figure I better check for intake leak. Everything looks and feels tight. What is the best way to check?
Seasoned HDF Member
Joined: Oct 2007
Posts: 8,852
Likes: 2,493
From: Decatur, Alabama
Thanks for the reply. I am going to try and make a long story short. LOL. I bought the bike on 1990 with about 10000 miles. It was converted to points and had a SU carb. I changed to super E and kept the points system and have put about another 10000 miles. I parked it in '05 and it was running good. I have pretty much gone through the bike and replaced oil lines, fuel lines, filters, weights and points, electrical wiring and connections where need, starter, solenoid, oil seals, spark plug wires and etc. The original owner told me he bought it new and has never cracked open the heads or tranny. I have spent the last 5 months working on it and am just now getting it running. Amazingly, no oil leaks. At first, and with some guidance with timing from you, it's running good. Now after about 10 miles of travel and the bike warmed, it's cutting out on high throttle. I checked the gap on the plugs, points, timing again. It still in tolerance. I removed the gas tanks and thoroughly cleaned them again to make sure of no fuel problems from them. The motor sounds solid. Front cylinder compression: 115psi rear cyl: 120 psi.
Pushrod adjustment good. The spark plugs look like they maybe running a little rich. Gonna go through the carb setup again and see if that helps. I can't seem to put a finger on it. When I first start the bike, cold or warmed up, it starts right up. ????
Pushrod adjustment good. The spark plugs look like they maybe running a little rich. Gonna go through the carb setup again and see if that helps. I can't seem to put a finger on it. When I first start the bike, cold or warmed up, it starts right up. ????
carl
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