Hey all. First post on this forum. Hopefully it makes sense.
Bike Info: Bike is a 1975. I rebuilt the entire engine myself. Running stock alternator with a Boyer electronic ignition. Kick start only with a lithium ion battery. Rebuilt the carbs, new fuel lines with inline filters, and rebuilt both petcocks. Am still breaking in the engine. Currently have just over 100 miles on it. Probably missing some info so just ask if more is needed.
Problem: Bike has run perfectly for 100 miles and then one day I was riding around town when I suddenly couldn't accelerate past 3500 rpm without the bike coughing and bogging down like it was low on fuel. Thinking this was the problem I rode to a gas station and filled up. No change. So I rode home keeping it under 3500 rpm. The next day I started it up and revved it past 3500 rpm and it revved fine and steady. No coughing or bogging down. So I took it out again only to have the issue show up again.
My thinking: Seams to be an issue only when the bike is in gear. The issue seams to affect both cylinders at the same time. I am running Uni air pods so air flow should be fine. I have made sure fuel is getting to the carbs. Both carbs have been cleaned and rebuilt and I find it hard to believe both carbs would get clogged at the same time. Could it be an ignition problem? It idles fine/runs at low rpms fine so ignition is working at least some what correctly.
I am pretty stumped as to what the solution could be. Wanted to see what anyone here had to suggest before I go tearing into the bike.
Bike Info: Bike is a 1975. I rebuilt the entire engine myself. Running stock alternator with a Boyer electronic ignition. Kick start only with a lithium ion battery. Rebuilt the carbs, new fuel lines with inline filters, and rebuilt both petcocks. Am still breaking in the engine. Currently have just over 100 miles on it. Probably missing some info so just ask if more is needed.
Problem: Bike has run perfectly for 100 miles and then one day I was riding around town when I suddenly couldn't accelerate past 3500 rpm without the bike coughing and bogging down like it was low on fuel. Thinking this was the problem I rode to a gas station and filled up. No change. So I rode home keeping it under 3500 rpm. The next day I started it up and revved it past 3500 rpm and it revved fine and steady. No coughing or bogging down. So I took it out again only to have the issue show up again.
My thinking: Seams to be an issue only when the bike is in gear. The issue seams to affect both cylinders at the same time. I am running Uni air pods so air flow should be fine. I have made sure fuel is getting to the carbs. Both carbs have been cleaned and rebuilt and I find it hard to believe both carbs would get clogged at the same time. Could it be an ignition problem? It idles fine/runs at low rpms fine so ignition is working at least some what correctly.
I am pretty stumped as to what the solution could be. Wanted to see what anyone here had to suggest before I go tearing into the bike.