I recently picked up a 1974 GT250. So far I have:
-New battery
-New condenser/points
-Points gap set
-Ignition timed
-Carbs rebuilt
-High flow airbox
-Check compression (~115psi)
I'm sure there stuff I'm forgetting. I'm having an issue with with my right cylinder not running right. Its not get nearly as hot as the left cylinder and sounds like its not firing every cycle. The left cylinder have a very steady "pop pop pop" while the right one will be "pop pop *nothing* *nothing* pop". Hope that made sense. There are noticeably more oil droplets being sprayed out from the right exhaust, and it'll bog pretty badly when trying to rev the motor.
I've checked my coils and wires, swapped them while running and no change. I'm still leaning toward timing being an issue, but I've triple checked the timing and everything seems spot on. One thing to note with the timing, however, is that I'm pretty much maxed out on the timing plate. The left cylinder was so maxed out that I had to open the points gap to .018" to get the timing in the right area. Same for the right one.
To me, it feels like a misfire rather than running lean. I know I'm a bit lean because of the custom airbox, but the left cylinder is running okay so I can't imagine its that off.
Any other ideas where I might want to look? Any ideas on why my timing plate is maxed out? Thanks in advance!
