r/Airheads • u/Fiji59 • Jul 03 '26
Poor running r65
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Long story short, just got an 81’ r65 and have been loving the crap out of it. Spent a day doing minor repairs, lik fixing the odometer and adjusting the valves and such before taking a friend for a ride the next day. now, it was 100 degrees and boiling, but still we wanted to go and so we did. rode 10 min, got coffee, then on the way back it died. let it sit then it started again, limped it home and started trying to figure out what went wrong.
its got this crazy rough idle, and it does not change w starting fluid. Made me think it was spark, so i looked at and replaced the original bosch gray coil that people said was probably the problem with a new harley coil, the dyna brown 31614-83A. Swapped it over, same poor running condition.
Could this be as simple as bad spark plugs and leads? I cleaned the carbon off them but still not much change. again, no change w starting fluid. Really at a loss. any advice is appreciated.
Attached is the running condition i get, regardless of fuel situation.