My 1979 Bullet with a 500 engine has been running like a champ ever since I fitted the right jets to my Micarb VM28.
I have ridden it about 500 kms with absolutely no issues since I rejetted the carb, installed a power arc CD1 ignition and changed to a modern ignition coil along with a NGK BR8ES plug.
It was really hot yesterday and I rode to my destination for about 40 mins. I turned off the engine, took care of some business for about another 20 mins and returned to the motorcycle and she refused to start. She would fire up but would die instantly when if I opened the throttle even a little bit.
Also I had to wait a couple minutes between kicks for her to fire. If I kept kicking she wouldn't fire.
She finally started like nothing was wrong, after about 20 mins of trying everything. I rode back home with absolutely no issues. She was idling beautifully etc.
Got home, turned her off and couldn't start her again.
I gave up, came back in an hour and the bike is back to being a one kick start.
started no issues this morning, rode her to work, in cooler morning weather. turned her off and she had no issues restarting.
She started easily from cold this afternoon. Rode back home in the afternoon in about 89F weather and once I got home, same issue... she wont start again!!!
let her cool for an hour and she is again a one kick starter!!!
I have no idea where to start looking. I am still a novice at this stuff and dont know how to trouble shoot.
This is not an electrical issue cause she starts when cold.
All the wiring is brand new, battery is brand new and is showing about 12.6V, charging system is fine. Regulator output shows about 14v at 3000 rpm. Ignition coil is made by power arc so is the optically controlled ignition system. Timing has not changed either.
Does anyone know where to start looking?
thanks in advance.
you can see my motorcycle at:
https://www.youtube.com/watch?v=9xsPNDiYnp4