Mx615
01-12-2023, 10:51 PM
Hey all! Noob here. I don’t own a trike but am working on a 79 commuter te390 for a friend of mine.
He said he was riding it in his driveway and it just died and wouldn’t start back up. Convinced he blew the motor, he pulled it out of the chassis. Enter, me. I took the engine to my house and found the key way on the flywheel to be broken. I put a new one in and that is good to go. I hooked up a battery and turned it over, only to witness something I had never seen before. No spark while cranking the engine, until I release the key, at which point it will spark once usually, sometime 2-3 times before the motor stops spinning. Someone was in here messing with the wiring, as there are naked terminals, terminals with clips but no wire coming out of them. I tried to upload pics but was unsuccessful.
I’m curious if any of you have any ideas where to start. I’m going to test the key switch by bypassing it. After that, I’m kind of at a loss. Bad ground? Bad coil? Points? Does anyone have a wiring diagram for this beast?
Please help! Trying to get this thing done so we can rip it on the ice before it’s gone.
Thanks in advance!
He said he was riding it in his driveway and it just died and wouldn’t start back up. Convinced he blew the motor, he pulled it out of the chassis. Enter, me. I took the engine to my house and found the key way on the flywheel to be broken. I put a new one in and that is good to go. I hooked up a battery and turned it over, only to witness something I had never seen before. No spark while cranking the engine, until I release the key, at which point it will spark once usually, sometime 2-3 times before the motor stops spinning. Someone was in here messing with the wiring, as there are naked terminals, terminals with clips but no wire coming out of them. I tried to upload pics but was unsuccessful.
I’m curious if any of you have any ideas where to start. I’m going to test the key switch by bypassing it. After that, I’m kind of at a loss. Bad ground? Bad coil? Points? Does anyone have a wiring diagram for this beast?
Please help! Trying to get this thing done so we can rip it on the ice before it’s gone.
Thanks in advance!