Had a lot of issues in both bar switches, key switch, starter solenoid and wiring in the headlight bucket all which are now corrected.
Set timing with a dial indicator. Runs Great. Just not charging.
Armature/Commutator ohm out correctly at 5.and not shorted.
New brushes in stator.
Stator shunt field coil (F to A) ohms out at 4.9. Calls for 4.9-5.8.
Stator series field coil (M to A) Ohms out at .2. calls for .013-.014.
I’ve been thinking about rebuilding the engine on my 1973 CT3 175. I feel I can do it myself, but if there anyone (affiliated with this sight) that would be able/willing to do it I would be happy to pay for all parts, labor & shipping, etc..
Hey thanks for that video, I have the exact same problem, maybe worse, and I just sent my cylinder off to get bored and honed to the 0.25 mm o/s.
I just had my carburetor rebuild on my 1973 CT3. It fires up first kick and starts off strong. It seems to bog down when it gets close to red line. Especially when I’m going up a hill. It kind of sputters right before I’m about to shift. Does anybody think this could be just a simple adjustment on the carburetor?
That’s good news Dave. Thank you very much and I will ride on until you hear from me again. Blessings out to all of you.
I was wondering if the “Yamalube 2S” is a good/recommended to stroke oil for my 1973 CT3. I just rebuilt the carburetor and freshened up the whole bike! I’m ready to launch it fresh and wanted to start off in the right direction.
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Hi Rich.
Try running an earth cable to the motor see what happens, and also how's the battery? My AT 1 had the following symptoms.
Would start on the button after Struggling to turn over then started.
Horn wouldn't work at all.
Lights dim.
Neutral light pretty good.
Then nothing on the button to start.
It would start by kicking.
10.9V at the battery terminals, ignition on dropped to9.7V, hit the button 4V.
Acid level okay.
Whipped the battery off and trickle charged for 30 hrs ish. Re fitted all problems vanished. Just starts instantly not even spinning over.
Just an idea or two chief.
Shyted