@14517 The correct cap, spring, and ball are chosen by ordering your parts from the correct year parts manual. I used Max BMW's on-line parts fiche sy...

Start by buying a new spring, ball and cap. Then grind a screw driver tip to have a parallel blade, and have it precisely fit the slot in the new cap....

Well there's the issue right there. You should be running Bing carbs, not Wyoming carbs. ? It's most often debris introduced from an older fuel...

Those new tires is where we have to start. First thing to do is chock up both wheels off the ground, either singly or together. Here's some tests you ...

@14517 Apologies if I offended. I hoped it was obvious to you, but I couldn't be sure due to the order of listing. Didn't know if that was some kind o...

Agreed !

► If the adjuster (under the fork crown) will not move (loosen or tighten), then it is frozen in-place due to LocTite, rust, or some other impediment....

IMHO, Airhead valves tend to tighten due to valve seat wear. As the valves recede into the valve seat, the valve clearance closes up. This is not shod...

Removing metal from the new crank may change the balance of the crank and therefore add vibration to your ride. Don't do that !

Good ideas... predicated on the idea that the rider carries a patch kit or spare tube, and is practiced at using tire tools. ?

Good results. Congratulations.

Ah, so that's what your previous comment meant. I understand now. Forgive me, it's been several years since I worked on a points ignition. The wire...

Dan - And what about the "test jumper" to eliminate the possibility of a bad wire ?

• One more test... I don't trust the points to do their job. They could be incorrectly gapped, still dirty, or other issues. So (ignition ON) I poke a...

► An easy home test is to 1) check and refill the water level in all cells, then 2) trickle charge the battery at (hopefully) less than 1A for 1/2 day...