I have someone who is intersted in buying the bike but is intimidated by the rattle.
Regarding tuneup I checked the point gap and timing. Both were right-on. Carb sync is not checked. I cleaned the carb and orafices in the bowl area with carb cleaner and air compressor, plus installed new goodies in the float bowl and o rings in the air mixture screws. However, I did not touch the sync screws.
The bike runs strong and idles smooth at no less than 1100rpms. Lower rpm idles rough and stalls. I have no idea whether carbs are in sync. It looks like plugs and wires are OEM. I cleaned plugs from 1 and 4. 2 and 3 were too hard to reach.
If I drop the pan what am I lloking to find that is a problem? How will I know a problem when I see it?
Is the chain tensioner adjustable? What is that thing below the carbs between 2 and 3 cylinders. Is that where the cam or primary chain is adjusted? If yes, which way should I turn it == clockwise or counter . . . .?
What do I do to get rid of the chain slack causing the rattle?