Can somebody take a look at these engine pieces and make sure they are all the correct ones for each other?
Engine: A65 '62 Star
Inner cover: Choice A: Choice B:
Primary Cover: Choice A: 68-240 Choice B: 68-720
i am having a hard time finding where the clutch cable enters the case. The bike that i am comparing the parts to ('67 a65 lightning) has the cutch cable going into the outer cover, but mine doesn't have the hole. There is also different places for the tach cable on the inner covers? one has the hole on the end, and the other has it on the bottom. I'm not sure which one to use.
Also, is there a difference to the primary covers? What is the extra hole for?
Flip the clutch lifter arm over and you will see the hole for the cable. On case covers, match the screw holes and dowel locations between the two. The tach drive is off the end of the oil pump. There will be a boss on the inner cover if it was available that year. The drive off the bottom is for the earlier speedo drive off the layshaft. Later bikes had the speedo gearbox on the rear wheel. I believe the extra hole was for adjusting the clutch springs but not sure if it was only for the four spring clutch (later engines have three springs).
Thank you so much for the info. My son and I will look at them in the morning to see what you are talking about. @Rickman, I think we have a couple of choice A Primary covers, I'll send photos of the ones we do not use. OK, I think I see the hole in the inner cover for the clutch cable. It was making me crazy.
We have 4 engines that we can choose from. i started a thread in the British Motorcycles General forum, I am trying to figure out how to get it moved here.
Randy, Very nice project for you and your son. The engine itself seems to be very unique. The low number. The HC might mean High Compression. Primary cover correct choice would be A. Funny enough I need primary cover B for my 66 Thunderbolt, if you would part with it. Yes inner cover is B, should have the speedo drive. The speedo drive ration is noted on a riveted disc on the inner cover. To me this is a very interesting BSA 650 Star with a nacelle mounted head lamp and speedo. The speedo itself is unique chronometric. An accurate restoration would be very nice to see.
I live in San Luis Obispo, if you need any advice or help let me know.