I just googled “bmw airhead /5 rocker end play”, and Snowbum’s info on this topic pops up. I would get a cup of coffee, a comfortable chair, and read ...

On my ‘78 /7, I think the little clutch switch has been dis functional more than functional over it’s 45 years. I just live with it when it quits. Fin...

Valve noise is ever present with these engines. I agree with Richard, don’t set the clearances tight to try to reduce noise. The clearance is too impo...

So, occasionally the starter will not operate? Does the neutral light also not work at the same time? Curious. So, if you fiddle with the shifter an...

Sounds like one excellent tech session!

I have zero R65 experience, but I know on most (all?) airheads, getting the neutral switch out with the transmission in place can be a task. My unders...

Excellent!

As a starting point, you can go to bingcarburetor.com, then select “Motorcycle CV - type 64 & 94”, then near the bottom of the page there is a dow...

If I recall correctly, the depth at which the seal is installed is important. I think it can be driven in too far. According to Snowbum info, the seal...

Bridgestone Battlax BT46 tires are available in the classic original sizes; 3.25x19 and 4.00x18 (H rated), and would probably be a great choice if you...

Curious if you got this figured out. What was the problem?

Do you mean Siebenrock 1000cc cylinders/pistons (not heads)? Seems consistent on all 4 valves? Are there spacers at the cylinder bases that ma...

I just went through this exercise purchasing a set of BT46’s. On the Bridgestone website, the info chart for the BT46 tires (most likely all of their ...

I’m not familiar with the plumbing on your bike. On my ‘78 /7, the breather plumbing dumps into the intake elbows, avoiding the air filter element its...