One factor involved is the crankcase ventilation system. I’m not sure of the configuration used for your bike, but it likely dumps into only one of th...

@16813 hi Mike, I have the same spring/ball bypass valve in my ‘78, so I’m sure it’s in yours, also. When my filter is out, I inspect the valve and t...

Greetings from way down in south Texas. Don’t get to meet many folks from Idaho! Glad you found a way back to airhead ownership. My cylinder heads w...

P.S. - Minor typo - BMW bars are 22mm, just short of 7/8”.

I purchased a set of the Biltwell Renegade’s, 7/8”. Installed them today. Clutch side was very typical. Throttle side was quite challenging! Took som...

Don’t want to “hijack” this thread, but, this got me thinking about my sorry old grips. My bike is a ‘78 R100. What is the correct grip size? Is it ...

Wow, never seen one of those. Is that supposed to draw heat up out of the oil? Is there a liquid inside that helps convey the heat? V..e..r..y inte...

Hello, Mark! From way down in south Texas. Good luck setting up your shop.

@13780 well, I found it; “The Cat” (being referred to here) is a high speed ferry that operates between Nova Scotia and Maine.

@16813 ok, I’m curious, what is “the cat”?

@edward-silverman hello Edward. I’d start a new forum topic with your question. Folks may not see it here.

I’m planning on attending the “Hill Country Hangout” in Kerrville, TX (just NW of San Antonio) on April 19 & 20. It’s an MOA sanctioned rally put ...

@16813 hello, Mike

I’m 68 these days. The airhead I ride I bought when I was 25. I don’t think I could part with it. We have covered a lot of miles together, and venture...

This thread by Eric is titled “1978 R100RS … “