A good Sunday

As Ron knows I do not give up easily on these BMW bikes. I decided this morning, to go back under Paul's suggestion and take a second look at the timing under full advance.

I pulled the front cover off (after disconnecting the battery), and decided to lube the advance unit, and clean it up. I then went for a 10 mile ride, at this point came back and did realize that under full advance my timing was around 2800 rpm. I rotated the base plate, and got the advance to hit 3000-3100 at full advance. After doing this idle was a bit low, I carefully adjusted the idle stop screws, and put the gauge on the vacuum ports. It is now running at 1K dead on, after full warm up.

I put the bike back together, and went for another ride, WOW, my power is back, takes off like a banshee, not stumbling, no pinging. My needle jets are set to position three. I got the Bing book, and will check jet and needle sizes during next carb sync, but for now, the bike is running good. When I got back I adjusted the throttle cable just a smidgen, under the gauge, and went for a five mile ride, the bike got even smoother.

At this point with old cables, and carbs that probably need work, I think my R75 is tuned as good as I can get it without more help. She is running good, I will see what kind of gas mileage I get under this setup.

I started to sand and prep the side covers I received from Ebay. I will have to get me some bungys My stock air filter is on order along with the missing valve cover stud/special nut.