How does BMW change spark plug ignition timing?
Single spark plug BMW Airhead motorcycles BMW changed the markings on the flywheel to retard ignition timing to avoid pinging. Instead of 9° before top dead center (BTDC) of ignition advance at the “S” mark and 34° BTDC at the “F” mark, they reduced both by 3°.
Why is MY BMW airhead motorcycle not starting?
The voltage should not drop under 9 volts (preferably 10+); the engine of course will not start. Immediately move the positive lead of the voltmeter to the starter terminal; since this would require another hand, either have a buddy there helping you; or, re-do the procedure, again with 2 seconds ON.
Why was the r100r engine changed in 1977?
Gasoline was changing with the removal of tetra-ethyl lead so octane was becoming lower. The higher compression (9.5 : 1) design of the R100S, RS and RT engine introduced in model year 1977 meant detonation, or pinging, could occur without higher octane fuels.
Are there any problems with the BMW starter relay?
Wrong relays installed. On early models, the starter relay and the horn relay may look identical, but mixing them up will cause a multitude of problems. See SI 61 002 77 (1035R) of BMW Munich, Sept. 1977. Starter relay, BMW number 61 31 1 243 207, Bosch 0 332 014 118.
When did the BMW R100GS motorcycle come out?
BMW R100GS – Motorcycle Classics | Exciting and evocative articles and photographs of the most brilliant, unusual and popular motorcycles ever made! Introduced in 1987, BMW’s patented Paralever suspension works wonders on the GS. The single shock makes rear wheel removal a breeze.
How tall is the seat height on a BMW R100GS?
At well over 500lbs with fuel and oil, and a seat height of 34.5 inches, this is a big, heavy motorcycle, and it takes some effort to roll it off the centerstand. The engine fires with the expected lurch to one side, then settles to a rocking idle.
When to replace haul sensor on BMW R1100?
If I owned a R1100 or R850 with over 75,000 miles I would immediately replace the Haul Sensor as a preventive measure. It doesn’t take long in a hotel and with a recovery charge to pay for the $250 Haul sensor and labor if you have to have someone else replace it for you.
What was the original name of the BMW r80g / s?
The R80G/S was also a sales success, especially in Europe. But BMW was already planning an updated model. Several factors came together to create the R80GS and R100GS. First, the original “G/S” designation (“gelande/strasse,” or terrain/street) implied the bike was intended for off- and on-road use.