Forum bmwbike.com

Try retarding the ignition timing a little and see if it would help without any adverse effect.

Janardhana Rao.

I do not know Spanish. About the thermostat, I can explain that it functions as follows as applied to the liquid-cooled automobile engines. Most of the motors of cars are water cooled / radiator assisted. The engines are designed to work efficiently at about 90 degrees Celsius. The atmospheric tempe...

Flashing the generator means momentarily touching battery live wire to the field terminal. This restores the residual magnetism in the field circuit which is essentially required for the generator to buildup voltage to start charging.

Janardhana Rao.

There is no difference in the quality of brake linings/brake pads as used on cars or motorcycles. If there is any quality improvement in the material it applies to both.

Janardhana Rao.

I did not measure the temperature of the engine as such, but I know it is overheating from the smell of the oil and the silencer turning black. Since my machine is manufactured in 1959 end, I presume all the modifications done to this model must have been incorporated. I am located in India where th...

I have restored an R26 very recently. I find the engine is overheating. To the extent I could visualize I checked all the points that may cause overheating problem. I checked the ignition system with a Bosch tester The timing is correct and the ignition advance is functioning as it should. I have us...

Hi Gerry, I have put back the R 26 gear box and I am assembling the engine to day. I haven’t faced any difficult problems. As informed earlier this is the first German motor cycle I am handling. Unfortunately this machine was opened and serviced by some one that is not knowledgeable. This is causing...

I am restoring a single cylinder, four stroke R 26, BMW engine. I find its piston has a offset piston/ gudgeon pin. The vertical centre line of piston is slightly offset compared to centre line drawn vertically through centre of piston/ gudgeon pin. The piston is greater on one side as seen from the...

When I wanted to de-carbonize my R26, I noticed that it has got a piston with an offset piston pin (gudgeon pin). I would like to know the theory behind providing offset piston pins. In the R26, in which position should the piston be located? I request detailed guidance in the matter. Thanking You, ...

Thank you very much.

Janardhana Rao.