Valve Clearances 84 R100 RT

[gfdunn]

Howdy, I have a dreaded Haynes manual and from what I can tell it is telling me that my intake clearance should be .10mm cold and the exhaust is .20mm cold. Since I have been told not to completly trust some of these after market books can anyone direct me to the correct clearances setting for the valves? Until I get a solid manual?
Thank much guy's.

Catfish

[Manfred]

Howdy, I have a dreaded Haynes manual and from what I can tell it is telling me that my intake clearance should be .10mm cold and the exhaust is .20mm cold. Since I have been told not to completly trust some of these after market books can anyone direct me to the correct clearances setting for the valves? Until I get a solid manual?
Thank much guy's.

Catfish

Those are correct. Clymers and many old timers confirmed it for me last week at a Tech Day :-)

[co_g30]

two things....

first, the feeler gauge thickness mentioned are correct for my 1987 R80 which I believe is similar to your motorcycle's engine.

second, might I suggest you peruse snowbum's highly informative site on Beemer Airheads: LINK (http://bmwmotorcycletech.info/)
the site can be a bit overwhelming but it does have a search functionk....search for "valve adjustment".

ok, one more: if you're wondering when you have the "right clearance" and achieved the "slight dragging" sensation thereof, I know I did for the longest time, I recently found a quantifiable way: No More Guessing (http://redlegsrides.blogspot.com/2009/03/finally-no-subjective-slight-drag-when.html)

[Manfred]

CO,

Good advice on your blog about using the next fatter gauge as a check for being too loose. I've nearly always done that. Good to be reminded.

[gfdunn]

:wave Thanks brother men. Here we go

[sumran]

I run mine at .20 mm and .10mm. I have talked with many that prefer a bit more clearance on the intake (.15 mm). I have found it helpful to be very consistant with the tools used and the method.

On your machine it is especially important to keep a log of you adjustments and quantify the amount of adjustment that is needed. That way you can determine if you are having any issues with valve recession. Until you verify the valves are stable, you should check them often.

I started out checking mine after 1,000 miles. I did not get any movement until 7,500 miles and that was very little on the exhaust valve. Mine is a 1980, so it was made with different valve seat material. Now I check and /or adjust every 5,000 miles.

That is more than you asked for. Hope it is helpful. Others will have different ideas.