burnszilla
New member
My K75S was serviced at Ted Porter's Beemer Shop yesterday. New front tire, valve adjustment and throttle body sync. 117,000 miles on the odometer. Ted found a problem with my exhaust valves...
Valve specs: Intake: .006 - .008 Exhaust: .010 - .012
My K75S: Intake: .007, .007, .006 Exhaust:.005, .008, .014 (before adjustment)
Exhaust shims on #1 and #2 are thin at 2.2mm and 2.1mm.
The previous valve adjustment 15K miles ago, the exhaust valves were way out too.
Something was wrong, so he did a compression test.
#1: 70, #2: 110, #3: 125 ... not good
Also found an air leak on #2 throttle body.
Next week he's going to do a full leak down test to see where the problem lies.
His guess was that I needed a head job with the valves replaced.
Costing around $1100. Ouch.
A while ago I did something stupid. I rode for about 3 days with my high altitude loop switch on, until I noticed it was on. Arrgh! Could the engine running lean have caused all this damage?
After riding my 87 K75C I notice how much better the engine performance is on the C than on the S. The S has a lumpy idle and is not as peppy.
Valve specs: Intake: .006 - .008 Exhaust: .010 - .012
My K75S: Intake: .007, .007, .006 Exhaust:.005, .008, .014 (before adjustment)
Exhaust shims on #1 and #2 are thin at 2.2mm and 2.1mm.
The previous valve adjustment 15K miles ago, the exhaust valves were way out too.
Something was wrong, so he did a compression test.
#1: 70, #2: 110, #3: 125 ... not good
Also found an air leak on #2 throttle body.
Next week he's going to do a full leak down test to see where the problem lies.
His guess was that I needed a head job with the valves replaced.
Costing around $1100. Ouch.
A while ago I did something stupid. I rode for about 3 days with my high altitude loop switch on, until I noticed it was on. Arrgh! Could the engine running lean have caused all this damage?
After riding my 87 K75C I notice how much better the engine performance is on the C than on the S. The S has a lumpy idle and is not as peppy.