1995 K75 29K miles in Edenton, NC. VIN WB1057100S0135357
This is a rather long story which I will try keeping as brief as possible.
A few weeks ago the fuel pump started making a whining noise which stayed the same tone at any RPM. Also, the engine “bucked” sometimes as if it had bad gas in the tank (which it had not). I replaced the Mahle fuel filter which had 7,600 miles on it. It was almost impossible to orally blow through the filter. With the new filter in place the whining noise was gone but came back after about 500 miles. I then replaced the 11,000 mile old fuel pump with a Quantum HFP-439. The engine started and quit right away because of a blown fuel pump fuse ( I have no clue why) which I replaced and has not blown since.
The problem remained in that every time it starts immediately but cuts out in less than one mile. I can then restart and it will keep running, although very rough, at RPMs under 2000. When fairly cold in neutral I can rev up to redline (which I don’t like to do) however, after it has quit on me with a warm engine it will go to 6000 RPM and then go down to 1100 RPM with the throttle in the same position.
In the meantime I also replaced the fuel hose and the sparkplugs. When I press the starter button the fuel pump, without the hose on it, will squirt fuel several inches high. Again, it always starts without hesitation but shortly after that the problems begin. A co-member of Motobrick in Texas has helped me tremendously with useful suggestions but so far we have not solved the problem.
I sure would appreciate any advice, suggestions, ideas you can give me. Thanks in advance.
Peter