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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Jimbenge on November 11, 2017, 10:36:04 PM
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I have a 1985 K100RT EML sidecar rig that I have owned for over 20 years and it has a little over 200K miles on it but only about 60K on the current engine. I have not been riding much in the last 3 or 4 years and now when I start it, it barely starts and when it does it idles very slowly and if you give it a little gas it tries to stall, if I baby it along for a few minutes it will eventually start running fairly good with full throttle response. It usually ruins fine after that until it cools down and sits for awhile. I have it apart right now and was planning on sending the injectors off for cleaning thinking that maybe that is the culprit because it has not been used much lately, but it acts like low fuel pressure until warmed up ? bad fuel pressure regulator ? its been doing this for a quite a while but seems to be getting worse. Any ideas would be appreciated Thanks in advance
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First thing that came to mind was the injectors. If anything is restricting their flow it makes sense that the mixture would be too lean when the throttle is opened when the engine is cold.
As the engine warms up it requires less fuel, and at the same time the pintles in the injectors could be loosening up so that as the engine requires less fuel the injectors begin to deliver more and everything begins to work properly. I think that we all agree that the idle engine is subject to fuel varnish gumming things up.
It might be time to dump a bottle of Techron Fuel Injector Cleaner in the tank and doing an Italian tune up. It can't hurt.
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First thing that came to mind was the injectors. If anything is restricting their flow it makes sense that the mixture would be too lean when the throttle is opened when the engine is cold.
As the engine warms up it requires less fuel, and at the same time the pintles in the injectors could be loosening up so that as the engine requires less fuel the injectors begin to deliver more and everything begins to work properly. I think that we all agree that the idle engine is subject to fuel varnish gumming things up.
It might be time to dump a bottle of Techron Fuel Injector Cleaner in the tank and doing an Italian tune up. It can't hurt.
I had to look that up as I've not heard of one.
"An Italian tuneup usually refers to a process whereby a motor vehicle engine is run at full load for extended periods in order to burn carbon buildup from the combustion chambers, spark plugs, and exhaust system. It is performed after a traditional tuneup and often accompanied by an addition of fuel system cleaner to the fuel tank."
:clap:
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An Italian tuneup. . .
F I A T!
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fix
it
again
tony...