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Only run with Choke

  • Thread starter Thread starter dealjb
  • Start date Start date
D

dealjb

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This is an easy one for you guys. The bike(80 GS1100E) has been sitting in shop for about 7 years. It will fire and run with choke about half pulled but when you give it any throttle it dies out. The prime on the petcock does not work. How do I figure out if this thing is getting enough gas through petcock, or if I have carb problems. Have not pulled and cleaned them yet, but plan to.

Thanks

JB
 
With the petcock set to run, disconnect the fuel line from the petcock and install a fuel line from the petcock into a handy container. Disconnect the vacuum line from the carb fitting and suck on the vacuum line. Fuel should flow in a full, steady stream into the container as long as you're sucking on the vacuum line if the petcock is functioning properly.

Earl


dealjb said:
This is an easy one for you guys. The bike(80 GS1100E) has been sitting in shop for about 7 years. It will fire and run with choke about half pulled but when you give it any throttle it dies out. The prime on the petcock does not work. How do I figure out if this thing is getting enough gas through petcock, or if I have carb problems. Have not pulled and cleaned them yet, but plan to.

Thanks

JB
Click to expand...
 
sounds like you need to clean your pilots. the gs' choke isnt actually a choke, more on an enrichener, and it only works when the throttle plates are closed. thats why it is dying when you give it throttle, its not getting gas from anywhere but the choke circuit.
 
Thanks for the starting point fellas. Had planned to take the carbs down and clean them, just did not know where to start as far as what to look for in them for this problem. Thanks again for the advice.

JB
 
As was mentioned...you must clean the carbs, first and foremost. These CV carbs are VERY lean from the factory and do not take well to sitting. Every passage (see the Carb Cleaning) tutorail, needs to be cleared. Also, make sure the air filter is in and oiled, airbox is tightly sealed, and all clamps on the intakee side of the engine are tight! Good luck.
 
Thanks guys, plan to start the carb clean this weekend. As mentioned before, the bike has K&N pods, supertrapp 4 into1, and as far as I know stock other than that. When I am in the carbs how can I tell if the jets are stock or if a dynojet kit might have been added with pipe and pods. I remember bike was pretty flat on bottom and screamed on top. My stepfather handed this bike down to me about 10 years ago. At the time I was racing motocross, now young kids and so on, but it is time to do this bike some justice and get her back to where she belongs. Not to mention I am craving to ride.
Thanks
 
dealjb said:
Thanks guys, plan to start the carb clean this weekend. As mentioned before, the bike has K&N pods, supertrapp 4 into1, and as far as I know stock other than that. When I am in the carbs how can I tell if the jets are stock or if a dynojet kit might have been added with pipe and pods. I remember bike was pretty flat on bottom and screamed on top. My stepfather handed this bike down to me about 10 years ago. At the time I was racing motocross, now young kids and so on, but it is time to do this bike some justice and get her back to where she belongs. Not to mention I am craving to ride.
Thanks
Click to expand...

A stage #3 kit (if not already done) should fix the obvious problems.
 
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