1977 GL1000 Carb Issue?

imported post

Hi Folks, I have been a member of this forum since I got my 1977 GL1000 this last winter and have learned a lot from your how to`s and doing my own maintenance.

The GL I got is in excellent shape with 51K on it and it did not sit for long periods at a time and was under cover it`s whole life and most maintenance was performed. Here is what I did, changed plugs,synchronized carbs, new belts where on it when I got it and came with a dynaS ignition. I did run some MMO threw the carbs and sea foam later.

So here is the problem The bike runs great until it reaches operating tempature and when I come of the throttle fast ,say at a stop lite the idle drops down below 500rpms and some times it dies. I restart and it idles fine until the next stop I make. When sitting on center stand I rev it to 4K and come off the throttle and it dies, I rev to less than 4K and come off the throttle and it goes back to the 1000K idle no problem. Seems to do this only when at operating temp. I changed fuel filter and no change, I synchronized the carbs again and they are almost perfect as you can get with that but no change. it does not stop me from riding but it is a hassle to restart at stop lights. Iam thinking it might be the idle jets but really do not know much about these carbs. By the way I get about 40mpg. I would appreciate any suggestions to cure this problem.