Too Lean or Too Rich
Posted: Tue Nov 01, 2022 5:03 pm
Problem:
Currently when starting my bike it will start. Then it immediately revs so high it will redline in less then a second of being started so I will hit the kill switch so as to not kill the engine.
Background:
Originally it would not run at all. started by tearing apart and rebuilding carbs. in this process noticed a couple parts which definitely needed replaced. First of which was a float needle in just one of the four carbs so I replaced them all. I then made sure to test the heights of all the floats to make sure they were in spec. I also chose to replace the carburetor intake boots, they were not awful but I was concerned about air leaks so I just replaced them.
After rebuilding everything the bike turned over wonderfully. It was just the idle was extremely rough at low RPM. I could ride it down the drive just fine shifting nicely but then when I came to a stop it would shut off. I was interested in it seeming like maybe it was running a little rich, I noticed that the pilot jets were set as #20's and was not concerned as this seems to be a pretty common mod so that you wouldn't have to run the bike as long before getting on and going, but just incase this was my problem I switched it back to what i believe is stock #17.5. This is when I'd start it up and it would immediately redline.
Would love any suggestions, Please feel free to ask any questions of things you would like clarified.
Currently when starting my bike it will start. Then it immediately revs so high it will redline in less then a second of being started so I will hit the kill switch so as to not kill the engine.
Background:
Originally it would not run at all. started by tearing apart and rebuilding carbs. in this process noticed a couple parts which definitely needed replaced. First of which was a float needle in just one of the four carbs so I replaced them all. I then made sure to test the heights of all the floats to make sure they were in spec. I also chose to replace the carburetor intake boots, they were not awful but I was concerned about air leaks so I just replaced them.
After rebuilding everything the bike turned over wonderfully. It was just the idle was extremely rough at low RPM. I could ride it down the drive just fine shifting nicely but then when I came to a stop it would shut off. I was interested in it seeming like maybe it was running a little rich, I noticed that the pilot jets were set as #20's and was not concerned as this seems to be a pretty common mod so that you wouldn't have to run the bike as long before getting on and going, but just incase this was my problem I switched it back to what i believe is stock #17.5. This is when I'd start it up and it would immediately redline.
Would love any suggestions, Please feel free to ask any questions of things you would like clarified.