Re: bing carb body scoring
Posted: Sun Aug 12, 2007 11:39 am
this is the third bike this has happened on... pulled the slides and found them scored... somewhere i read about re-sleeving the bores in the carbs but that seems extreem. the problem went away in the other two bikes eventually after sanding the bores and the slides, but the whole thing remains a mystery. am i the only one out there that has this problem? any help?.... jim
Warping of the carb bodies over time, causing binding of the slides and galling of the bore, is common. Some blame over-tightening of the flange nuts.
I have sanded one slide twice in three years on a friend's bike, and just sanded one slide on my own bike last month. In these cases, when the carbs were removed, the nuts were not very tight at all.
For about $75 per carb, Triton will true the bore and put a brass sleeve on the slide. http://www.tritonmachining.com/
This results in perfect action and no galling, but I have not heard how permanent it is. If the carb body is really the culprit for deforming, it would seem that the problem could happen again.
Warping of the carb bodies over time, causing binding of the slides and galling of the bore, is common. Some blame over-tightening of the flange nuts.
I have sanded one slide twice in three years on a friend's bike, and just sanded one slide on my own bike last month. In these cases, when the carbs were removed, the nuts were not very tight at all.
For about $75 per carb, Triton will true the bore and put a brass sleeve on the slide. http://www.tritonmachining.com/
This results in perfect action and no galling, but I have not heard how permanent it is. If the carb body is really the culprit for deforming, it would seem that the problem could happen again.