I’ve got a 1975 GT550 that fouls the left carb plug. I don’t know how many times I pulled the carbs and tried all sorts of things to try and fix it with no luck. Change jetting, adjust float height, etc etc etc. Sick of carrying extra plugs and plug wrench and it dying on me out on the street periodically, I gave up on it and now it sits in my garage collecting dust. It’s in amazing shape, other than this ONE issue. The other plugs always look good. If you have any thoughts on why this may be, I’d love to hear them.
Hi. Sorry to hear of your problem. Firstly i would return your jetting and float height to stock. The float height is crucial here and cannot be adjusted. My first course of action would be to check that the choke piston on the offending carb is closing fully and not sticking on the bore as they have a habit of doing. This problem will cause the plug to foul and affect performance too. Secondly have a look at this forum www.kettleclinic.co.uk/kcforum/search.php? A friendly bunch and lots of info with a large GT550 section. Good luck
I recently came into possession of my grandfathers 1975 GT550, and have been working towards a full restoration. One of my early challenges has been finding good sources of information on maintenance and where to find replacement parts, as I have no prior experience working with automobiles. Your link has already been incredibly helpful so far!! @@peterholmes2067
I’ve got a 1975 GT550 that fouls the left carb plug. I don’t know how many times I pulled the carbs and tried all sorts of things to try and fix it with no luck. Change jetting, adjust float height, etc etc etc. Sick of carrying extra plugs and plug wrench and it dying on me out on the street periodically, I gave up on it and now it sits in my garage collecting dust. It’s in amazing shape, other than this ONE issue. The other plugs always look good. If you have any thoughts on why this may be, I’d love to hear them.
Hi. Sorry to hear of your problem. Firstly i would return your jetting and float height to stock. The float height is crucial here and cannot be adjusted. My first course of action would be to check that the choke piston on the offending carb is closing fully and not sticking on the bore as they have a habit of doing. This problem will cause the plug to foul and affect performance too. Secondly have a look at this forum www.kettleclinic.co.uk/kcforum/search.php?
A friendly bunch and lots of info with a large GT550 section. Good luck
Or here for your side of the pond
www.suzuki2strokes.com/forum/index.php?sid=c509696957f0632e85e983ba924d9c85
@@peterholmes2067 Thank you so much for your thoughts - much appreciated. I will investigate all of these things! 👍
I recently came into possession of my grandfathers 1975 GT550, and have been working towards a full restoration. One of my early challenges has been finding good sources of information on maintenance
and where to find replacement parts, as I have no prior experience working with automobiles. Your link has already been incredibly helpful so far!! @@peterholmes2067