Really embarassing when your first post is that it won't work, but I'm outa ideas.
I bought my 93 GSX750F about two months ago to commute. It was running a bit rough (stalls at lights, hesitates on throttle) so I thought I'd do the full major service to get it back to running right.
Did the usual stuff (fork oil, oil, brake fluid etc etc as per the Haynes manual) and thought that it would be a good idea to clean out the carbs.
Followed the Carbs 101 tutorial to the letter. Only difference was that I couldn't soak anything as you can't get carb soak anywhere in Sydney (probably some well meaning but unknowing greenie thing) so I was restricted to compressed air and pressure can carb cleaner spray. All jets soaked in cleaner over night and blown out with pressure (all seemed to flow OK)
Replaced the o'rings, all went back together ok. New plugs, coil mod, new battery, cleaned up some dodgy wiring and back together it went, 2 1/2 turns on the air mixture screw and 14.5mm or close to it on the float level. New air cleaner.
And nothing. Not even a pop or phart. Starter turns, nice and healthy and fast, but no firing. Not even a simple pop.
Starter turns so I assume it's not some sidestand or clutch cutout (tested the sidestand relay just to be sure).
I checked the valve clearances but only had to reset half of them and then not by much, so I don't think it's that. Pulled a plug lead and with one of the plugs (tried it with old and new) got spark at the tip, so I don't think it's electrical (didn't change spark timing at all). Removed the coil mod and changed it back to scratch just to be sure. Still nothing. Redid the carbs again, nothing. Redid the carbs again, replaced the original o'rings just in case. Again, nothing. Air box off, nothing. vacuum port blocked, unblocked, still nothing.
Pulled a plugs and I swear the plugs are almost bone dry, so it makes me think it's something to do with the carbs, but what could I have done that so totally nafs it that I don't even get a pop?
I'm going to try to get a can of starter spray and try that tonight, but in the meantime, any suggestions?
Thanks and Best Regards
Mike
I bought my 93 GSX750F about two months ago to commute. It was running a bit rough (stalls at lights, hesitates on throttle) so I thought I'd do the full major service to get it back to running right.
Did the usual stuff (fork oil, oil, brake fluid etc etc as per the Haynes manual) and thought that it would be a good idea to clean out the carbs.
Followed the Carbs 101 tutorial to the letter. Only difference was that I couldn't soak anything as you can't get carb soak anywhere in Sydney (probably some well meaning but unknowing greenie thing) so I was restricted to compressed air and pressure can carb cleaner spray. All jets soaked in cleaner over night and blown out with pressure (all seemed to flow OK)
Replaced the o'rings, all went back together ok. New plugs, coil mod, new battery, cleaned up some dodgy wiring and back together it went, 2 1/2 turns on the air mixture screw and 14.5mm or close to it on the float level. New air cleaner.
And nothing. Not even a pop or phart. Starter turns, nice and healthy and fast, but no firing. Not even a simple pop.
Starter turns so I assume it's not some sidestand or clutch cutout (tested the sidestand relay just to be sure).
I checked the valve clearances but only had to reset half of them and then not by much, so I don't think it's that. Pulled a plug lead and with one of the plugs (tried it with old and new) got spark at the tip, so I don't think it's electrical (didn't change spark timing at all). Removed the coil mod and changed it back to scratch just to be sure. Still nothing. Redid the carbs again, nothing. Redid the carbs again, replaced the original o'rings just in case. Again, nothing. Air box off, nothing. vacuum port blocked, unblocked, still nothing.
Pulled a plugs and I swear the plugs are almost bone dry, so it makes me think it's something to do with the carbs, but what could I have done that so totally nafs it that I don't even get a pop?
I'm going to try to get a can of starter spray and try that tonight, but in the meantime, any suggestions?
Thanks and Best Regards
Mike
Comment