'Un-retiring' a pair of '96 GSX's we bought new back then that have sat idle for a few years. One runs great, the other is having an odd issue with acceleration.
When I roll the throttle on gently it will run right up to the rev limiter and can stay here all day, but when I give it a handful of throttle it doesn't die, but immediately goes into what I'd call 'diesel' mode - a slow off sounding idle. I let off the throttle and let it idle for 30 - 45 secs and then it'll come right back to life, unless I give it a handful again and the diesel process repeats. Roll on the throttle and the boat will run all day. The problem is very repeatable - it will do it every time the throttle is mashed.
Spark plugs look clean so I don't think it's loading up the carbs, more like it's electrical or getting starved for fuel.
With 2 GSXs it's easy to trouble shoot and swap parts - I've tried the easy ones - coil, mpem, regulator with no change.
Could it be fuel starvation? the diesel scenario is immediate with throttle mashing, not say after a carb bowl worth of fuel has burned through.
Any help would be greatly appreciated!
-dave
When I roll the throttle on gently it will run right up to the rev limiter and can stay here all day, but when I give it a handful of throttle it doesn't die, but immediately goes into what I'd call 'diesel' mode - a slow off sounding idle. I let off the throttle and let it idle for 30 - 45 secs and then it'll come right back to life, unless I give it a handful again and the diesel process repeats. Roll on the throttle and the boat will run all day. The problem is very repeatable - it will do it every time the throttle is mashed.
Spark plugs look clean so I don't think it's loading up the carbs, more like it's electrical or getting starved for fuel.
With 2 GSXs it's easy to trouble shoot and swap parts - I've tried the easy ones - coil, mpem, regulator with no change.
Could it be fuel starvation? the diesel scenario is immediate with throttle mashing, not say after a carb bowl worth of fuel has burned through.
Any help would be greatly appreciated!
-dave