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Discussion Starter · #1 ·
So it’s really a long story so im gonna keep it super short and sweet!! Somehow a spark plug came up missing mid ride. I have idea how. Replaced it bike was running magnificent I actually broke my top speed record of 180mph. The very next day I go for a ride and my bike will get up and go until it’s gets to 7-9k and gets real sluggish once I’m past about 10k it gets back going …. Can someone please tell me what’s going on. Oh I also flushed the radiator when I replaced the spark plug!! Someone please help !!!!
 

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Could be a few things. Plugs very rarely just quit. I'd pull all four plug leads, unscrew the boots and cut 1/2" off the ends to get to some fresh non corroded wire and then screw them back on. You have a 25 year old bike. Almost guaranteed you have corrosion.

As far as the sluggish problem. Do you have the EXUP valve? Are you getting any error codes? Are you sure the clutch isn't slipping? Look at your rpms when it gets sluggish and see if they jump. Really doubt it's a fuel delivery problem.

Mark
 

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Discussion Starter · #3 ·
Could be a few things. Plugs very rarely just quit. I'd pull all four plug leads, unscrew the boots and cut 1/2" off the ends to get to some fresh non corroded wire and then screw them back on. You have a 25 year old bike. Almost guaranteed you have corrosion.

As far as the sluggish problem. Do you have the EXUP valve? Are you getting any error codes? Are you sure the clutch isn't slipping? Look at your rpms when it gets sluggish and see if they jump. Really doubt it's a fuel delivery problem.

Mark
Could be a few things. Plugs very rarely just quit. I'd pull all four plug leads, unscrew the boots and cut 1/2" off the ends to get to some fresh non corroded wire and then screw them back on. You have a 25 year old bike. Almost guaranteed you have corrosion.

As far as the sluggish problem. Do you have the EXUP valve? Are you getting any error codes? Are you sure the clutch isn't slipping? Look at your rpms when it gets sluggish and see if they jump. Really doubt it's a fuel delivery problem.

Mark
so t
Could be a few things. Plugs very rarely just quit. I'd pull all four plug leads, unscrew the boots and cut 1/2" off the ends to get to some fresh non corroded wire and then screw them back on. You have a 25 year old bike. Almost guaranteed you have corrosion.

As far as the sluggish problem. Do you have the EXUP valve? Are you getting any error codes? Are you sure the clutch isn't slipping? Look at your rpms when it gets sluggish and see if they jump. Really doubt it's a fuel delivery problem.

Mark
earlier today I attempted to clean my fuel filter and sure enough when I put it back on it’s like my bike was a whole new bike literally… so tomorrow I’m probably gonna just go buy a new fuel filter so shouldn’t have to worry about that for a while
 
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