Hi Guys,
I'm going insane.
I have a 1996 Seadoo Challenger with Rotax 787 dual carb.
After pulling it out from winter I've found that when starting it up the boat was stuck at WOT.
After pulling apart the throttle assembly, found nothing wrong with the cable.
I've since decided time to pull the carbs off and remove the throttle lever, springs and bushings that the throttle cable connects to.
Trouble is, the final 4 carb bolts (2 on each carb) are completely seized and I've now stripped the head of one on the MAG carb. Before it stripped I had loaded it with XPS lube for days to try and loosen it.
Anyway, so I decide to pull the throttle lever and spring from under the carb without removing the carb. Which was relatively easy. I've now found that the springs and lever all appear perfect. No signs of corrosion at all. Spring is still in good shape and not bent.
The throttle shaft for the butterfly valve appears to be perfectly fine. No signs of corrosion at all. I've spray heaps of XPS up the shaft, nothing corrosion like has come out. So it appears fine. But the MAG carb is definitely very difficult to turn in comparison to the other.
After spraying heaps of XPS up the shaft and leaving it for days and turning it back and fourth every few hours it is still stuck.
I obviously can't get the carb off and therefore can't remove the shaft.
Any ideas on how to fix it from sticking.
I was thinking of rermoving the throttle/butterfly plate so I can spin it 360 and use a drill to spin it at high speed to maybe free it. Thoughts?
Open to any ideas?
Or perhaps some ideas of how the hell I remove the bolts to get the carb off.
Any advice appreciated
Thanks
Chris
I'm going insane.
I have a 1996 Seadoo Challenger with Rotax 787 dual carb.
After pulling it out from winter I've found that when starting it up the boat was stuck at WOT.
After pulling apart the throttle assembly, found nothing wrong with the cable.
I've since decided time to pull the carbs off and remove the throttle lever, springs and bushings that the throttle cable connects to.
Trouble is, the final 4 carb bolts (2 on each carb) are completely seized and I've now stripped the head of one on the MAG carb. Before it stripped I had loaded it with XPS lube for days to try and loosen it.
Anyway, so I decide to pull the throttle lever and spring from under the carb without removing the carb. Which was relatively easy. I've now found that the springs and lever all appear perfect. No signs of corrosion at all. Spring is still in good shape and not bent.
The throttle shaft for the butterfly valve appears to be perfectly fine. No signs of corrosion at all. I've spray heaps of XPS up the shaft, nothing corrosion like has come out. So it appears fine. But the MAG carb is definitely very difficult to turn in comparison to the other.
After spraying heaps of XPS up the shaft and leaving it for days and turning it back and fourth every few hours it is still stuck.
I obviously can't get the carb off and therefore can't remove the shaft.
Any ideas on how to fix it from sticking.
I was thinking of rermoving the throttle/butterfly plate so I can spin it 360 and use a drill to spin it at high speed to maybe free it. Thoughts?
Open to any ideas?
Or perhaps some ideas of how the hell I remove the bolts to get the carb off.
Any advice appreciated
Thanks
Chris
