Sun-l 90 speed control
#1
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#6
Sun-l 90 speed control
Thank's for the reply's. I did remove the nut on the adjustment screw and turned it all the way in. Still run's at full speed. I'll try to put A spacer in at the carb and see if that works. I will let you know. If that don't work I guess I will replace the throttle assy. Thank's again for the reply's.
#7
Sun-l 90 speed control
Middleaged,
Before you mess with the carb, on some of these the screws are too short so even when you put them all the way in it does not touch the throttle. Take the thumb throttle cap off and you can see where the screw is. If it is too short then get a longer one and this should take care of it. Be very careful and inspect the throttle where the screw hits because some of the quads will have problems with the throttle sticking wide open. This happened to me and I found that the screw would slide under the throttle and bind on the treads and stick open. I took the screw out. You can see if it will happen by adjusting the screw in and hitting the throttle while the top is off (motor off). If the screw hits nice and center of the throttle then you will be fine. If the screw has a tendency to go below the throttle it will stick. This only happens when you try to limit the throttle real low. Not so much with the upper limits.
Before you mess with the carb, on some of these the screws are too short so even when you put them all the way in it does not touch the throttle. Take the thumb throttle cap off and you can see where the screw is. If it is too short then get a longer one and this should take care of it. Be very careful and inspect the throttle where the screw hits because some of the quads will have problems with the throttle sticking wide open. This happened to me and I found that the screw would slide under the throttle and bind on the treads and stick open. I took the screw out. You can see if it will happen by adjusting the screw in and hitting the throttle while the top is off (motor off). If the screw hits nice and center of the throttle then you will be fine. If the screw has a tendency to go below the throttle it will stick. This only happens when you try to limit the throttle real low. Not so much with the upper limits.
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