Re: Throttle Lock
At this point, I'm considering just rigging a supplemental return spring, if I can find a way to connect it to that bell-crank. Otherwise I'll live with it until the need for a major carburetor rebuild.
I've even shortened the grip so that there is no contact between the components on either end. My problem is that the coiled return spring at the carburetor has lost its... well... "spring," and is not returning back to "full off." I can twist the throttle off (forward) more than the spring will pull it, and the bike will drop idle even further. I've been inside there and have seen what is going on. The idle adjustment screw is completely retracted and is not even contacting the stop on the bell-crank at the carbs. I've checked for any cable kink or routing problems... I've lube the heck out of both ends of the cables and they appear to be moving in and out without restrictions. It's just that in order to get to that goofy spring (to replace or simply re-tighten) I've got to pull the carbs off, because that bell-crank piece is right up against a piece of frame.You have probably considered this already but have you tried 'spraying' some powdered graphite at the ends of the twist grip at the switch block and bar end weight. I had a similar experience to you the graphite lubricated the ends of the grip and it returned normally.
At this point, I'm considering just rigging a supplemental return spring, if I can find a way to connect it to that bell-crank. Otherwise I'll live with it until the need for a major carburetor rebuild.
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