Hey folks. Purchased an 86 Vulcan 750-A2 a few days ago.
So far so good...or at least the seller set the 'things start to go wrong/lemon' timer to 1 week.
The catch is that the throttle assembly/box doesn't fit securely on the handlebar, as it will rotate. Best way to describe it is that if you pushed on the engine kill switch really hard the assembly would twist. I put on a couple layers of electrical tape on the handlebar so it tightens up as you secure the upper and lower halves together. I assume something snapped off at some point during it's life. What is the part/plug/pin that I need? I can't seem to find this in schematics, specs, or my repair manual.
Thanks guys. Lots of information on here. Killed a few hours just browsing.
Last edited by gambit101; 08-16-2008 at 12:22 AM.
I think the stock handlebar had a hole that lined up with a protrusion in the housing...so do not know it you need to drill a hole in the bar or locate the one there, or if the "pin" was sheard off somehow. You should be able to tell if it was by taking it apart and looking. (some folks put on diffrent handlebars so not sure where else to begin)
Kinda sounds like the pin is there but not the hole....
Make sure you do not strip out the two bolts that clamp the housing on as the unit is soft aluminum.
Hmm. There *IS* a hole on just the top side of the handlebar as well as piece of plastic that juts out in the upper control housing. I suppose a screw or thick pin fits into the spot in housing and then it lines up with the hole in the handlebar. Does someone have a few photos of a disassembled stock or aftermarket throttle assembly with all the screws and such that are used during installation? That would help a lot in knowing what I should look for. I'll bet I can pick something up at the hardware store.
My throttle housing I have sitting here seems to be missing a pin itself. Likely the piece sheared off or the prevous owner removed it to tilt the bars back more. In any event, you might want to make sure the two halves bolt all the way down solidly off the bar, as it should not turn if properly tightened. you might have some grease from the throttle on the bar, or it may be getting hung up some.
I once used a thin strip of rubber off an inner tube to fix the exact problem you are having on another bike. I laid it on the top of the bar, positioned the throttle assembly where I wanted it and torqued the screws down. used a razor blade to cut off excess.
You could carefully drill the protrusion in the housing and cut a small bolt or nail to glue in there...
Ah, perfect. I'll shape a piece of rubber or thick foam to put in there. More piece of mind knowing it isn't jury-rigged with tape. I'm not sure I'm ready to be taking a drill to my bike just yet. Thanks for the suggestion.