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No Throttle Spring Back

J

jacerutti

New member
Hi Guys,

We are working on an 1971 R60/5 (and new to Airheads) and working with the throttle control. Currently when we pull the throttle it has little pull, although we can tell it is working on the carbs. There is no spring back at all.

Any advice or information on how to set this up correctly? Not sure if it is the throttle assembly we are doing wrong or if this is something else.

Where does the spring action come from, the carbs or the assembly?

Thanks!
 
jacerutti said:
Hi Guys,

We are working on an 1971 R60/5 (and new to Airheads) and working with the throttle control. Currently when we pull the throttle it has little pull, although we can tell it is working on the carbs. There is no spring back at all.

Any advice or information on how to set this up correctly? Not sure if it is the throttle assembly we are doing wrong or if this is something else.

Where does the spring action come from, the carbs or the assembly?

Thanks!
Click to expand...

There should be a spring above the slide in the carb. If that's present, the cables could be binding (crimp point at some place) or the slide itself could be binding. Next to check would be that the gear on the throttle is set up correctly so that you are getting a complete pull.

B0003863.png
 
Drop the bike on the right side? Throttle tube/grip could be jammed against the handlebar.
 
Did the early bikes have the throttle stop on the underside of the housing? If so, it could be a bit too tight, not allowing it to snap back. Could be a damaged or old cable. While generally not required, try some cable-specific oils drizzled into the top part of the cable...you'll have to disassemble...to see if that helps. If it does, then you need a new cable.
 
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