darboots - 1961 CA77 from boxes

darboots · Post by **darboots** » Fri Mar 17, 2017 1:34 pm

Managed to start the bike, but... The revs instantly hit what sounds like 3000 RPM plus. Choke on (up) does slow it down somewhat (bogging), but runs happily off of the choke with no reduction in the revs.

Any ideas from the forum, please?

rpr851r · Post by **rpr851r** » Fri Mar 17, 2017 1:49 pm

Check to make sure the slide isn't in backwards and also check to make sure the throttle cable is not hung up. I have had both happen.

LOUD MOUSE · Post by **LOUD MOUSE** » Fri Mar 17, 2017 1:52 pm

Check the entire carb link!. ..............lm

darboots wrote:Managed to start the bike, but... The revs instantly hit what sounds like 3000 RPM plus. Choke on (up) does slow it down somewhat (bogging), but runs happily off of the choke with no reduction in the revs.

Any ideas from the forum, please?

jkv357 · Post by **jkv357** » Fri Mar 17, 2017 8:47 pm

darboots wrote:Managed to start the bike, but... The revs instantly hit what sounds like 3000 RPM plus. Choke on (up) does slow it down somewhat (bogging), but runs happily off of the choke with no reduction in the revs.

Any ideas from the forum, please?

A vacuum leak will cause it to rev as you mentioned.

When I started my Dream for the first time in 20 years it did the same thing. I checked a few things and finally figured out that the adjustment in the cable (just down from the steering head) was adjusted out to far and was pulling up the slide.

Loosened the adjustment and the idle dropped right down.

darboots · Post by **darboots** » Sat Mar 18, 2017 6:22 am

A few things to check there... Thanks both. It'll be Monday before I'm able to get out into the garage again - domestic duties on weekends! :o)

darboots · Post by **darboots** » Mon Mar 20, 2017 6:17 am

Does this look OK? Does it look like the carb slide is bottomed? Should it be lower?

Or, does it look like the cable is an incorrect type?

The cable only has an adjuster at the throttle end, and it's fully slackened (this is not a 'hinge' type throttle, it's the early twist grip type).

LOUD MOUSE · Post by **LOUD MOUSE** » Mon Mar 20, 2017 8:17 am

It isn't bottomed.
Some how ya need a bit more slack.
Is the carb end up into the slide cavity? ...............lm

darboots wrote:Does this look OK? Does it look like the carb slide is bottomed? Should it be lower?

Or, does it look like the cable is an incorrect type?

The cable only has an adjuster at the throttle end, and it's fully slackened (this is not a 'hinge' type throttle, it's the early twist grip type).

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darboots - 1961 CA77 from boxes

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