Very high tickover

[Zed1]

Hi I'm restoring a 350 Excalibur , which is now running but the tickover is V high no rev counter at the moment so not sure how high , cleaned carb's , set valves , slides seem to be fully down but can't get revs down , tried swapping carb's round but still reving high anyone know where I should look next ? Cheers

[hendre]

leaky carb rubbers/gaskets?

[72degrees]

Hi I'm restoring a 350 Excalibur , which is now running but the tickover is V high no rev counter at the moment so not sure how high , cleaned carb's , set valves , slides seem to be fully down but can't get revs down , tried swapping carb's round but still reving high anyone know where I should look next ? Cheers

What happens if you disconnect the throttle cables at the twistgrip?

[morini_tom]

Zed1- does your Excalibur have kokusan ignition (late type, pickups mounted on flywheel) or the old type Ducati ignition (pickup on camshaft)

If it's a late Excalibur with kokusan ignition then the kokusan bikes are prone to rev hangup, but it can be cured.

See the below thread over from the dart thread:

viewtopic.php?f=16&t=2285

[MickeyMoto]

Slides back to front?

[EVguru]

Slides back to front?

Having the slides in back to front won't result in a 'fast' idle, it will result in it revving it's nuts off while you desperately grab for the ignition switch.

If the engine speed won't respond to the slide stops, then the prime candidates are too much ignition advance, or the slides hanging on the cables.

Although the step in the advance curve of the Kokusan ignition can cause the revs to 'hang', you can also get the opposite effect. You back the stops off to lower the idle, then fall off the curve and end up with a very low idle or a stall.