MVC,

Try removing the large washer on the diaphragm and see if the RPM is reduced as I have had some issues with them.

Also check the gov lug that comes out of the engine is clean as that will stop it from working properly.

The valve should be set to C where the cut out is in the carby because if if it is set to either A or B it will affect the RPM's. cheers2

Regards,
[Linked Image]

Bruce


Please do not PM me asking for support. Post on the forums as it helps all members not just the individual.