Well done in solving the issue, most times the revs running high is something in the throttle mechanism sticking, etc. You may want to check that the return springs are still strong and working correctly as they keep things tight and stop erratic movement, the best set up is two springs one inside the other.


Bruce
1964 4/4 Series V Comp (Megan)
1994 +8 (Maurice)
2013 M3W (Olga)