OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Robin Subaru Engines over-revving robin 25cc

I have a Makita 2510 whippy with the robin 2stroke engine. Halfway through a job this morning it starting revving out to blazes, I was able to finish the job but it is running too high - any ideas? or links to a manual for the current robin 25cc 2 stroke?

Here is the Makita RBC2510 owner manual:
http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

I doubt that it has a governor. It seems more likely to be a problem with the throttle cable sticking, or the clutch not engaging. However I stand to be corrected. (I've never actually found a governor on a tiny 2 stroke engine - usually their lousy scavenging limits their high speed performance sufficiently to keep them from bursting. The port timing is set in the first place to give the desired performance.)

fixed - boss was slipping on the head (cheap hollow part had partially collapsed, which surprises me on an otherwise quality unit?!)
cheers grumpy!!

Thanks for reporting back, Redeye. I'll close this thread.