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« on: October 24, 2013, 05:08:49 AM »
If it's set up like the small engines I sell and work on at the shop then,
1: The rectifier is designed for that output at that RPM. Nothing to do with your redline, just a baseline for testing in case end user is having trouble blowing up light bulbs and fuses (happens a lot on Agility 50's that we've sold lately). Also has to be stated that way which I will get to after #2.
2: The test engines the spec sheets are based on for your particular model list the top H.P. and Torque and which engine RPM's those engines had to be at to reach those levels. All the engines had to be within 10% of those numbers so Kymco could cover their asses with the write ups when publishing them for sales here in the states.
The problem is that there is no real suggestions / guidelines for what your max RPM's should be. I've yet to find anything listed in any service manuals or spec sheets on any of the scooters we sell. All the mowers, tractors, side-by-sides and anything else we have though I have it written out plainly for top RPM's at WOT and most hand equipment like anything Stihl has it listed what top RPM is when the rev limiter is designed to kick in. The other problem now is that to sell anything and be able to list Torque / Horsepower as a selling point, it has to say somewhere that it's reached at a set RPM under "No Load". A few years ago some guy on the west coast, Oregon somewhere I think, sued or started a class action suit against Kohler specifically but then added the other small engine makers because his push mower would not reach the advertised H.P. set up to mow. The stated 6.75h.p. on his Wal-Mart was only reachable at 3600RPM but obviously this guy was a mechanical engineer and not a mechanic so had to scream and shout that he knew better and was ripped off in horsies. Now they mostly list Torque at so and so RPM's, and a few like Kawasaki still list HP, but again at so and so RPM's.
So now that I confused a fairly simple question and can no longer make a long story short in my rant, the simple answer is: Those numbers listed for spec show the potential power from your engine, Torque and HP, but not necessarily the safe RPM's for running your scooter at, and I have yet to find a recommendation from Kymco for top RPM's.
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