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I found it! The location was actually located in the plastic that houses the battery. I had problems locating it since I didn't discover the loose solenoid until I removed the plastic and I was focused on finding the mounting location on the frame.

Lencho

I recently purchased a used 2008 Jonway 250 with 20 miles on it. I removed all the plastic to inspect the bike and found the starter solenoid just hanging by the wires. I've searched and there is no obvious place to attach it to the bike. Does anyone have a pic, or explain where it should be installed?

I am open to any other maintenance suggestion I should take care of while all the plastic is removed. I am planning on changing the engine oil, fuel lines, and final drive oil.

Lencho

So, let me share with you what fixed it!

I took tvnacman's advice and went to the scooter shop to buy a longer (842) belt. I was smart enough to bring my old belt with me (not normal) and immediatly noticed the new belt was much wider. My old belt had worn down from 20mm to about 17mm.

My thought is that the shorter belt (835) was too tight and caused excessive wear on the side of the belt. With a worn belt I was not taking advantage of high gear since after the variator moved all the way into high gear, the belt wasn't wide enough to ride on the outermost part of the drive pully.

With the old belt I ran 60 MPH at 9500 RPM
With the new belt I run 65 MPH at 8200 RPM

Much better!!!

Thanks for the help guys

Lencho

When alleyoop shared the ratio of weights to rpm, I assumed he was referring to WOT rpm. In my mind, the only way to do that is for the heavier weights to move the variator inner gear further resulting in a higher gear. After reading the other responses I now wonder if he was referring to rpm at which the variator starts to shift.

I marked my variator and ran up the engine (on the center stand, not driving it) and the attached pic shows the result. Does it look like there is unused high gear I could take advantage of with heavier weights?

Lencho

I have a 150cc scooter and the tach shows the redline at 9000 rpm. At WOT on a flat road the engine will rev over the redline, as high as 9500 while traveling at 60 mph. I have read here that the max rpm should be limited to 7000 - 8000 by changing the weight of the rollers/sliders. If I install heavier rollers and decrease the rpm, will I still reach 60 mph? Is there some magic spreadsheet or chart that can help me keep from spending $200.00 on trial and error and ending up with 8 extra unwanted sets of rollers?

Lencho

I am going to change the spacer and gasket. unfortunatly there are no scooter parts stores where I live. Before I order one on line, does anybody know if there are other scooters with the same spacers? What about the Honda Ruckus? There is a Honda dealer here that stocks all kinds of parts, but if you walk in and say "... chinese scooter" they show you the front door.

Lencho