New engine teething problems?
 

I've just recently got a new piston and rings put in my scooter cos l f++ked them recently here in Peru. I've been riding really gently for the past two days, not far, the first two days out and twice, once each day l've had a strange characteristic happen. The first day was going up hill and the second was going down. Both times were the same, a high pitched squeal and then engine cut out. It started straight away after five minutes and then both rode and sounded great afterward. Is this just the new engine setting it's limits or something to worry about. Any advice would be much appreciated.

Yours, Rupert.

Those squeals were probably a seizure.

Several possible causes - too tightly fitted piston, too lean, not enough oil.

First thing I'd do is take the head and barrel off and have a look. See the Suzuki forum for a recent TS185 thread on siezure repairs. Or search the HUBB only on Match ALL "seize sand file" (without the quotes)and you'll get two threads on it.

Check the oiling system to be sure it's set right,and using good oil.

I'd also do a plug check to see if the jetting is right. (Full throttle for at least 1/2 a kilometer, then pull in the clutch and turn off the ignition and brake to a stop. Spark plug should be light to medium brown, not white.)

Let us know what you find.

Note that a seizure on a 2-stroke isn't fatal, just requires a little tlc, or it could eventually destroy everything.

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Grant Johnson

Seek, and ye shall find.
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One world, Two wheels.
www.HorizonsUnlimited.com

Grant,

Thanks! Instead of me checking it, l've had a mechanic here in Juliaca look it over. He's checked the piston as a precaution and beleves it all to be well. He reckoned it was new parts not sufficently lubricated prior to placement. This he suggests is something that is common with replacement. It should have been sufficently lubricated before replacement but was obviously slightly underestimated. It has been fine since those first few days and he says the oil line is working as it should. I'm interpreting it as Ok and that the engine had to be run for a while to become lubricated properly. However the geezer in Cusco should have helped things along before l gave the throttle a squeeze.

Yours, Rupert.