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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
Information on TM enduro bikes 1996+
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[QUOTE="TM-Frank, post: 768328, member: 20961"] Well, I have one. I bought it new in March 96 and rode it till Summer 2002. Then I bought the 02 300. What you say about the GG being a copy oft the TM holds some truth. In the early nineties GasGas bought 250 engines for their earlier models until in 97 or so they had their own one ready. They definetely took a close look at the TM engines. The first own GG motors were very similar to them. TM hasn't changed that much on the 250 engine. There are new cylinders, pistons and powervalves around now but lots of parts are still the same now. Weak points of the 250 engine are from my experience: Water pump impeller: Plastic part (said to be identical with the one KTM uses) with a cast in brass nut. When the engine gets too hot the impeller can break apart. Should be checked now an then. Clutch basket: The basket is a cast part and not of very high durability. When you ride with a lot of clutch feathering prepare to buy two per season. They are cheaper than japanese or austrian ones, though. Clutch plates & springs are Honda CR250R btw. Stay away from the Vertex piston for that bike! There seems to be something wrong with that piston. TM used them as OEM pistons in 94 and 95 and swapped to forged Asso pistons in 96 because the Vertex often shattered at the piston skirt. The Vertex are a lot cheaper than the forged ones but a lot of dealers and the german importer warned me about using them and I know at least three riders who wrecked their engines with them. (Before anybody says anything: There is absolutely nothing wrong with Vertex pistons for other bikes, it seems to be a problem with this single product only) There is a Yahoo group called "TM-Rider". There are some files like parts catalogues, suspension manuals etc. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
Information on TM enduro bikes 1996+
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