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Engine differences

2143 Views 6 Replies 6 Participants Last post by  mac102004
Is there any differences in the early model trx300 fourtrax engines compared to a later model trx300's? I have a friend needing an engine for his '95 trx300 4x4 and he has found a parts bike that looks like an early model, '88 to maybe a '91. looking at the pics of the parts bike, I can tell right off hand the exhaust is different.
Will the early engine bolt up to his later model frame?
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The front drive shaft won't matter as long as he uses the shaft which matches the frame he is using ---------- the choke plunger is different , so you have to use the head light assembly , cable and plunger as a set , they don't mix and match ----the muffler from a 88 will fit up to a 92 I know cause I just did it , I know it won't fit a 95 up cause I have a 95 -----my wifes' 96 has a 90 engine , but it also has the wiring harness and electrical components from the 90 so if the cdi is plug and play I don't know
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