Ok so, we are starting a drag racing 250R Project, we are missing an engine. I was looking through the internet to find out that an 88 TRX 250R engine was for sale. Although we want an 85 250R engine in it, will this work in the 86. Also we were looking for companies that make extended swing arms. Any ideas?

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Does a gun kill people, or does the person with the gun kill them???? you decide

If your 85 has the sprocket on the right side, then the 88 motor will not work.
I forget what year they went from the right side sprocket to the left side.
I do know the 86 models were on the left.

Lone Star racing for the swingarm.
1-800-4LS RACE

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88 framed 2-fiddy-R 300cc's 2000 GNC 40+ class 5N 2001 GNC 40+ class 9N 2004 GNC 40+ class 9N A few fast LT-80's ATVA / WPSA member Father of the "9" time National Champion and worlds fastest woman ATV racer. Survivor of the 12 hours of ATV America '04 and '05!!
TT RULES!!

Edited: 04/30/2008 at 12:22 PM by LT80

thx man, also we decided that we were going to get a CR500 engine for it

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Does a gun kill people, or does the person with the gun kill them???? you decide

the year they switched sprockets was 84, cause i have 1983.

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Does a gun kill people, or does the person with the gun kill them???? you decide