Ok dealing with 85 250es Also have 86 trx250 . Is the 86 250 bottom end compatable with an 85 250es top end? Will the 86 trx250 engine be a direct drop in for the 85 25es?
Ok dealing with 85 250es Also have 86 trx250 . Is the 86 250 bottom end compatable with an 85 250es top end? Will the 86 trx250 engine be a direct drop in for the 85 25es?
Trikes: Cagiva 200, 85? Tiger 250,(2)84 200x's , (3)86 200x's, 87 200x, (5)85 350x's, (2)86 350x's, (2)85 250r's, 86 Tecate, (3) 85 250sx's Restoring: 83 200x, 86 250sx. Too many utility trikes to list.
exact same thing,some difference in the Bottom,but same top
1986 ATC500X
1985 ATC250SX
1985 ATC200X
1985 ATC250R
1986 ATC250R
1984 ATC250R
1981 ATC70
1984 ATC70
1985 ATC70
Custom built ATC70 / 250R laydwon swap
1986 ATC250SX FATCAT
I'm pretty sure the wire harness hook ups changed on the atc vs trx engine too. I think the engine output drive shaft is the same. If you use the atc bottom end and trx top end you should be fine I'd think though. If you have the whole trx machine, the swing arm is an "upgrade" item for the atc250sx machine, +3in but requires welding up a new shock mount.