i need some tips on modifying my 86 atc 250r. can i get it stroked and ported?

 

check out ctracing on the web they have kits ranging from 295, 330 and a 350. they also have a honda pilot head conversion 400l for the 250r. How much are u looking to spend?

 

Check out www.ftzracing.com

They ported my motor and did a great job at a reasonable price. They gutted the cylinder for $250. They also make stroker motors, 400cc pilot/250R combinations, alcohol motors, CR250/TRX conversions, etc. They give good service at a reasonable price. They do it all. Trinity, Duncan Racing, CT are all too expensive in my book.

List what you have and I'll give you some ideas. Is your bike stock? How much do you want to spend? What kind of riding do you do? etc.

I've been riding ATC250R's for 15 years (had an 84 and an 86 Factory Honda and currently own an 85 and an 86). My friends and I have tried a lot of motor shops and different setups.

86 ATC250R FTZ Ported, Decked to .050, Polished Exhaust,K&N, 38mm Mikuni over to 39mm on alcohol, Boyessen Rad Valve with carbon fiber reeds, 16cc dyno head, 89 Pro-series "long rod" with 4mm spacer plate, 86 style .050 Pro-X piston, Paul Turner Hi-Rev pipe, PVL digital ignition (no flywheel). Veshra clutch w/ heavy duty springs.

85 ATC250R (my woods bike) K&N, 39PWK, boyessen reeds, reed spacer plate, .120 over Wiseco Pro-lite, MT ports, polish and decked, milled head (lots of compression), DG pipe.

 

thanks for the tips 250r man.
83 atc 250r stock.
84 atc 250r stock.
86 atc 250r k&n, answer roost boost plus,wiseco,fmf fatty + silencer, boyessen racing reeds.

 

My 85 is fast and is mostly stock except a few things like dg exhaust,k&n, .30 over . With all the mods you have on yours, they must be fast as lightening !!!

 

You guys are crazy. The atc 250r is fast enough for me in the stock form. Just as long as it beats banshees I am satisfied.

 

hay you have one of the most loved 3 wheelers of all time and the same engine as the quads your far from outta the loop feel free to check out any 86 R mods
monica yet another hopeless quad junkie

 

Check this forum out. It is a 250R specific board and should give you direct insight from the 250R crowd.

http://pub20.ezboard.com/bhondatrx250r

I go under username: ATC250R