PDA

View Full Version : Atc 250r compatible engines



Trooper308
05-14-2017, 04:25 PM
Looking for other 2 stroke engine options for a 1983/84 ATC250r preferably drop in no frame mods.

gimmeamidget
05-14-2017, 04:40 PM
81-84 are all the same.

gimmeamidget
05-14-2017, 04:42 PM
Any other motor you drop in will need mount mods that I am aware of.

fabiodriven
05-14-2017, 05:32 PM
Only difference between the 81/82 and 83/84 is the shifter shaft.

HondaRidr
05-14-2017, 07:27 PM
Why do you want a different engine?

Sent from my SM-G930T using Tapatalk

350for350
05-14-2017, 10:51 PM
It would be a little tough since they're right hand drive. Most are left hand drive.

Trooper308
05-15-2017, 01:02 AM
Only difference between the 81/82 and 83/84 is the shifter shaft.

That is the one part I need, haven't been able to locate one.

Trooper308
05-15-2017, 01:04 AM
Why do you want a different engine?

Sent from my SM-G930T using Tapatalk

Because trying to find parts for this thing has been a pain in the ass, would like to find a newer engine to slap in it with parts that aren't damn near impossible to find.

fabiodriven
05-15-2017, 12:06 PM
It doesn't work that way. You'd have a much bigger project on your hands cramming the wrong engine in there than you would trying to source parts for the correct engine. If you're frustrated either calm down and make some connections in the community or send the bike along to someone with more patience. There's a lot of reasons why another engine is going to be difficult. General engine fitment for one, exhaust, intake clearance, and the lack of a counter balance if you use a bike engine.

For the love or not at all.

Trooper308
05-15-2017, 09:10 PM
It doesn't work that way. You'd have a much bigger project on your hands cramming the wrong engine in there than you would trying to source parts for the correct engine. If you're frustrated either calm down and make some connections in the community or send the bike along to someone with more patience. There's a lot of reasons why another engine is going to be difficult. General engine fitment for one, exhaust, intake clearance, and the lack of a counter balance if you use a bike engine.

For the love or not at all.

Thanks for your input, however I would like to stay on topic. I "love" custom jobs so I would like a list of modern right hand shaft engines please. Modifying the frame isn't out of the question.

fabiodriven
05-15-2017, 09:13 PM
If you're the fabricator you're trying to portray yourself as then put whatever you want in there. I put a CR480 engine in my 84 ATC250R chassis.

Trooper308
05-16-2017, 12:36 AM
If you're the fabricator you're trying to portray yourself as then put whatever you want in there. I put a CR480 engine in my 84 ATC250R chassis.

Not a machinist, but I have a 3 in one mig/stick/tig and can use it well enough to make the frame take a different shape. Thanks, I'll add the CR480 to my potential donors.

350for350
05-16-2017, 10:00 PM
If I remember, that isn't a drop in either. I also seem to recall that Fabio's 480 may stretch your arms a little if you ride it for very long. It's also not a newer engine. It was made in '82 and '83 if I recall. Honda used a lot of right hand drive engines inn the later 70's and early 80's. It may not be much easier to find parts for them either.

BOB MARLIN
05-17-2017, 08:57 AM
No matter what you find, the kick start will be the wrong direction also.