I did a search but did not really find exactly what i was looking for. My 83R recently bit the dust and was wondering if there were any motors off other machines that would easily fit into the 83R frame. Any help would be great, Thanks.
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83-84 250R Engine Swaping?
I did a search but did not really find exactly what i was looking for. My 83R recently bit the dust and was wondering if there were any motors off other machines that would easily fit into the 83R frame. Any help would be great, Thanks.
1984 Honda 250R
1985 ATC 250SX
1985 Tri-Z 250
1983 Honda 250R
1986 Honda 350X
1983 Yamaha Tri-Moto 175
1983 Honda Big Red 200
1981 Honda ATC 110
First Time Rider
Arm chair racerNew to the board
I think air cooled cr250 cylinders interchange but the bottom of the motor I think you are stuck with atc250r 81-84.
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Catch me if you can
yea the old elsnore air cooled bikes fit, but there trans will leave you running every where wide open at 45 mph, lol, or you can put in the legendary CR480 air cooled motor!! and destroy!!
First Time Rider
Arm chair racerNew to the board
83-84 250r bottom end only, nothing else fits.
At The Back Of The Pack
Arm chair racerFirst time rider
Hey Sykolincoln Is the 480 motor a complete bolt in.
85-70,79-110,79-110,80-110,86-250ES,85 250r,86 350x,82 250r
Check my feedback before buying from me
Catch me if you can
the mechanic at the shop has a pic of an 84 that he used to drag back then and he had a 480 in it, and as far as I know he said it was almost a direct bolt in, he said it was insane on his bike, of course it was bored and ported and had all the goodies, next time I'm there I will talk to him more, aslo they have a cr 480 there that he's tryiung to get me to buy (it needs a complete rebuild) hopefully for the low low, but I dont want to take apart my 300 for that I would need another air frame.
Power User
Roostin Away
the 480 is not a complete bolt in mod, you do have to build new motor mounts, and make sure the sprokets aline properly... other then that, it is a pretty forward install. Also, a custom exhaust pipe has to be built.
Adam
86 ATC 500R the duner..
85 ATC 500R...the not quite finished faster duner
1985 ATC 250R Bone stock!!
1985 ATC250R mx/duner
1986 TRX370R MX/Duner
94 Banshee 400PV Cheetah 105RWHP
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Arm chair racerJust too addicted
Thanks guys. I would also like to know the same thing as willcamach, how hard are these 480 engines to get?
1984 Honda 250R
1985 ATC 250SX
1985 Tri-Z 250
1983 Honda 250R
1986 Honda 350X
1983 Yamaha Tri-Moto 175
1983 Honda Big Red 200
1981 Honda ATC 110
Just Too Addicted
Arm chair racerJust too addicted
well there is one on ebay right now item#170073727272 its currently @ $399.99 not to bad but im holding off till i get more info on this swap.
83 250R
91 CR125R
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Arm chair racerJust too addicted
I'm actually doing this now, you need new mounts, custom pipe, but just looking at the 2 motors side by side they are really close. I'll post more pics of it as I get farther into it
85 Tecate, 2002 Honda 300EX, 83 & 84 250R, a bunch of honda 4 strokes from 90 to 200cc, a klt 110, ytm 200, polaris 250 cyclone, '05 Roketa 125 (cheap chinese pitbike to beat on), '69 Scrambler 6x6, and a 52 John Deere B (hey its a rowcrop narrow front, that counts right?)
Trike Fest 06 and 07 Survivor, hoping to make it to 2010
Just Too Addicted
Arm chair racerJust too addicted
Just wanted to add an update as I'm doing this same swap right now. Two other things that will have to be addressed are the kick start and the shifter, both will need to have the shafts lengthed to clear the frame. I'm just going to have a machine shop mill a shaft that slips onto the spines then adapts back again probably about 2 inches long. If anyone has any input on this I would appreciate it.
I put the motor in the frame just as a test fit before I started tearing it down and it looks close but like I said you have to fix those things and make some motor mounts. Also, I'm planning on using a stock 480 pipe but having it lengthened about to inches on the lower part to have it line up nice. I have pics but they arent uploading, says there too big
Not trying to hijack your thread, just saw that you asked for input from anyone who has done this before. Well I'm learning as I go and I can throw up a few pics if you want. Still got a long way to go, but I hope to have it done before trikefest. Good luck with whatever you end up doing
Last edited by Chevy200s; 02-03-2007 at 01:16 PM.
85 Tecate, 2002 Honda 300EX, 83 & 84 250R, a bunch of honda 4 strokes from 90 to 200cc, a klt 110, ytm 200, polaris 250 cyclone, '05 Roketa 125 (cheap chinese pitbike to beat on), '69 Scrambler 6x6, and a 52 John Deere B (hey its a rowcrop narrow front, that counts right?
Trike Fest 06 and 07 Survivor, hoping to make it to 2010
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