My new rat atc 70

[jeffatc250r]

Picked up this ugly lil critter today. Im thinkin slam a lifan 125 in it and call it the party-bomber. Its your typical POS that has been used and abused relentlessly. As you can see the forks were heated and bent back, Im gonna assume it was tweeked bad from the worn out front tire, All three are ohtsu, just the front is smoked. Tank is dented with jb along the bottom left seam. Grab bar is mia and the mount has been welded by what appears to be a 3rd graders first attempt, motor has no compression.

WTF was I thinkin

;';

;';

;';

[ATCeeya]

you get a good deal on it? looks like a good project

Id buy the pullstarter off you if you dont use the motor

[jeffatc250r]

I got it for a song. I will keep you in mind if and when I swap it out.

[jeffatc250r]

Also, can anyone ID the year by looking at it? Or should I post up the vin?

[ATCeeya]

i think 78-83 is a 3 speed down shift pattern, 84 was 4 speed down shift, 85 was 4 speed up shift

[jeffatc250r]

Guess its an 84, 4sp down

[3wheelmecca]

thats what mine looked like when I got my ATC70. Mines an 85 and is mint, i am selling it. That bike looks like a very solid start, its all there.
nice find.

[Vealmonkey]

You got quite a project there. Bent forks, possibly bent frame. Messed up fork stops. You'll be busy for awhile. Take the number off the engine and plug it into the trike id thread posted on here somewhere, that should tell you for sure. Sometimes the 70s can be a mix and match of all kinds of parts. Good luck with your project. Get cleaning that little monster up.

[oldtime3wheeler]

Thats a great starter trike. Have fun with it.

[jeffatc250r]

Update on the rat. Took it apart a lil bit. The no compression is just merely a stuck exh valve. Cyl is in great shape, so is cam, lifters etc. The frame IS bent at the neck. I figured it would be. No biggie, just gonna straighten it and brace it up. Im 250lbs so its gonna need reinforcements anyways. Seeing as how all I can see wrong with the motor is a lil valve work, im just gonna fix it and run it. The forks are pretty much junk, so Ill be in the market for a set. Also the exh was rotted off at the head, so Ill be lookin for an exh also (hint hint)

;';

[oneroom42]

i have an atc 70 that has the same gas tank stickers on it and its an 83. so i would have to say its an 83 unless the tanks were changed.

[jeffatc250r]

Who knows, engines get swapped, fenders, tanks etc....

The numbers on the frame are jh3tbo300dc8176##

Where are the numbers on the motor?

[jeffatc250r]

As far as reinforcing the frame, my intentions are to straighten out the neck, get a piece of thick wall tubing that has a 2 inch ID and shave a lil off in a lathe to match the OD of the original frame tube. Cut the tube in half and then run it from the front tank mount to where the frame gets boxed in behind the air filter can and weld it right onto the original frame tube on the top. Theres plenty of room as far as tank clearance. Also gonna plate the rear where the grab bar mount is with some 3/16 and weld on ears for the rear grab bar mounts. Any other suggestions-weak spots on these lil buggers?

[MonroeMike]

It's a 83.

Check behind the shifter for the engine serial number.

[jeffatc250r]

Ahhhh, had an inch of crud hiding it,

TBO3E
2818805