AC's 1982 RM250 Restoration Project

Some Updates!

njriderac — Mon, 13 Sep 2010 15:04:15 +0000

Sorry for the time inbetween updates..

Items left to complete:

exhaust
need new rear hub
chain, shifter
rear brake pedal & arm
carb hose routing
plastic, plate backgrounds

Gas tank & shock res mount

njriderac — Sun, 24 Jan 2010 23:36:48 +0000

Sanded, buffed, and dressed the gas tank. Pretty happy with the way it came out.. could’ve sanded a bit more but unless your looking at it with a magnifying glass it looks good. Also finally got the shock res mounted. This was a pain as the mount I had got on ebay was bent and didn’t fit – had to reshape and add new pieces to it, and then rubber coated it with plasti-dip

Jan. 10, 2010 Status

njriderac — Sun, 10 Jan 2010 21:10:18 +0000

Sorry for the delay between updates! Shock is in, had some trouble with the reservoir bracket I bought used, it didn’t fit for some reason and had to make some mods to it. Radiators are on.. Looking for a ’83cr250 brake cable and have some issues with the rear hub where the bearing was exploded and carved ruts in the hub…

Motor is in!

njriderac — Thu, 24 Sep 2009 14:03:04 +0000

Finally got the motor in. This entailed some finishing layer coats of paint on the cases (used brake caliper paint, works awesome). Thanks for the tip Lee at onthepiperacing

I also had to complete the install of the new bearings, sleeves, etc. into the swingarm since the bolt runs through the engine cases. I replaced everything here with a new bearing kit from AllBalls and had a tough time getting everything to fit back together. The new dustcaps seemed huge and were creating a clearance issue so I had to grind 1/2 of the cup down so it would clear.

Sorry for the blurry cellphone pics but it was late and didn’t have the camera handy.

Below you can see the tight squeeze and custom dust seal needed:

Status

njriderac — Mon, 21 Sep 2009 19:23:01 +0000

Well things are underway again after that swingarm bearing fiasco. I’ve got the other swingarm now and the bearings are almost all in (it’s not the easiest process). I’ve also painted the bottom end of the motor.

So motor is complete, swingarm ready to go on, most parts purchased. Still need to refinish the gas tank, find or recover the seat, get fenders. Will have some pictures very soon.

It’s a slow moving project but it’s been fun.. right now i’m concentrating on a harescramble in CT this coming weekend but i’m still psyched to finish the RM by the spring. Stay tuned.

Updates Coming Soon

njriderac — Tue, 01 Sep 2009 12:51:25 +0000

It’s been a while so I thought i’d post a status report.

I basically spent all summer attempting to remove the seized bearings from the swingarm. The bearings had basically become one with the swingarm. They were at a local machine shop getting all sorts of attempts at getting them out to no avail – I was forced to purchase another swingarm.

Now that I can continue… updates and pics soon to follow! I finally now can install the new swingarm bearings, mount the swingarm, and the wheels… hopefully all in the same step. Keep it posted!

Motor and Shock Complete

njriderac — Fri, 17 Apr 2009 12:04:55 +0000

I received the motor and shock back from OnThePipeRacing, fully rebuilt. The motor got new bottom & top end complete with new sleave and clutch. The shock was revalved and rebuilt with a new spring.
Lee, the owner of OnThePipeRacing is a great guy and knows these bikes. I highly recommend them.

Recent Purchases

njriderac — Wed, 15 Apr 2009 15:07:54 +0000

I’ll have some new pics soon, motor & shock should be here any day also. In the meantime, here are some purchases over the past month with some prices so you have an idea..

- Dunlop MX51 80/100-21 Front Tire: $69.99
- Dunlop MX51 120/90-18 Rear Tire: $71.99
- Front Br. Cable Clamp for ’83 CR250 Fork: 2 pieces : $10.38
- EBC Br. Shoes Front & Rear: $49
- Dust Seals for Rear Hub & Brake, 4x : $9.08
- NOS Swingarm Shaft: $24.91
- NOS Left Radiator Shroud: $21.55
- NOS Right Radiator Shroud: $26.16

’82 250Z Action Shot

njriderac — Tue, 07 Apr 2009 21:58:01 +0000

Big air shots from the early ’80s are rare, rarer still are 250Z big air shots. If you have any, send them in and i’ll post.

Nice Job

njriderac — Tue, 07 Apr 2009 18:00:28 +0000

I will have an update on my project in the next couple of days with pics… front-end is installed finally. Motor and shock on its way.

In the meantime, here is a fine example of a 250z from Australia. Very nice job on this resto: