81 Cr250 And 82 Axc420

[310huskyTE]

Hi guys, i'm new to the vintage forum of Cafe Husky and have just picked up 2 bikes to restore.
The first ones a 81 CR250,


and the other is a 82 AXC42


Both bikes are in reasonable condition and shouldn't take to much to restore to new, but who knows what i'll find once i start pulling the bikes apart!

 

[Michel Dufayard]

Nice 420 AXC.
Are the 250 side covers white, or are they only white painted ?
Aftermarket ones ?

 

[310huskyTE]

Nice 420 AXC.
Are the 250 side covers white, or are they only white painted ?
Aftermarket ones ?

The side covers are white aftermarket ones, all the plastics on the 250 are broken or very brittle, new ones are on the way!! Along with a whole heap of other stuff.
The 250 is stripped down to just the frame with engine in and swing arm still attached, i cant quite work out how to remove the swing arm, any advice would be appreciated.

 

[Michel Dufayard]

Funny these white plastics !
What is the company who made them ?

 

[adam6402]

The side covers are white aftermarket ones, all the plastics on the 250 are broken or very brittle, new ones are on the way!! Along with a whole heap of other stuff.
The 250 is stripped down to just the frame with engine in and swing arm still attached, i cant quite work out how to remove the swing arm, any advice would be appreciated.

Unfortunately you may have to take some drastic measures as the swingarm bolt and bushings are likely seized up due to the dissimilar metals. It's a common problem, you will likely have to get out the cutting tools.

 

[310huskyTE]

Funny these white plastics !
What is the company who made them ?

Can't tell you who makes the plastics as there's no markings or logos on them at all

 

[310huskyTE]

Unfortunately you may have to take some drastic measures as the swingarm bolt and bushings are likely seized up due to the dissimilar metals. It's a common problem, you will likely have to get out the cutting tools.

Thats what i was afraid of!

 

[jimspac]

Spray what you can get at with PB Blaster or similiar penetrating fluid. What has likely happened is that the distance sleeves, bearing, and swingarm pivot have rusted together into 1 solid object. I have 3 frames that had or have that problem.You will find that the nuts and the pivot rod rotate with the swingarm... not supposed to. I got one out with several day of soaking with PB Blaster,, the other 2 I had to cut the swingarm pivot between the swingarm and the inside of the frame after getting the nuts off each end. After getting the swingarm out of the frame I was able to press it all apart on my hydraulic press. Not fun but I now have 6 swingarms all ready for media blasting, paint, and new bearings and seals. I got 3 used pivot rods from www.huskydoggg.com You will have to look at the frame on the right side as I have several frames that the swingarm pivot hole thru the frame is elongated because of the issue. That is a common repair as well

 

[rustyowldhusky]

it will be nice when you get them up and together,i like the 250,when i compare it with the 71 250 there was a lot of development in 10 years,keep the pics comming

 

[jimspac]

Side covers on the 250 could be DC Plastics

 

[310huskyTE]

Spray what you can get at with PB Blaster or similiar penetrating fluid. What has likely happened is that the distance sleeves, bearing, and swingarm pivot have rusted together into 1 solid object. I have 3 frames that had or have that problem.You will find that the nuts and the pivot rod rotate with the swingarm... not supposed to. I got one out with several day of soaking with PB Blaster,, the other 2 I had to cut the swingarm pivot between the swingarm and the inside of the frame after getting the nuts off each end. After getting the swingarm out of the frame I was able to press it all apart on my hydraulic press. Not fun but I now have 6 swingarms all ready for media blasting, paint, and new bearings and seals. I got 3 used pivot rods from www.huskydoggg.com You will have to look at the frame on the right side as I have several frames that the swingarm pivot hole thru the frame is elongated because of the issue. That is a common repair as well

Thanks for the advice, that's exactly what it's doing, so i've started spraying it with Penetrene. Fingers crossed it will come loose

 

[jimspac]

I just started media blasting my 86 400WR frame today. It was a nice day here(50°) so I spread a tarp on the ground and started working the paint down from where I staterted stripping it about 3 yrs ago. Made some progress but had to stop when the media was clumping from moisture. Did not feel bad about it because an enduro was going past my house for about 1.5 hours. One guy on a KTM 250XC saw me with the barn door open, saw the air compressor and some of the bike so he stopped in and asked for the airhose because his tire was low. Told him I was happy to see so many 2 strokes in the run

 

[NYWR430]

Jimspac,
I use the cheap Harbor Freight yellow tube desiccant filter for my Harbor Freight soda blaster. I have never had any moisture clumping issues.

 

[Puckerbush]

Wow. That soda blaster looks like the hot ticket for removing paint/rust. Just the thing I am looking for. Have you ever used it to blast the old black paint off the engine?

 

[NYWR430]

The HF soda blaster works great. Get the 15lb unit as you will go through soda fairly quickly, and remember to use a 20% off coupon. It is FANTASTIC for removing paint from aluminum and magnesium without harming the softer base metal. I have stripped one Husky engine case of the original paint and it was very time consuming and takes a lot of soda. I don't know what kind of paint they used originally, but it is very thick and very tough. So the bottom line, it works great for hubs, fork lowers, triple clamps, but so-so for engine cases. It does not remove rust very well on steel parts. I use a conventional sandblaster for anything steel.

 

[Puckerbush]

How/where do I get the 20% off coupon?

 

[dukkman]

Nice bikes 310.
Who did you kill to get them

 

[Puckerbush]

It seems the soda blaster would be a good tool to clean up spokes without hurting the finish. If it worked, I would do it on my Harley as well. Those spokes are a pain to clean and so far I haven't found an efficient way to clean them.
Can you adjust the force of the output on the blaster?

 

[310huskyTE]

Nice bikes 310.
Who did you kill to get them

Fortunatley for me i didnt have to kill anyone to get them. I got them from the worlds largest supplier of vintage motocross bikes which is here in Australia, check them out at www.ddr.net.au
As far as my swing arm spindle goes it's definately siezed, im pretty sure i can get the engine out without removing the swing arm, but if someone could actually confirm if it's possible i'd appreciate it

 

[Bengt Husky]

Fortunatley for me i didnt have to kill anyone to get them. I got them from the worlds largest supplier of vintage motocross bikes which is here in Australia, check them out at www.ddr.net.au
As far as my swing arm spindle goes it's definately siezed, im pretty sure i can get the engine out without removing the swing arm, but if someone could actually confirm if it's possible i'd appreciate it

Mate,

You can't get the engine out without getting the swinging arm bolt out. The bolt goes right through the back of the engine cases. I had trouble betting the bolt out of mine when I 1st got it. Soaked the whole area in WD 40 overnight. Then made up a brass drift (same diameter as the swinging arm bolt) and smacked the crap out of it until it budged....

Good luck.