CRM250AR Rebuild

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mekros
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Re: CRM250AR Rebuild

Post by mekros » 02 Jun 2014, 20:52

Linkage bearings have lost their cage, all the rolling elements dropped out when I wiped the grease out.

There are generic bearing suppliers here, I've got quotes from them for that, it's the swingarm bolt, rear axle bolt and other bits I'd rather go genuine than work around.

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Re: CRM250AR Rebuild

Post by helisupp » 03 Jun 2014, 16:47

Linkage bearings have NO cage, rollers are loose..

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Re: CRM250AR Rebuild

Post by fallenmikethebike » 03 Jun 2014, 18:27

^^^^^ Possibly they have been changed in the past for something available, rather than OEM.
Mike
VFORCE REEDS-MUGEN HEAD AND BARREL-WHITE POWER-ALL ON MY WISH LIST!!

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Re: CRM250AR Rebuild

Post by mekros » 03 Jun 2014, 20:11

Considering my swingarm bearings were generic bearings that won't surprise me at all, and I'll be going down the generic part.

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Re: CRM250AR Rebuild

Post by helisupp » 03 Jun 2014, 21:30

I think you do have the original bearings, the spacer sleeves form the inner race.

The best way is to fit the XR400 Allballs swingarm bearing kit, as you will also need new bearing sleeves if changing the bearings.

4 bearings, 2 spacer sleeves, 4 seals, all in kit

Image

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Re: CRM250AR Rebuild

Post by mekros » 04 Jun 2014, 21:13

Knowing how some mechanics work/think, I'm not surprised at all if the spacer was recycled and used again.

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Re: CRM250AR Rebuild

Post by mekros » 06 Jul 2014, 20:54

Life has been busy outside of the bike world, over the weekend I managed to break out the heat gun and blind bearing puller:


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Bagged and tagged as usual



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Aluminium spacers will have to be made for this now that I have dimensions.


Parts have been ordered from Honda and are awaiting arrival from Japan. I found it was cheapest to buy from a local dealer, the overseas prices were pretty much on par with the locals before you factor in postage!


The common bearings are the only ones I need to order now.



I forgot my linkage bearings so I'll give them another shot when I get out there again.

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Re: CRM250AR Rebuild

Post by mekros » 10 Jul 2014, 04:00

Does anyone know if the all balls linkage bearing kit will be compatible for the AR?

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Re: CRM250AR Rebuild

Post by mekros » 14 Aug 2014, 20:39

No reply to my question above so I ordered Honda "collars" and generic bearings...

Whilst I was waiting for bits to come in:

My second child was born, now that means even less time to tinker and ride :o

A set of Sun branded XR400 motard rims were bought at a cheap price from a guy that decided to part out his bike.


I've been playing around with what can restore colour to faded plastics:

Image

I learnt that Honda did a swifty with the headstem bearings so you have to be on your toes when ordering the generic part.

When the parts arrived, a local workshop was kind enough to let me use the press so the linkage and headstem bearings are back on, the path to reassembly has begun.

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Re: CRM250AR Rebuild

Post by mekros » 28 Aug 2014, 21:39

I got a chance to work on the bike a fair bit and bearings were pressed in or fitted

Fitting the lower steering race was interesting.
Image

motard wheels test fitted.
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I have three front brake calipers and all of them have different problems so none of them are optimal. I need to rebuild one set. The clearance between the caliper and the rim means it is an outright pain trying to take them on and off, I’ll have to have a motard set up and a dirt set up.

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Re: CRM250AR Rebuild

Post by knackeredMk1 » 28 Aug 2014, 22:06

I had a set of pads for on road and one for off road. I used the thinner, part worn set for the motard setup as they were easier to fit due to the size of the disk.

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Re: CRM250AR Rebuild

Post by mekros » 29 Aug 2014, 00:07

Yeah the thickness of the rotor means I usually leave one pad out, fit the caliper and then slip the pad back in.

Did you also find that the clearance from the caliper to the rim is bugger all?

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Re: CRM250AR Rebuild

Post by knackeredMk1 » 29 Aug 2014, 05:55

Yes. Main reason for the thinner pads as I could get the calliper on without messing about.

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Re: CRM250AR Rebuild

Post by mekros » 28 Dec 2014, 22:32

ok, progress has seriously slowed down with an increase in responsibility at work and two children really do suck up all free time.

I've managed to source some electrical connectors, snap the head off the rear brake bleed nipple after flushing the fluid (drained it by undoing the brake line banjo bolt initially), and some other trouble with the front brake.

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Re: CRM250AR Rebuild

Post by ElectroMotor » 14 Aug 2015, 23:14

Hello My Friend

Im From Cali Colombia and i have a CRM250 1998 but i dont know .. but i think i have an AR Active Radical System.
What do you think ?
http://hondacrm250.blogspot.com/
Thanks.

i Found now, i have a Version MK1 CRM250Rk/k2 (1989-90)

Thanks my Friend


Hey Good Job
Last edited by ElectroMotor on 19 Aug 2015, 14:07, edited 1 time in total.


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