Another 1986 CR250 resto

Bret
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Bret 1/11/2011 9:42am
1/11/2011 9:42am
Did you check compression before you took it apart? If the compression is below 180, I would go for a fresh top end.
Stooperbike
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Stooperbike 1/13/2011 8:38am
1/13/2011 8:38am
As far as the bike having no top end, my 86 was the same way and i tried a few things that helped out a bunch. The power valves were not opening all the way, there is a 89 side cover on mine and 86 and 89 power valve cam gizzmo thingy did not match up correctly. It took some work but now the valves open up all the way, this did not make a big differance but helped. I picked up an Answer pipe and Silencer and used high temp RTV silicon to seal the expansion pipe to the cylinder exhaust do-hicky, so there are no leaks. The pipe made a huge difference.
Fatbatster
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Fatbatster 1/14/2011 7:58pm
1/14/2011 7:58pm
Stooperbike wrote:
As far as the bike having no top end, my 86 was the same way and i tried a few things that helped out a bunch...
As far as the bike having no top end, my 86 was the same way and i tried a few things that helped out a bunch. The power valves were not opening all the way, there is a 89 side cover on mine and 86 and 89 power valve cam gizzmo thingy did not match up correctly. It took some work but now the valves open up all the way, this did not make a big differance but helped. I picked up an Answer pipe and Silencer and used high temp RTV silicon to seal the expansion pipe to the cylinder exhaust do-hicky, so there are no leaks. The pipe made a huge difference.
What kind of issue did you have with the '89 cover? When I did mine, I took measurements and everything was spot on with the original '86 cover. Of course the powervalve governor spring cover (aka alternator cover) is different but internally everything was good. Where did you get your Answer pipe? My bike already has the silencer (I think).
Fatbatster
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Fatbatster 1/17/2011 9:56pm
1/17/2011 9:56pm
Here is an update for anyone that cares:

Frame is at the powder coaters
Forks are at Race Tech
Radiators are en route back to me from Mylers radiator
Rear spokes on order from Buchanan's
Front and Rear fenders are on order with UFO
Front number plate and various other small items are on order from Honda
Engine is painted
Front and rear wheel bearings replaced
Blue fork boots on order
Most everything has been cleaned, and prepped for installation (evaporust is a wonderful product)

Still needed:
New seat cover
handlebars
new levers
install new linkage bearings
install swingarm bearings
Repair kickstarter
Repair brake drum interface to brake stay
Repair brake stay interface to frame
Clean exhaust pipe
order decals and numberplate back grounds

Here are some pics, you can see that the dogbone that was on the bike was too long which explains why it sat so low in the rear. The shorter one in the pic is the correct part. Anyone need a lowering link?






The Shop

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Carl_Longhurst 1/20/2011 6:47am
1/20/2011 6:47am
Stooperbike wrote:
As far as the bike having no top end, my 86 was the same way and i tried a few things that helped out a bunch...
As far as the bike having no top end, my 86 was the same way and i tried a few things that helped out a bunch. The power valves were not opening all the way, there is a 89 side cover on mine and 86 and 89 power valve cam gizzmo thingy did not match up correctly. It took some work but now the valves open up all the way, this did not make a big differance but helped. I picked up an Answer pipe and Silencer and used high temp RTV silicon to seal the expansion pipe to the cylinder exhaust do-hicky, so there are no leaks. The pipe made a huge difference.
hi im currently restoring an 86 cr250 and are having problems with my valves opening fully what parts did u change over as ive got a spare 87 assembly
Fatbatster
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Fatbatster 1/27/2011 6:55am
1/27/2011 6:55am
More progress has been made.......



mosslander
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mosslander 1/27/2011 10:49am
1/27/2011 10:49am
Looking good
Stooperbike
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Stooperbike 1/28/2011 12:16pm
1/28/2011 12:16pm
That looks great! I think the 86 CR250 is the most bad ass bike ever. There is something about the way it looks that just means business.

For my powervalves I cannot remember for the life of me what issues i had putting them back together but I think i used the cam mechanism from a 1988 in the 86 and there was some difference with it. But I am really sorry I just cant remember what I did.
mosslander
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mosslander 1/28/2011 6:09pm
1/28/2011 6:09pm
What I remember is changeing for a softer or harder valve operator spring and they was in a set of three , soft open the valve earlier and the hard later and that make you play with the powerband a bit.
Carl_Longhurst 1/31/2011 12:53pm
1/31/2011 12:53pm
[img]http://www.allthingsmoto.com/photopost/data/500/medium/23-1-11_228.JPG" class="img-fluid" />[/img]
Carl_Longhurst 1/31/2011 12:56pm
1/31/2011 12:56pm Edited Date/Time 1/31/2011 1:02pm
looks good mate keep at it mate.
mine seemed to take for ever. almost finshed my restore thought id ad my pic
p.s think i sorted my power valves
Fatbatster
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Fatbatster 1/31/2011 1:36pm
1/31/2011 1:36pm Edited Date/Time 3/14/2012 8:06am
Carl_Longhurst wrote:
looks good mate keep at it mate. mine seemed to take for ever. almost finshed my restore thought id ad my pic p.s think i sorted...
looks good mate keep at it mate.
mine seemed to take for ever. almost finshed my restore thought id ad my pic
p.s think i sorted my power valves
Thanks guys. It is getting down to the nitty gritty now. I installed the rear end last night along with new "custom" bearings and bushings in the brake stay mechanism. My forks should be in on Thursday. I am still waiting on my seat cover and decals.

Carl, your bike looks great! What all did it take to sort out you powervalves?
evomx244
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evomx244 2/1/2011 10:01am
2/1/2011 10:01am
Fatbatster that's my old shock on your bike. Sold it on ebay (lost my ass on it)
Fatbatster
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Fatbatster 2/1/2011 11:13am
2/1/2011 11:13am
evomx244 wrote:
Fatbatster that's my old shock on your bike. Sold it on ebay (lost my ass on it)
Hey, small world huh? Do you know any specifics on it? For instance, was it just a standard rebuild or was it valved for a particular use? Also, is that the stock spring on the shock? I assume that it is but since you are here I figured I would ask. I am replacing the upper bushing due to it being loose but other than that the shock looks good. Thanks again!
Carl_Longhurst 2/1/2011 11:56am
2/1/2011 11:56am
Carl_Longhurst wrote:
looks good mate keep at it mate. mine seemed to take for ever. almost finshed my restore thought id ad my pic p.s think i sorted...
looks good mate keep at it mate.
mine seemed to take for ever. almost finshed my restore thought id ad my pic
p.s think i sorted my power valves
Fatbatster wrote:
Thanks guys. It is getting down to the nitty gritty now. I installed the rear end last night along with new "custom" bearings and bushings in...
Thanks guys. It is getting down to the nitty gritty now. I installed the rear end last night along with new "custom" bearings and bushings in the brake stay mechanism. My forks should be in on Thursday. I am still waiting on my seat cover and decals.

Carl, your bike looks great! What all did it take to sort out you powervalves?
cheers mate
i found a sheered pinion shaft had to get a complete 87 assembley off ebay
RODYZF250 2/2/2011 3:39am
2/2/2011 3:39am
Here it is my 86 CR 250, completely restored after buying it from a SOB in England that said the bike was in great shape but when I received the bike it was wasted: completely destroyed water pump, cracked cylinder, rust in the engine, destroyed rims.
Spent a lot of $$$ on the bike but I think that the result is OK.


















AZ35
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AZ35 2/2/2011 3:59am
2/2/2011 3:59am
Damn..... that is a GREAT looking bike!

Congratulations on your new toy, nice job!

P.S.- If you ever get bored of it, it has a home here in AZ that would love to have it!
evomx244
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evomx244 2/2/2011 5:09am
2/2/2011 5:09am
FB-The shock was just a straight rebuild from Mx-Tech. They did send it out the shaft for rechromingt. Stock spring as far as i know, it worked well, I might have used it 5 times. I found an Ohlins on ebay for cheap and had it rebuilt. My 86 has changed hands with a few guys on this site. I believe Randy Smith now has it.

Pit Row

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Fatbatster
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Fatbatster 2/2/2011 7:13am
2/2/2011 7:13am
evomx244 wrote:
FB-The shock was just a straight rebuild from Mx-Tech. They did send it out the shaft for rechromingt. Stock spring as far as i know, it...
FB-The shock was just a straight rebuild from Mx-Tech. They did send it out the shaft for rechromingt. Stock spring as far as i know, it worked well, I might have used it 5 times. I found an Ohlins on ebay for cheap and had it rebuilt. My 86 has changed hands with a few guys on this site. I believe Randy Smith now has it.
Thanks EVO.

What is the big "to do" with the Ohlins shock? I have heard quite a few people sing their praises. Are they really that much better?
koolstrike 2/2/2011 7:43am
2/2/2011 7:43am
I don't know if Ohlins are THAT much better, but if anybody is interested I have a White Power Shock that came off my 1986 CR250 that needs rebuilding that I am looking to sell CHEAP.

If interested just post.
Carl_Longhurst 2/2/2011 12:08pm
2/2/2011 12:08pm
nice bike mate its surprising how much money you can spend it ends up being one after another
mosslander
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mosslander 2/2/2011 4:32pm
2/2/2011 4:32pm
RODYZF250 wrote:
Here it is my 86 CR 250, completely restored after buying it from a SOB in England that said the bike was in great shape but...
Here it is my 86 CR 250, completely restored after buying it from a SOB in England that said the bike was in great shape but when I received the bike it was wasted: completely destroyed water pump, cracked cylinder, rust in the engine, destroyed rims.
Spent a lot of $$$ on the bike but I think that the result is OK.


















Wow that is a sweet ! nice work man
Fatbatster
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Fatbatster 2/3/2011 11:41am
2/3/2011 11:41am Edited Date/Time 2/3/2011 11:47am
More progress.

I got the forks this morning.
Still waiting on decals and seat cover.
Still working on restoring the Pro Circuit pipe.

Thats baby powder all over the rim and tire.
Fatbatster
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Fatbatster 2/4/2011 8:54am
2/4/2011 8:54am
Sooooo close.

Fatbatster
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Fatbatster 2/4/2011 8:56am
2/4/2011 8:56am Edited Date/Time 2/4/2011 8:57am
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clkwrkorg36 2/4/2011 11:28am
2/4/2011 11:28am
What kind and color of paint did you use on the frame? Also on that piston scoring sometimes it's from the bike being ridden before it's completely warm.
Fatbatster
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Fatbatster 2/4/2011 11:40am
2/4/2011 11:40am
The frame is a standard powder coat color RAL2002. I have decided not to worry about the piston. Eventually it will need attention but it still runs pretty good for now........plus I am out of money =)
mosslander
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mosslander 2/5/2011 10:42am
2/5/2011 10:42am
what brand are the footpegs becouse I need new for my 86 cr
Fatbatster
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Fatbatster 2/7/2011 6:42am
2/7/2011 6:42am
mosslander wrote:
what brand are the footpegs becouse I need new for my 86 cr
Those are pegs off of a YZ426 but they are the same on all of the later model YZ and WR models (as far as I know). All you have to do is cut off the extensions where the pin slides through and they fit right in. I was even able to use the original Honda springs.
mosslander
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mosslander 2/8/2011 11:38am
2/8/2011 11:38am
mosslander wrote:
what brand are the footpegs becouse I need new for my 86 cr
Fatbatster wrote:
Those are pegs off of a YZ426 but they are the same on all of the later model YZ and WR models (as far as I...
Those are pegs off of a YZ426 but they are the same on all of the later model YZ and WR models (as far as I know). All you have to do is cut off the extensions where the pin slides through and they fit right in. I was even able to use the original Honda springs.
thank's Fatbatster I will order new Athena pegs directly.

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