87’ CR250 restoration

mwr
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mwr 12/31/2018 12:54pm
12/31/2018 12:54pm
For UFO, anything with the -121 suffix is Flash Red.
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Mark_Lynch
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Mark_Lynch 1/1/2019 9:27am
1/1/2019 9:27am
Doing some brake work and found that the brake insulators are not available, so looks like I’ll be making those. I’ll post them if I can get them done in the next couple of days.

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FarleyMX25
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FarleyMX25 1/1/2019 5:19pm
1/1/2019 5:19pm
Mark_Lynch wrote:
Parts, parts, and more parts. There’s not a nut, washer, bolt, or anything else that hasn’t been either media blasted, cleaned on a wire wheel, or...
Parts, parts, and more parts. There’s not a nut, washer, bolt, or anything else that hasn’t been either media blasted, cleaned on a wire wheel, or just replaced. Lot of working hours on these parts. Still some had further work in the media blaster after these pics


















what products and process did you use to clean up your rubber and electronics? they look great

The Shop

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Brian_Bowles
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Brian_Bowles 1/1/2019 6:59pm
1/1/2019 6:59pm Edited Date/Time 1/1/2019 7:04pm
I just realized you have rear disc brakes. I guess 1987 was the first year for that. My 1986 CR125 has rear drum brakes. Can you run vintage with front and rear disc brakes?
So you went to Alabama to get the bike. You need to come back to Alabama next fall for The Barber Vintage Motorcycle Festival. I live in Augusta GA and we went this past fall. It was awesome!
1
mosslander 1 1/2/2019 2:39pm
1/2/2019 2:39pm

87 250 great and bulletprof bike I had for years in vet racing , nice resto there Mark .
4
Mark_Lynch
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Mark_Lynch 1/2/2019 4:41pm
1/2/2019 4:41pm
Mark_Lynch wrote:
Parts, parts, and more parts. There’s not a nut, washer, bolt, or anything else that hasn’t been either media blasted, cleaned on a wire wheel, or...
Parts, parts, and more parts. There’s not a nut, washer, bolt, or anything else that hasn’t been either media blasted, cleaned on a wire wheel, or just replaced. Lot of working hours on these parts. Still some had further work in the media blaster after these pics


















FarleyMX25 wrote:
what products and process did you use to clean up your rubber and electronics? they look great
No real process here, just a mixture of simple green and Krud Kutter. It cleaned off pretty easy really
Mark_Lynch
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Mark_Lynch 1/2/2019 4:42pm
1/2/2019 4:42pm
mosslander 1 wrote:
[img]https://p.vitalmx.com/photos/forums/2019/01/02/315254/s1200_IMG_0568.jpg[/img] 87 250 great and bulletprof bike I had for years in vet racing , nice resto there Mark .

87 250 great and bulletprof bike I had for years in vet racing , nice resto there Mark .
Thank you.. sweet bike there !
1
NoMuff2Tuff
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NoMuff2Tuff 1/2/2019 8:48pm
1/2/2019 8:48pm
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and effort is involved. I'm in the process restoring a 82 RM125 and I found something that helps preserve any aluminum that has been restored for cosmetic appearance like fork tubes, swing arms and triple trees. I'm sure you know once the aluminum is sanded, scotch brite etc., the factory protective coating will be removed and the aluminum will easily water spot and oxidize. There is a product I found called "Shine Seal" and have used it on polished and satin finished bare aluminum with excellent results. It's a chemical that stops the oxidation process, seals the aluminum and prevents water spots for up to a year or longer. Its a great product if your not having the aluminum part professionally coated. Keep the updates of the bike coming!!
3
Mark_Lynch
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Mark_Lynch 1/3/2019 6:34am
1/3/2019 6:34am
NoMuff2Tuff wrote:
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and...
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and effort is involved. I'm in the process restoring a 82 RM125 and I found something that helps preserve any aluminum that has been restored for cosmetic appearance like fork tubes, swing arms and triple trees. I'm sure you know once the aluminum is sanded, scotch brite etc., the factory protective coating will be removed and the aluminum will easily water spot and oxidize. There is a product I found called "Shine Seal" and have used it on polished and satin finished bare aluminum with excellent results. It's a chemical that stops the oxidation process, seals the aluminum and prevents water spots for up to a year or longer. Its a great product if your not having the aluminum part professionally coated. Keep the updates of the bike coming!!
Thank you for your comments. Your right, it is a big time commitment. Lots of hours logged. But you don’t do it unless you love it. Thanks for the tip. I’ve never heard of that product. I use Alodine 1001 on everything I can. Basically does the same thing as it goes on clear if you don’t leave it on too long, unlike Alodine 1200 which produces a gold color. We use both products in aircraft maintenance. Sounds like you have a good project going also. Thanks and send a pic if you can
mosslander 1 1/3/2019 3:12pm
1/3/2019 3:12pm
mosslander 1 wrote:
[img]https://p.vitalmx.com/photos/forums/2019/01/02/315254/s1200_IMG_0568.jpg[/img] 87 250 great and bulletprof bike I had for years in vet racing , nice resto there Mark .

87 250 great and bulletprof bike I had for years in vet racing , nice resto there Mark .
Mark_Lynch wrote:
Thank you.. sweet bike there !
That engine was magic , it had no rev limit , holeshot killer , sold it for class change to twinshock .
1
Pirate421
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Pirate421 1/3/2019 5:14pm
1/3/2019 5:14pm
Nice build. They are fun and a challenge but super satisfying when you’re done and kick it over for the first time. Here’s the 89 I did for inspiration.

2
NoMuff2Tuff
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NoMuff2Tuff 1/3/2019 7:15pm
1/3/2019 7:15pm
NoMuff2Tuff wrote:
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and...
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and effort is involved. I'm in the process restoring a 82 RM125 and I found something that helps preserve any aluminum that has been restored for cosmetic appearance like fork tubes, swing arms and triple trees. I'm sure you know once the aluminum is sanded, scotch brite etc., the factory protective coating will be removed and the aluminum will easily water spot and oxidize. There is a product I found called "Shine Seal" and have used it on polished and satin finished bare aluminum with excellent results. It's a chemical that stops the oxidation process, seals the aluminum and prevents water spots for up to a year or longer. Its a great product if your not having the aluminum part professionally coated. Keep the updates of the bike coming!!
Mark_Lynch wrote:
Thank you for your comments. Your right, it is a big time commitment. Lots of hours logged. But you don’t do it unless you love it...
Thank you for your comments. Your right, it is a big time commitment. Lots of hours logged. But you don’t do it unless you love it. Thanks for the tip. I’ve never heard of that product. I use Alodine 1001 on everything I can. Basically does the same thing as it goes on clear if you don’t leave it on too long, unlike Alodine 1200 which produces a gold color. We use both products in aircraft maintenance. Sounds like you have a good project going also. Thanks and send a pic if you can






The RM, A little rough but pretty much was all original and running from the original owner. Thanks for tip on the Alodine, will definitely look into it
6
Mark_Lynch
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Mark_Lynch 1/4/2019 5:54am
1/4/2019 5:54am
NoMuff2Tuff wrote:
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and...
Mark, I tip my hat to you on the bike restoration, it's coming out great!!! Most people haven't a clue on how much work, time and effort is involved. I'm in the process restoring a 82 RM125 and I found something that helps preserve any aluminum that has been restored for cosmetic appearance like fork tubes, swing arms and triple trees. I'm sure you know once the aluminum is sanded, scotch brite etc., the factory protective coating will be removed and the aluminum will easily water spot and oxidize. There is a product I found called "Shine Seal" and have used it on polished and satin finished bare aluminum with excellent results. It's a chemical that stops the oxidation process, seals the aluminum and prevents water spots for up to a year or longer. Its a great product if your not having the aluminum part professionally coated. Keep the updates of the bike coming!!
Mark_Lynch wrote:
Thank you for your comments. Your right, it is a big time commitment. Lots of hours logged. But you don’t do it unless you love it...
Thank you for your comments. Your right, it is a big time commitment. Lots of hours logged. But you don’t do it unless you love it. Thanks for the tip. I’ve never heard of that product. I use Alodine 1001 on everything I can. Basically does the same thing as it goes on clear if you don’t leave it on too long, unlike Alodine 1200 which produces a gold color. We use both products in aircraft maintenance. Sounds like you have a good project going also. Thanks and send a pic if you can
NoMuff2Tuff wrote:
[img]https://p.vitalmx.com/photos/forums/2019/01/03/315531/s1200_RM_12.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2019/01/03/315534/s1200_RM_6.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2019/01/03/315532/s1200_RM17.jpg[/img] [img]https://p.vitalmx.com/photos/forums/2019/01/03/315533/s1200_RM_1.jpg[/img] The RM, A little rough but pretty much was all original and running from the original owner. Thanks for tip on the...






The RM, A little rough but pretty much was all original and running from the original owner. Thanks for tip on the Alodine, will definitely look into it
Nice build....don't know much about the RM. The last Suzuki I had was a TM100 back in the day. Funny seeing that bike in the house...ha. But that's where I'd have mine if I could
Brian_Bowles
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Brian_Bowles 1/4/2019 9:52am
1/4/2019 9:52am
My wife would not allow that! Paint looks great on the RM engine. Is that powder coated?
Mark_Lynch
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Mark_Lynch 1/4/2019 1:07pm
1/4/2019 1:07pm
Yes I noticed the engine paint also. I thought it looked great. I got my cylinder painted yesterday and fabricated some brake insulators that I think will work good. Looks like I might get started putting the engine back together next week. Got the seat cover in and a few OEM parts, so some good progress might be made in the next few days

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Brian_Bowles
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Brian_Bowles 1/4/2019 1:13pm
1/4/2019 1:13pm
It looks good Mark. did you have I powder coated? How did you get the power valve area so clean?
Mark_Lynch
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Mark_Lynch 1/4/2019 2:26pm
1/4/2019 2:26pm
Brian_Bowles wrote:
It looks good Mark. did you have I powder coated? How did you get the power valve area so clean?
Thanks Brian. No I painted it myself and put it in the oven at work for a couple hours. I used high heat ceramic primer and the Duplicolor DE1634 low gloss black. I swear by that Duplicolor. It’s good paint and easy to use. I had previously sent my cylinder to Powerseal USA to have it re-plated and honed to match my new stock bore piston. They media blast everything first to get It clean. I think it turned out pretty good. Got a lot of work to do now, but looking forward to getting the engine together and installed soon
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NoMuff2Tuff
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NoMuff2Tuff 1/4/2019 4:11pm
1/4/2019 4:11pm
Brian_Bowles wrote:
My wife would not allow that! Paint looks great on the RM engine. Is that powder coated?
Yes, everything that could be powder coated is, cases, frames, hubs, brake pedal, pull rods etc. The cases took a lot of time and prep work but it was worth it and yes I get yelled at lot. “That bike needs to go back in the shop TODAY” LOL
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Rupert X
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Rupert X 1/5/2019 3:29am
1/5/2019 3:29am
I, too am restoring an ‘87. Mine will not be near as nice as yours though. Long story, mine was a friend’s bike we recovered from theft..., anyway, found a NOS front fender at Motorsport, plus lots of other nuts bolts etc. VMX has some shtuff too.
4
Rupert X
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Rupert X 1/5/2019 5:45am
1/5/2019 5:45am
*Ive got both 89 and 1991 CR 250 parts for sale, too...
bonseff
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bonseff 1/5/2019 8:23am
1/5/2019 8:23am
Rupert X wrote:
*Ive got both 89 and 1991 CR 250 parts for sale, too... [img]https://p.vitalmx.com/photos/forums/2019/01/05/315946/s1200_7D920514_8F68_4CB7_8C72_144028952747.jpg[/img]
*Ive got both 89 and 1991 CR 250 parts for sale, too...
Do you have a linkage arm for the 89?
I am loving these 80's CR builds!
Post your progress, please.
1
Mark_Lynch
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Mark_Lynch 1/5/2019 8:27am
1/5/2019 8:27am
Rupert X wrote:
I, too am restoring an ‘87. Mine will not be near as nice as yours though. Long story, mine was a friend’s bike we recovered from...
I, too am restoring an ‘87. Mine will not be near as nice as yours though. Long story, mine was a friend’s bike we recovered from theft..., anyway, found a NOS front fender at Motorsport, plus lots of other nuts bolts etc. VMX has some shtuff too.
What do you mean...not as nice.? That bike looks really nice so far. Not sure where your located, but if you have parts for 89-91 bikes, you should post them on TVRC (Texas Vintage Racing Club) website. There are always guys looking for good cr parts. Keep me updated on your build. That thing looks awesome so far
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Mark_Lynch
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Mark_Lynch 1/5/2019 8:30am
1/5/2019 8:30am
Rupert X wrote:
*Ive got both 89 and 1991 CR 250 parts for sale, too... [img]https://p.vitalmx.com/photos/forums/2019/01/05/315946/s1200_7D920514_8F68_4CB7_8C72_144028952747.jpg[/img]
*Ive got both 89 and 1991 CR 250 parts for sale, too...
bonseff wrote:
Do you have a linkage arm for the 89?
I am loving these 80's CR builds!
Post your progress, please.
I don’t .... but you can find some parts from accessing the members on TVRC ( Texas Vintage Racing Club). Or look at Vintage clubs near you. These are the guys who know where parts are
Rupert X
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Rupert X 1/5/2019 9:52am
1/5/2019 9:52am
Rupert X wrote:
*Ive got both 89 and 1991 CR 250 parts for sale, too... [img]https://p.vitalmx.com/photos/forums/2019/01/05/315946/s1200_7D920514_8F68_4CB7_8C72_144028952747.jpg[/img]
*Ive got both 89 and 1991 CR 250 parts for sale, too...
bonseff wrote:
Do you have a linkage arm for the 89?
I am loving these 80's CR builds!
Post your progress, please.
I do, sir. With complete swing arm.
bonseff
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bonseff 1/5/2019 10:28am
1/5/2019 10:28am


I am building a 89 125, but I just need this part, curious if you would part with it.
Rupert X
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Rupert X 1/5/2019 12:16pm
1/5/2019 12:16pm
bonseff wrote:
[img]https://p.vitalmx.com/photos/forums/2018/10/16/296037/s1200_IMG_4065.jpg[/img] I am building a 89 125, but I just need this part, curious if you would part with it.


I am building a 89 125, but I just need this part, curious if you would part with it.
are you close to Central Ohio ?
Brian_Bowles
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Brian_Bowles 1/5/2019 12:21pm
1/5/2019 12:21pm
If not I have one and I am in Georgia.
Mark_Lynch
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Mark_Lynch 1/6/2019 4:52pm
1/6/2019 4:52pm
Painted the engine today with ceramic coated primer and the DE 1634 low gloss black. I think it turned out pretty good. Waiting on a couple of seals so I can start putting it back together



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Mark_Lynch
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Mark_Lynch 1/6/2019 7:06pm
1/6/2019 7:06pm
Working on the seat


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