Author Topic: 1985 Maico GM250  (Read 8512 times)

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Offline Brooksie

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1985 Maico GM250
« on: March 29, 2013, 01:33:29 AM »
Not exactly Vinduro but that's what it's going to be used for. Decided while this thing was in the way to start tearing it down for a rebuild. At the moment I had 4 projects on the go so why not make it 5. The bike has brought out a few hidden gems also along the way. Not sure on the exact numbers of these made for the Australian market, as the M Star as they were known on the US market. This bike is #268 off the production line.
   Rims are beautiful for 31 year old rims stamped 2/82 and I'm tossing up even to have them re-anodized or not. Managed to locate some Nos plastics, the front is UFO but is available. More pics to come.




Offline edgarrison

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Re: 1985 Maico GM250
« Reply #1 on: March 29, 2013, 08:57:10 PM »
I've always wanted a Maico,myself.Looks like IT's actually not in to bad of condition. Looks solid.
2002 KTM 300EXC , 2002 Yamaha YZ426F , 1989 Kawasaki KX500 , 1982 Yamaha YZ490J , 1982 Yamaha YZ100J , 1978 Yamaha YZ400E , 1976 Suzuki RM370B

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #2 on: March 30, 2013, 02:04:05 AM »
Ed yeah it looks rough but is actually pretty good. I've just come in from the shed, just pulled out the swingarm and linkages. This model uses teflon bushes in the linkages, no needle rollers. I have a supplier in Germany and the Netherlands who has about everything I need.
   Got my sand blaster up and running again so I should have the frame blasted tomorrow and then some primer. I'm doing the CR aswell while the paint gun out.

Offline edgarrison

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Re: 1985 Maico GM250
« Reply #3 on: March 30, 2013, 02:10:27 AM »
You might as well do them both. I am stripping down the PE400 this weekend, sanding down the frame,and priming it.
2002 KTM 300EXC , 2002 Yamaha YZ426F , 1989 Kawasaki KX500 , 1982 Yamaha YZ490J , 1982 Yamaha YZ100J , 1978 Yamaha YZ400E , 1976 Suzuki RM370B

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #4 on: March 30, 2013, 02:14:20 AM »
Wasting no time I see on the PE Hey Ed. Are you still working on the KX and YZ?

Offline edgarrison

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Re: 1985 Maico GM250
« Reply #5 on: March 30, 2013, 05:22:07 PM »
Yes I am. The YZ's motor is being rebuilt as we speak.The KX125,i still haven't found the airbox for it,or the valve that goes in the monoshock.Once those tasks are completed,the bikes will be complete,aside from new front brakes for both.caliper and mastercylinder.
2002 KTM 300EXC , 2002 Yamaha YZ426F , 1989 Kawasaki KX500 , 1982 Yamaha YZ490J , 1982 Yamaha YZ100J , 1978 Yamaha YZ400E , 1976 Suzuki RM370B

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #6 on: June 26, 2013, 02:07:55 AM »
Some pics soon. Just picked a Nos seat cover for my SC 490 and a new chain slider for the GM aswell as some  really nice used radiators, all from the mother land. Linkages all polished up, saughting some new bushes and going through engine stuff. Found a heavily ported barrel marked PR#48. This could only mean porting genius Paul Rooney. Compared to a standard barrel this thing is out there. Keen to see how it goes.
  Most of the plating is done. Aim is to get it back to a roller again.

Offline dkupf

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Re: 1985 Maico GM250
« Reply #7 on: July 03, 2013, 10:36:58 PM »
Hey Brooksie. were about's are you getting the Teflon bushes for the linkages from??? I need some for my GM250gs. Darcy

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #8 on: July 03, 2013, 11:24:00 PM »
Haven't found them yet Darcy. Maico Only in the UK list swingarm bearings but mine are fine to go again. On closer inspection a couple of mine are bronze bushes. I'll let you know what I can find out from Kostler Maico in Germany. I still have a few more guys to try otherwise I'll try to match seals, bushes and shafts at BSC motion bearings. They are pretty good at getting the unusual stuff.

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #9 on: April 10, 2014, 12:18:36 AM »
Bit of an update. Managed to track down all the linkage bushes today. The factory spec was teflon bearings but after pressing the linkages apart I found they were all metal backed bronze bushes. To me looked like they had been in there for 25years and they were German bearings. My guess is with Maico's state of disarray in 1985 and quality control...Hmmmm ::) I reckon they fitted whatever. Still have to get the shafts made but Stacker Motorcycles can do that. The shafts look about the same dimension as an IT465 gudgeon pin, so I'll check that possibility first. Most parts are all plated ready to go, still a long way off but some pics soon.

Offline Ducman

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Re: 1985 Maico GM250
« Reply #10 on: July 02, 2014, 09:19:23 AM »
 Brooksie,
nice find.I bought one new in late 84 with drum brake frame #156 also a mx model.Some bloody idiots nicked the bike out of my garage,that was it.Never saw it again.No money from the inscurance.One of me mates from Aberdeen/Sco.just bougt 2 of them over here 85 models to restore them.
Cheers:Mike
We are on this planet for a good time,not for a long time.
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Offline dalesween

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Re: 1985 Maico GM250
« Reply #11 on: July 08, 2014, 10:54:57 PM »
Brooksie, Stacker's Motorcycles are next door to my work in Heidelberg West,they have some droolworthy machinery in there at any time,there was a 500 version of your bike in there not long ago and it was mint.

Dale.

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #12 on: July 08, 2014, 11:41:31 PM »
Brooksie,
nice find.I bought one new in late 84 with drum brake frame #156 also a mx model.Some bloody idiots nicked the bike out of my garage,that was it.Never saw it again.No money from the inscurance.One of me mates from Aberdeen/Sco.just bougt 2 of them over here 85 models to restore them.
Cheers:Mike

Sorry to hear about your bike Mike. I know that feeling, had a 81 RM125 stolen many years ago. Never saw it again. I love the look of the 85 model. They weren't the best 250cc bike of that era but had bulk hp and could beat most bikes in a drag race according to the tests of the time. I also have 84 SC250 (Enduro) that I bought with this bike. I recently picked up a really nice running engine to pop into that chassis to make it a goer.
Just doing bits and pieces on this one as parts and money come to hand. Have you got any pics of your old Maico?

Offline Brooksie

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Re: 1985 Maico GM250
« Reply #13 on: July 08, 2014, 11:45:23 PM »
Brooksie, Stacker's Motorcycles are next door to my work in Heidelberg West,they have some droolworthy machinery in there at any time,there was a 500 version of your bike in there not long ago and it was mint.

Dale.

Small world hey Dale. I'd be in there buying parts all the time if I worked that close. Pretty sure the GM500  belongs to Paul Stacker and I think he uses it at a few events.

Offline GAD

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Re: 1985 Maico GM250
« Reply #14 on: March 06, 2015, 10:24:03 PM »
Brooksie- did you ever finish this one off. If love to see done photos if you did.