Vintage Dirt Bike Q & A

Ive been rebuilding a couple of MT250 engines for MT projects and hit a snag. The 'complete' gasket kits I bought were, well... not complete... hmm... I reckon they are really 73/74 CR250 kits and as those bikes dont have oil pumps there is no oil pump gasket in the kits, hmm.... there also is no points cover gasket either... so much for complete!?

So I looked online and the oil pump gasket is NLA from Honda so i was wondering if anyone had bought a bunch of MT250 gasket sets over the years for their CR250 and had a stack of useless-to-them oil pump gaskets they didnt want... long shot but you cant blame me for linear thinking..

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MT250 with CR250 top end & Bassani pipe... almost fully restored.

See more of my motorbike builds at my Honda MT250 and Yamaha RD and RZ website, 2Smoked.com

If you like watches, check out my websites: DeskDivers.com & PloProf.com

Looks like they only have a few MT250 gaskets, but the oil pump is one of them:

http://www.gasketgasket.com/sa/cart/detail.asp?pg={C826DF2C-A82F-43CA-B45E-1DF373820EE5}

You'll have to copy and paste the link, this site doesn't like the brackets in the url.

Ray

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'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric, '18 Alta MXR electric

Ray, Ive been trying to reach those guys for a while now but they dont answer their email. The other dodgy thing is that their website comes up as a bad site on my browser as their checkout page certificates are now out of date. Im starting to think they may no longer be in business. hmm...

So still looking for gaskets if anyone has some they dont need...

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MT250 with CR250 top end & Bassani pipe... almost fully restored.

See more of my motorbike builds at my Honda MT250 and Yamaha RD and RZ website, 2Smoked.com

If you like watches, check out my websites: DeskDivers.com & PloProf.com

Can you cut one out of gasket material?

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WWW.CADDY500.COM
The High Performance
Big Block Cadillac Forum

Yes I thought of that, but I couldnt find any gaskets in my stash that had enough meat in them, and with those gaskets online at $1.50 I had hoped to find some, but yes it is an option if i can find some thick enough gasket paper i guess.

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MT250 with CR250 top end & Bassani pipe... almost fully restored.

See more of my motorbike builds at my Honda MT250 and Yamaha RD and RZ website, 2Smoked.com

If you like watches, check out my websites: DeskDivers.com & PloProf.com

Try your local automotive supply store for a roll of gasket material. An X-Acto Knife is helpful in cutting out gaskets.

Good luck
~JM~

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WWW.CADDY500.COM
The High Performance
Big Block Cadillac Forum

put your cover on a scanner and then print it on the gasketpaper.
use a holepunch for the screwholes and after the holes you can cut the gasket out with scissors.

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80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250

Thanks guys. I am in the USA right now driving Route 66, so will have a look at doing this when i get home.

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MT250 with CR250 top end & Bassani pipe... almost fully restored.

See more of my motorbike builds at my Honda MT250 and Yamaha RD and RZ website, 2Smoked.com

If you like watches, check out my websites: DeskDivers.com & PloProf.com

Jon,

I just found a gasket that might be the one you're looking for. It's about 52mm x 27mm, one flat end and one pointed end, with a 13mm center hole and three smaller holes (one is kind of oval-shaped). It looks identical to a gasket in an unopened MT250 gasket kit I have, and also the one in the Honda parts diagram (what I can see of it, anyway).

Let me know where and I can send it to you.

Ray

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'74 CR125M (175cc), '75 MR175, '82 RM250Z, '08 YZ250F, '14 Zero FX electric, '14 Zero MX electric, '18 Alta MXR electric

Ray, Thanks for your kind offer, I dont have a photo of my pump or the gasket on hand since im a long way from home, but it looks like number 6 in the pic below:



I'll drop you a PM if you are happy to send me one, that would be great. Thanks.

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MT250 with CR250 top end & Bassani pipe... almost fully restored.

See more of my motorbike builds at my Honda MT250 and Yamaha RD and RZ website, 2Smoked.com

If you like watches, check out my websites: DeskDivers.com & PloProf.com