MX400B

[Carey W]

I recently posted in the introductions section and will share a resto I'm doing on a MX400B. It looked a bit rough as the paint came off it when it was washed but all bearings, brakes, cables ect are in great condition. The bike sat covered with a tarp for 36 years until 4 weeks ago.
I'm after a silencer and sprocket cover / case for it if anyone can help, I will post photos of the resto and bike here so please feel free to offer help or advice.

The plastics are very chalky and I think beyond repair. Are the plastics from http://www.vmxunlimited.com/categories/Yamaha/MX/Plastics/ good quality reproductions or is there a better / cheaper option.

As she was when I picked it up.



Brakes as they were after 36 years.

[Carey W]

every bolt off to the cad platers along with a few parts not in the pic.


Engine ready to go back in the frame.

[Carey W]

Unfortunately the rims will be replaced with new did dirt stars due to a crack in the rear one. Probably happened 41 years ago in this race! It's bike #171.

[HeavenVMX]

Unfortunately mate VMXUNLIMITED is no more. Les has retired to rest and the very best wishes to him for a long and happy retirement.

Prime8 Racing is now the go. They also have a great WEB page, excellent service and support the VMX / Vinduro community.

http://www.prime8racing.com.au/

Those MX400B engines are FAST!

NOTED: Can not believe that the guy in the second last picture riding the Montesa has the make misspelt on his jersey MONTESSA  WTF

[Carey W]

Good spotting on the Montessa thing, his style looks ok though. Maybe his wife or mum got it wrong!

[80-85 husky]

its great to do up an old bike and find its new inside.

[Carey W]

A couple of rainy weekends helped to speed things up, still after a sprocket case if anyone can help.

[cyclegod]

A couple of rainy weekends helped to speed things up, still after a sprocket case if anyone can help.

Here's 3

http://www.ebay.com.au/itm/1977-YAMAHA-YZ400-YZ-400-ENGINE-SPROCKET-COVER-/401102961302?hash=item5d63997a96:g:fEoAAOSwy5ZXB-AT

http://www.ebay.com.au/itm/1977-YAMAHA-IT-400-SMALL-SPROCKET-COVER-/112033300833?hash=item1a15b48161:g:6gYAAOSwwpdW1kFf

http://www.ebay.com.au/itm/YAMAHA-DT250B-RIGHT-COVER-498-15421-00-00-MX250B-IT400C-75-78-/252242775874?hash=item3abad74f42:g:~bcAAOSwwPhWj-Nq

[Carey W]

A couple of rainy weekends helped to speed things up, still after a sprocket case if anyone can help.

Here's 3

http://www.ebay.com.au/itm/1977-YAMAHA-YZ400-YZ-400-ENGINE-SPROCKET-COVER-/401102961302?hash=item5d63997a96:g:fEoAAOSwy5ZXB-AT

http://www.ebay.com.au/itm/1977-YAMAHA-IT-400-SMALL-SPROCKET-COVER-/112033300833?hash=item1a15b48161:g:6gYAAOSwwpdW1kFf

http://www.ebay.com.au/itm/YAMAHA-DT250B-RIGHT-COVER-498-15421-00-00-MX250B-IT400C-75-78-/252242775874?hash=item3abad74f42:g:~bcAAOSwwPhWj-Nq

Awesome thanks for that, I've searched eBay with only limited parts and did not find these!

[Rossvickicampbell]

If you wish to race it have a look at the combined clutch and sprocket cover from John Tate - think they will fit the 400 also.  If you are interested I have a NOS air box for this model.

Cheers

[Freakshow]

how much for the airbox Ross ? or the used one of this one if he wants it

[Carey W]

Put the pipe back on today and started it up again, started 1st kick.







http://vid1177.photobucket.com/albums/x341/noturbo/Mx400b/IMG_0768.mp4

[Carey W]

Anyone know how to soften the original seat cover? As you can see the creases show up and it leaves creases when you get off the seat.

[Rossvickicampbell]

not much Freaky - $125 - just the body though remember.

[Tomas]

park it outside on a hot sunny day. hot sun will soften the old vinyl