Vintage Dirt Bike Q & A

picked up a 76 mr175 in great shape. the only problem is the tank and carb were unusable. I found a 77 xl175 carb and it actually fits, just dont know if it will work. I'm still looking for a tank and was wondering if anyone knows what other models tank would be a sure fit.I was thinking a mt tank or maybe a mr250 tank because it has no petcock to worry about.I kinda would like to use a plastic tank if it has a good fit.any ideas??

Brian,

The XL175 carb may work, although the jetting looks really lean for the MR so you'd probably have to change that. If you already have it, you might as well try it.

The stock 28mm MR175 carb was used on several models (MT250, FL250, early CR125M) and shows up all the time on eBay. I've gotten a few of them there for about $20 to $30 shipped.

I believe the CR125M and MT125 tanks may bolt right on (I'm not 100% sure), but when I test-fitted my CR tank I found it was much narrower than the MR seat, and looked strange. The Clarke 11362 plastic tank l use on my bike looks great and holds a lot of gas, but it isn't cheap (I paid $209 for one, plus $150 for a spare one I'll never use). It requires drilling a hole through the frame gussets to mount properly.

Here's a pic:

http://i399.photobucket.com/albums/pp74 ... 010001.jpg

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

thanks for the info. i didnt know about the clarke 11362. your bike looks great.