Vintage Dirt Bike Q & A

So I cleaned up the carb on my 75 Mr175 that I got as a sort of basket case (all the parts are there and assembled in the general form of a dirtbike, but it's a basket case). Piston is free and seems to have compression, so I decided to remove the duct tape that was on the tank, give her some gas and see if she'll start....however, one side has bondo-covered holes, and on the other side, there were rags stuffed in the holes and the duct tape was holding the rags in place!

The asking prices on ebay are insane! Anyone got one to sell? Doesn't have to be great; just hold gas...

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1974 Honda MR175, 1974 Honda MT250, 2003 Honda CRF150, 2003 Suzuki DRZ125, 2005 KTM 250 SXF

You might want to rig up some kind of small temporary tank for now, in case things don't go well with the motor.

Perhaps you already know the MT125 and CR125M tanks fit your bike too, which gives you a few more options on eBay. I don't think you'll find a usable-as-is (i.e., not rusty inside, or coated) OEM tank there for less than $100.

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

I forgot to search for those too. I will try that. I think the cheapest one I found would need a thorough cleaning on the inside, but I am not so concerned how the outside looks. First, I will drag it to my buddy's bike shop and hook it up the 'IV' as I like to call it. Thanks for the advice.

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1974 Honda MR175, 1974 Honda MT250, 2003 Honda CRF150, 2003 Suzuki DRZ125, 2005 KTM 250 SXF

A good tig welder can maybe repair it. The one on my '74 CR125 was rusty at the bottom and after grinding the rust, I found myself with many small holes. My friend who do tig welding, did a nice repair job to it. If the hole is too big, a small piece of metal can also be welded.

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1974 Honda CR125M - 1977 Honda CB750 - 1982 Yamaha XT550 - 1986 Honda TLR200 - 2016 Honda CRF1000L Africa Twin- 2012 Ossa TR280i

It runs! Hallelujah. Needs a little tuning but it runs. So I have a tank but it's quite rusty, so I am going to clean it. How does the petcock come off? Doesn't seem to have screws holding it on....? Also need to find a left side switch housing as the kill switch wire is just hanging loose.

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1974 Honda MR175, 1974 Honda MT250, 2003 Honda CRF150, 2003 Suzuki DRZ125, 2005 KTM 250 SXF