Honda cm250tb

A wee rebuild project, last update 19th July 2020

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Email      [email protected]

Address.    A garage somewhere in the Highlands




Welcome to my blog. First time I tried this so here we go.



By hondacm250tb-biker, Dec 3 2018 10:59PM

So these are the after pictures,

A lot tidier, but still needing work. I'm not gonna blast any more, just gonna paint with Matt Black Heat Resist. And going to bead blast the panels and polish them up. I'm told sand blasting leaves sharper dents in the metal which apparently allows the dirt to accumulate quicker. Bead blasting planishes the surface more so it stays cleaner better.

Things I learned:

Clean all the oily crap off first, I probably will use Gunk or petrol on my real engine. You can see from the last of these three pictures that I didnt make a good job of the top of the gearbox casing, should have removed the crap!

Spend some time getting the settings right on the machine. Ended up about 80psi

Be methodical.

Work outside, I wore a mask, the powder does fly but not as bad as a i thought. Cleaned up the residue and the rain will wash the rest away into the garden.

I used Armex XL soda.

By hondacm250tb-biker, Dec 3 2018 10:45PM

Took my engine outside to soda blast it. Apparently, sand blasting will do lots of damage to the engine, as the sand seems to hang around for a long time and get inside. Bought the kit on ebay from Millar Soda Blasting. Michael was very helpful with advice. And I bought good quality soda. Took a bit of time getting pressures etc just at the 'sweet spot'. Didn't use as much soda as I thought I might.

Anyway, this engine is an old one with several bits missing. I'm going to practice on it and then strip it down afterwards.

By hondacm250tb-biker, Feb 27 2018 07:50PM

So been painting the bits for my Honda cm250tb. As it is a bit of a bobber, i decided to pick a colour and picked Mercedes Calcite White, saw it on a car and went in to Merc and checked out the part number. At the same time I painted some bits for my Yamaha. Clean White and Yamaha Black are the correct colours.

17 pieces, three different colours (two whites and a black), three types of paint and one lacquer. Did it all myself under supervision of my brother. There are faults, but I'm delighted with what I did in the four days it took to do it. Still got paint and can now easily have a bash at repairs/changes/improvements etc.

Ye cannae rush it!

By hondacm250tb-biker, Nov 30 2017 09:48PM

So took some time out to visit across the pond and managed to pick up this deal. The guy on ebay wanted 75 dollars to send to the UK. Purchased it in the states including delivery for £20. Mind you my suitcase was opened and inspected. Not surprised really.

By hondacm250tb-biker, Aug 3 2017 06:31PM

So I managed to get the wheels on and took the bike outside for a wee picture. I'm not quite sure what's missing?