Category Archives: Honda CG125/CG110-1980-Goldie

CG110 engine rebuild

Got my spare CG110 engine reassembled today. It had been left outside in the rain without a spark plug for many years. Itโ€™s had a full rebuild, all bearings and a good used crank. I had the stock 110cc cylinder bored to take a 125cc piston so it should be a bit more peppy now ๐Ÿ˜€ I think the glass bead blasted bits look quite good. Itโ€™s going in my Gold CG with a fancy new exhaust.

Success with blasting

I think Iโ€™ve got close enough to getting the finish I want. Fine crushed glass at 100PSI then glass bead at 60PSI to polish to a satin finish. Yes, I know itโ€™s not as good as vapour blasting but I can do it at home with the limited space I have ๐Ÿ˜€ some before, after crushed glass then after glass bead photos.

CG110 engine ready for installation

CG110 engine rebuilt with NOS cylinder and piston, head decarbonised and valves lapped. New valve stem oil seal too.
A quick coat of paint and itโ€™s all ready for installation in the freshly painted frame tomorrow ๐Ÿ˜€ Beverley reckons Iโ€™m the surgeon and she is the nurse, passing me tools and holding things.
I like playing Doctors and Nurses with Bev ๐Ÿ˜‚

Gold CG failed compliance

Bad news. The Golden CG failed compliance because it was an insurance write off at some point many years ago. To get it road legal will require a repair certificate and it turns out that getting one is very difficult and expensive.
To move forward Iโ€™m going to move everything except the engine to a CG110 frame I already have. Unfortunately I canโ€™t use the CG125 engine in the CG110 frame because it is more than a 15% increase in power. So I have to rebuild the knackered CG110 engine. Iโ€™ve bought a good used crankshaft and NOS cylinder and piston. And new gearbox bearings throughout. Should be a minter ๐Ÿ˜€