I guess its about time this one made its debut on here... a cool little seventies throwback... a Honda CB125s.
Originally another ebay local bargain, pretty much complete, except for the R/H side panel & a couple of other minor bits... but with bent front forks... a problem that was solved by rebuilding the forks using the stanchons from the early CG125 (they're the same).
The bike has had a copmlete strip down over the past couple of years (including the engine... several times!) the frame etc were stripped back & re-painted, but it was decided to leave the tank... it gives it the look of a cared for old bike... or was it because I couldn't trust myself to get the stickers back on acurately?!!
However, a replacement was sourced & fitted... only for the gasket between the two havles of the crankcase to leak... that was duly replaced & now it leaks at the cylinder base gasket... a new one is standing by, but the leak doesnt seem too bad for now so I'll just monitor the oil level for a bit... can't face taking the engine out again just yet!
..Summer 13
The time came to finally get round to investigating the oil leak at the base of the cylinder...
At some point in its history someone had clumsily tried to remove the barrel by driving a screwdriver between it & the crankcase.... The result was damage to the lower face of the cylinder allowing oil to escape as it gets pumped up to the valve gear via the rear right stud passage way.
Although aftermarket cylinder/piston/ring sets are available, I've yet to find them for sale in UK.... In the meantime I decided to try to machine out the damage, the barrel was mounted in the lathe & a couple of light cuts taken...
It looked ok, so the engine is now being re assembled with new gaskets from Thailand, it remains to be seen if there is enough clearance between the piston & valves or if two cylinder base gaskets will be needed...
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