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Dear Plagrone, Yes, the end caps have the grease seal in it. And Indeed I also thought that the frame might be bend. We had so much trouble getting the old rusted axle out, we beat the head and the bolt quitte hard.... But then again, the thread of (nos) axle is 2 mm out of the nut so the width...

Hello, I am busy trying to put my CB250 together. Now I think there is something peculiar with the swing arm. The arm has 3 - 4 mm play between the seal and the frame. I cannot see any washers on the exploded views so what could cause the problem? And the solution? Put some washers on the left...

Hello, I recently bought an engine with a good cam chain guide to save my 'first' engine. But now I want to save both engines.... So I thought about repairing the broken guide. I asked my colleague Nico if he could weld the two pieces but he was sure the heat would destroy the guide. He...

A CB250g engine is the same as a CB360(g) engine, except for the bore etc. The engine is different from the earlier CB250 engines. However the CB250g piston 13101403000 and/or 13101367000 are superseded by 13101286040 and this nr is also shown for the standard CB250k(..) piston on the pages of...

Hello all, After I have found a good camchain damper I am now ready to rebuild my CB250g engine. Normally I would install new piston rings but CMSNL doubled the price of a set of rings (formerly 35 Euro for 2 pistons but now they charge 35 Euro for only one piston). I think that 70 euro for...

Thanks very much for your answer! I will post some pics of the engine in the near future. Bye! Anton

Hello. I recently bought a CB250g. The engine was supposed to be OK but I discovered the cam chain guide was broken in two. Luckily I was able to buy another engine with a good guide for 100€. However: Engine II has a different cam tensioner than my first engine (I). Engine II has 2 marks...

The cam mod is working perfectly. The tacho oil leak is also gone now thanks to the new oil seal. Just rode a few Km in Rijswijk and Delft.... it's a slow slow bike but fun to drive. Thanks Bert Jan!

Hello and thanks for your replies! Indeed I am from the Netherlands, pardon my French. Before thinking of the bearing conversion I would like to know how the oil is supposed to flow and how to check it. Are there perhaps more simple mods than converting to needle / roller bearings? Pictures...

Hello all, A few months ago I bought a CB200 for 200 Euro's. It was not running well and had low pressure on the right cylinder. So I took of the head and cylinder to check things. The pistons were okay but the valves where not. I 'grinded' the valves and cleaned the head. I also sandblasted...