My first motorbike was a CB125s, 1974. I'd been into scooters, Lamb's, Li 125, Li 150, 75cc cometa, TV200. Kickshaft sheared and I rebuilt my first Cb125 engine. Many years later, I still have the same bike, I can't let it go. I have rebuilt many of these classic little thumpers, including Sl's and Tl's. So simple and reliable. Love the videos, nostalgia really. Great presentation as anyone can follow the process in detail. Those crosshead screws are a pain, so often rounded, easily done. CG's are a great cheap project, especially with CDI. Just getting another TL fettled. Its not going to be trialed, I'll slip a cb gearbox in. Great stuff Richard.
Thanks for the comment John. You are right about these being great little engines, simple and reliable. Starts second or third kick even if left for a month. Regarding the lambrettas , I really fancy a classic scooter project some time, problem is they are getting expensive,even in basket case condition.
@@richardjweeks In the seventies you couldn't give them away. 30 quid was the most I paid. Loved the little Cometa I had ( very rare along with its sibling the Vega ). In the Honda the fact that the camshaft runs in an aluminium housing without bearings does my head in.
Dear sir, at the moment i am renovating a 1976 CB125J which is fitted with a 1976 CG125 engine. All the bits have been restored and i am now putting it back together. Wheels are now stainless steel spokes and rims and all the paint and chrome has been done. To many new bits to list. If you are in England and need Honda stuff check out Dave Silver over in Lieston in Suffolk. Have a nice day....
Good morning Jakob. I am a loyal customer of David Silver, they offer excellent service and great for parts that are difficult to find elsewhere. I am using my little cb125s today as the sun is shining and it is a glorious day to be out on a classic machine. Enjoy yours . regards Richard
For the carbonized inlet valve, make sure that no excess oil fumes enter the chamber from the breather. It happens due to blow by when the engine is not run in. I had this problem once with a freshly rebuilt XLR 250 (but with no obvious oil consumption and new valve stem seals) and finally I had to remove the breather tube to oil filter and routed it downwards.
Just made it to part 4 please keep making these videos
My first motorbike was a CB125s, 1974. I'd been into scooters, Lamb's, Li 125, Li 150, 75cc cometa, TV200. Kickshaft sheared and I rebuilt my first Cb125 engine. Many years later, I still have the same bike, I can't let it go. I have rebuilt many of these classic little thumpers, including Sl's and Tl's. So simple and reliable. Love the videos, nostalgia really. Great presentation as anyone can follow the process in detail. Those crosshead screws are a pain, so often rounded, easily done. CG's are a great cheap project, especially with CDI. Just getting another TL fettled. Its not going to be trialed, I'll slip a cb gearbox in. Great stuff Richard.
Thanks for the comment John. You are right about these being great little engines, simple and reliable. Starts second or third kick even if left for a month. Regarding the lambrettas , I really fancy a classic scooter project some time, problem is they are getting expensive,even in basket case condition.
@@richardjweeks In the seventies you couldn't give them away. 30 quid was the most I paid. Loved the little Cometa I had ( very rare along with its sibling the Vega ). In the Honda the fact that the camshaft runs in an aluminium housing without bearings does my head in.
@@MegaWilmington yes, the camshaft/ aluminium head is a problem. I change the oil sub 500 miles to keep the oil as clean as I can.
Dear sir, at the moment i am renovating a 1976 CB125J which is fitted with a 1976 CG125 engine. All the bits have been restored and i am now putting it back together. Wheels are now stainless steel spokes and rims and all the paint and chrome has been done. To many new bits to list. If you are in England and need Honda stuff check out Dave Silver over in Lieston in Suffolk. Have a nice day....
Good morning Jakob. I am a loyal customer of David Silver, they offer excellent service and great for parts that are difficult to find elsewhere. I am using my little cb125s today as the sun is shining and it is a glorious day to be out on a classic machine. Enjoy yours . regards Richard
For the carbonized inlet valve, make sure that no excess oil fumes enter the chamber from the breather. It happens due to blow by when the engine is not run in. I had this problem once with a freshly rebuilt XLR 250 (but with no obvious oil consumption and new valve stem seals) and finally I had to remove the breather tube to oil filter and routed it downwards.
Thank you, something to look into 👍
Richard the valve compressor tool is it the kit 14-30 valve size kit could you confirm or send link as I now need one
www.ebay.co.uk/itm/403944801692?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=1twdejjstau&sssrc=2349624&ssuid=f5HEsbnUR5u&var=&widget_ver=artemis&media=COPY
Also I have a 72 and 73 cb 100 or 125 how would I go about getting a manual for these bikes
Haynes manual on eBay probably best option
Got one if you want, and an original parts manual. Clymer is better than Haynes I think.