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TL125S
Johnny4428:
Makes me sweat the thought of all that things to sort Dave. Says a lot about previous owner/s that clutch bolts!😳
Bryanj:
I think i have a spare cb550 liner knocking about if you think it may fit mate
taysidedragon:
Some of these old engines have really been abused by incompetent idiots. It's amazing that they keep running at all.
Laverda Dave:
Some more progress to report over the past few days.
Thanks to Bryan, Rozabikes Tim and Ash for all the very helpful advice over the past few weeks with leads etc.
I have located a s/h barrel on the still standard but rusty bore to replace the existing barrel that had been taken out to 150cc and that I found was marked and scored (photos). I don’t know if the engine had suffered a partial seizure at some point but there was only ½ litre of very thick grey oil in the sump. There are certainly some strange marks on the liner and vertical scoring. On Tim’s advice I’m going to take the bore out to 138cc using a CB550+1mm oversize piston as 150cc will leave very little liner left. I will locate a 550 genuine Honda piston and rings if I can before sending to Bryan.
Next up was removing the cam chain sprocket on the crankshaft that was so badly worn I am surprised the chain didn’t jump off :o. I had to modify my 100mm three legged puller with a big file to fit behind the sprocket and applied heat, nothing, it wouldn’t move. I didn’t want to apply too much heat as I was concerned about potentially damaging any heat treatment applied to the crank at manufacture. I then tried a split bearing puller without any success and the lip was too thick to go under the sprocket. The dremmel then made an appearance and I very, very carefully cut a slot in the sprocket and after a while I heard a pleasing snap when the sprocket let go and I was able to pull it off with the three legged puller. No damage at all was done to the crankshaft, not a mark on it :)
Now, I assume I am going to need to put the crank in the freezer and the new sprocket in the over at 200c when it comes to fitting the new one and tap it home with a suitable drift. Has anyone done this before?
Off to Kempton Park tomorrow for a rummage.
Laverda Dave:
I forgot to add the photos of the old 150cc barrel!
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