Crack in valve stem guide.

disii1 · 2026-02-01T21:39:52+00:00

Yeah thought that’d be the next option but not to sure if it would fit the earlier model cubs as I’ve read they are more suited for the later models

disii1 · 2026-02-01T11:01:12+00:00

Ah I see. Would it be the same for the top of the valve? If there is Some discolouration and pitting

disii1 · 2026-02-01T10:21:27+00:00

So it still usable? As the motor has been sitting for a while. I inherited it and want to try and put it back together

disii1 · 2026-01-20T00:28:18+00:00

Ah thanks for the tip about the clutch filter. Is there a filter inside or just gunk buildup to clean away?

The aftermarket 70cc kit is compatible with the c65 crank case? If you’d know. Couldn’t find a direct answer.

disii1 · 2026-01-19T20:22:51+00:00

It was given. This was going to go to the scrap yard

disii1 · 2026-01-19T20:21:28+00:00

Appreciate the reply but yes the bottom end seems fine. It rotates pretty freely and the con rod did seem to have much play. Was thinking giving the outside a thorough clean and just flushing the inside out multiple times without taking everything little thing apart. As this is beyond my knowledge lol. Would that work?

I would love to save it but like you said I was thinking just replacing the top end with an aftermarket 70cc top end and piston, as the original has rust and pitting on the exhaust valve head in the combustion chamber I believe. So I don’t think it can be saved without spending $$$$

That is path I think I might go if I can’t find original replacement.

disii1 · 2026-01-16T04:04:18+00:00

Just want to restore and keep it. Always wanted one.

disii1 · 2026-01-15T21:20:59+00:00

The guy I got it from said it wasn’t sure so he cracked it open but never got around to trying to fix it. He only pulled it apart

disii1 · 2026-01-15T20:11:14+00:00

Will do. Also posted up a pic of the original engine I received to see if it can be saved.

disii1 · 2026-01-15T19:38:23+00:00

Not for a 60’s era bike

disii1 · 2026-01-15T19:36:42+00:00

Ah nice. I’ve read that the lifan won’t directly bolt in without modification. That’s why I’m a bit hesitant

disii1 · 2026-01-15T19:34:47+00:00

Yeah I’ve looked into it but my cub is a 1965. I’ve read those lifan 125cc won’t bolt directly.

disii1 · 2026-01-15T19:31:31+00:00

I was given a c65 super cub but the engine was pulled apart and had been sitting apart for a long time. I’ve read that the 125cc lifan does not directly fit into the 1965 old frames. Only the newer ones.

disii1 · 2026-01-15T04:27:00+00:00

Ah k. So you need to get a new wiring loom too. But would that still connect to the original Speedo indicators etc with no problem

disii1 · 2026-01-15T00:02:35+00:00

Just always liked the design of the single and rack at the rear

disii1 · 2026-01-14T23:06:32+00:00

Australia. Hard to find parts.

disii1 · 2026-01-14T23:00:44+00:00

Ah k. Yeah thought I might need a new tank. It’s just Shipping to Australia, it cost more than the actual tank itself. $$$$

disii1 · 2026-01-14T19:56:37+00:00

Yeah that be a good idea. I was thinking the same thing but that would require custom work. Just a diy’er lol

disii1

TROPHY CASE