MRC Forum- brought to you by www.morini-riders-club.com Member: g7AW3f

Thanks - thought it had a "proper" oil seal and not just an O ring.

Not going to take the cover off just to fix a little drip, so it will have to keep dripping for now.

Thanks for the sidestand advice, TBH I very rarely use it.

Picking up my glaze busted cylinders this afternoon, and have also got a set of new rings. Blue manual says ring gaps of 0.2mm - 0.3mm wear limit 0.45mm. Is this known to be correct, as I want to start putting it all back together over the weekend, and I know that what you read in the Blue Book is n...

I have not taken a close look yet so might be able to work it out for myself.

The kick start oil seal leaks on mine, so question is can they be replaced without taking the case off ?

Thanks.

All on track now, got the cylinders with a trrusted local engineering shop for the de glazing and a couple of helicoils in the heads.

Rings, valves and gaskets sourced from Mdina after giving them a call.

Reckon I can have it all back together in a couple of weeks.

Was doing a bit more to the Morini this afternoon, I said that the valve seats looked perfect - in the head yes, without doubt, but closer inspection of the Exhaust valves, not so. Both have some very deep pits in them, and they are both cracked, just a small crack from the edge of each valve accros...

Thanks John only reason for asking it that use copper grease for this sort of stuff, thought perhaps the Optimol was better suited or something.

John / Steve. Thanks for all the sage advice. Pistons are marked SCIAM cast into the inside of the skirt, there is also a number 785 cast in. Head stud nuts are a nice running fit on the threads, although one had a nut of the wrong pitch on it and screwed the cylinder stud out when I tried to undo i...

Steve Thanks for the replies - is there any way I know if I have an older type piston? Perhaps mine has the later ones, hence no spring. I have some "3 Bond" which I used on the KH rebuild, which is virtually the same as Yamabond, so I will use that on the gaskets. As you say the gaskets m...

Pulled the 350 apart this afternoon to try and work out why it has such low compression and burns a little oil. It is not the guides or valve seats as there is no real slop in the guides, and the seats look perfect, so no compression leaks there, and no oil going past the guides. I have managed to s...

Makes me wince seeing someone sitting astride a bike with it on the stand (sidestand especially) and seeing them kick up a bike, especially if it is a big person and the bike wont start. I have always taken all my bikes off the stand to kick them up, only exception is sometimes I will leave the cent...

I recently acquired a pair of Lanfranconi silencers sold as being Morini 350 ones. I bought themn form an Autojumble for a very reasonable price and even not 350 ones I think I could easily sell them on again. Anyway, they are stamped: 26 Lafranconi MM 48. Does anyone know if these are the "cor...

Yuasa YT12B-BS CCA = 210A. According to reviews on the Tayna website, people have used them in Triumph Sprint 1050, Thruxton 900, Yam Diversion 600 and Kawa ZX10 all of which I would imagine need more grunt to turn over than the Morini - but happy to stand corrected. The starter is currently off the...

BumbleBee wrote: ↑11 Sep 2025 20:26 How many ohms across the starter relay?

And is the circuit that pulls the relay in, pulling it in 100%?

No more that 0.2 ohms between battery and starter motor - checked with my multimeter

Pulling in 100% ? As far as I can tell, there is a good solid click and as I say aroind 0.2 Ohm

Just a thought re timing marks on the cam pinion and crank pinion. As long as the cam pinion dot aligns with the mark on the crankcase, and the crank keyway aligns with the dot on the case, the position of the marks on the crank pinion dont really matter as long as you can get the belt on and mainta...

Damn it - I have roadriders on the Morini and Kawasaki KH, been using them for years on various bikes.

Guess I will have to look for something different