Cambelt change on a Morini 350 

Flywheel/rotor thread is right hand - M27x1.25mm . Feked do one.

I've done dozens over the years. Never had one come loose, or be very difficult to remove.

Make sure that neither piston is at TDC, then first align the cam pulley timing marks, followed by the crank.

I've had one rotor defeat me. It had the cleanest tapers I think I've seen on a Morini and had been fitted way to tight. I ground off the rivet heads and removed the magnet housing and then ground the hub off the crank. Grind over the keyway to avoid any damage to the crank. Rotors are fairly easy to find, stators more difficult and/or expensive.

@@EVguru Aye Paul, thank you for taking the time to reply to my query. Further developments today, before receiving your reply. After heating the area around the rivets, evenly, with a gas torch (MAPP torch) until the metal was a dark red/black, I tried the extractor, with the air gun and had no success. So, after reheating again applied the bar and sheared the 12mm 8.8 HT set screw!!!**********!!!! Now to extract the extractor from the rotor centre! I have left hand drills to remove the broken set screw and will likely give the grinding technique a try. As an aside; the extractor appears to be 30mm across the flats, but when measured exceed this by 0.4mm! So, a little patience and removal of metal should enable the use of a good ring spanner rather than the worn socket or 18" adjustable spanner that I possess. The socket due to a lack of depth, only grips half the face of the extractor body flats and this too could be rounded off unless I am carefull. I note from the MRC forum "RE: Stubborn flywheel removal", 16, July 2017, that plumbers freeze spray worked, so will give that a try before applying the grinding wheel! My regards, BillR

No, never had one come loose.

I've not worked on the off-road bikes, but I seem to recall they have a chain tensioner. The Morini Rider's Club forum would be a good place to ask, or the email list on the Micapeak server.

OK, thanks for the reply.

Brake cleaner in a closed container.

+trampsdog OEM Radelli rims would have been marked. Sizes are WM1 - 1.85"x18" front and WM2 - 2.15"x18" rear. Don't use stainless steel spokes if it's a disc braked version, they tend to foul the callipers. They're too thick and can't be bent tight enough. For tyres, I'd recommend Avon Roadriders, 90/90 front and 100/90 rear.

there's nothing marked, my other strada has 'sanremo trial' rims wm2 185x18 and wm3 215x18 are these the right sizes anyone ?

+trampsdog Sorry, yes. WM2 and WM3 ; 1.85" & 2.15"

thanks , your videos are a great help by the way