What type of oil in a 2002 MZ 125?

Question

I have a 2002 MZ 125 SM. I have no manual. What type of oil should I use? I tried to change the oil and it looked very thin coming out. I switched with new 10W40 and it starts and runs but the clutch will not engage. When I shift into first it just dies and seems like the clutch isn't s functional. It was running perfectly before the oil change.

Answer 1

Did you use a synthetic instead of conventional oil?  Synthetic is too slick for older style clutch plates.

Answer 2

MZ says use:

1.2 L (just a bit over 1 quart)

15w50  

15w40

10w40

   API Grade SG/SH

So 10w40 is  OK

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The Clutch is a mystery

I cant imagine how simply changing the oil would have such an immediate effect.

Make certain clutch is adjust right is about the only suggestion I can offer