Aprilia RS50 MY06. I think.

[bigballs5]

I am trying to put a new crank in a Aprilia RS50. I have never worked on one of these before. The bike is on a 56y plate, and it dosent have a AM6 engine. I belive from searching the internet it has a MY06 engine. Am I correct, in this. Also I cannot find any workshop manuals for this bike. Does one exist any where.

I have started pulling the engine apart, but I am stuck as to how to remove the little pin on a shaft next to the crank, behind the clutch.I think its the counter weight. Any advice will be very helpful.

[bigballs5]

Any-one help?

[Avora]

There will be a manual about, but you will need to ask in the appropriate thread. The engine no. is right, they are used in Derbi's also...fairly easy to pull one apart.
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Kawasaki AR125 B8 - Getting ready for a summer time soon!

[bigballs5]

Ok crank fitted eventually.

I have got the engine in the frame, but I cant get it started. I am unsure where the 4 wires from the generator go in to the ignition coil, as these were disconnected when I got the bike. If any one could post a picture it would be very helpful. I am getting a spark, I think its a little weak, but there is a spark. I have tried to do a compression test but I can get my tester in under the frame, so it would mean removing the air box. But saying that I have fitted a new piston and rings and a second-hand barrel, which is in god condition.

Is there a right and wrong way to fit the reed valves?

[SpannerMonkey]

Try simplyreplacing the spark plug :)Always my first port of call for a bike that wont start
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My bike? A YX140 powered one-off Monkey Bike, something a little different!

[bigballs5]