http://img513.imageshack.us/img513/8743/dsc7169uk5.jpg
http://img69.imageshack.us/img69/4696/dsc7170ib5.jpg
http://img513.imageshack.us/img513/3962/dsc7160pz9.jpg

I think some alteration were made in the engine... the respiration of the engine is higher and theres a black tube that is not on the manual parts fot de Serie 2a.

Do you know what differences these changes can cause the engine?

looks like the crankcase breather is piped into the rocker cover and the rocker cover vent raised, maybe done to keep the crankcase vent from making too much mess! as long as the pipe connecting the crankcase to rocker cover isnt blocked it might be ok, or it might have been set up like that because the crankcase vent was blowing heaps of oil out, which wouldnt be good.....
 

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