Modern Vespa

Hey All

I am installing a pinasco 215 kit in my Rally 200 and it came without instructions or guides of any kind. I previously installed a malossi 210 on a p200 and was wondering if the process was similar? This Kit only came with the base gasket. The malossi kit had many more pieces to it and a booklet.

Does anyone know of any good videos or maybe a pdf instructions? I downloaded pinascos instructions from Vespa Labs, but they are pretty bad.
http://vespalabs.internetscooter.com/wiki/vespa-tuning/cylinder-kits/px200-p200-200cc-engines/pinasco-215/pinasco-215-installation

It's been a while so I'm not sure on the included parts (ie head gasket or O-ring). Is the bottom of the head just flush?

The physical labor part is identitical. Before you send things home, do yourself a favor and measure the squish gap between the piston and the head. I can't remember if Pinasco corrected that. The real old 215 kits had huge squish gaps that needed work.

After that, upjet and change your timing.

I seem to remember that older ones were built for the 60mm crank so they always ran like shit when just bolted on. I *believe* that they corrected the manufacturing so now it's more of a bolt on endeavor.

but all the same stuff applies of checking the port timings, checking the deck and the squish, optimizing the head, all that jazz. so, you're looking at spacers and gaskets and such.

Yup. the old 215 kit is actually a 225, when matched with 60m crank

But just to keep things interesting the head volume was ok with a 3mm "squish", but way too low if you closed that up. I guess they figured anyone building a "competition engine" would be sophisticated enough to calculate and correct as needed. Malossi just left the head up to you. I've found the 11:1 CR typical of "competition kits" is to high for pump gas. 9.5:1 seems to work better.

Thanks for the info guys. Yea just the metal gasket everything else seems fairly straight forward. The 215 was optimized to work with a 57 mm crank. I will keep you all posted! The squish will be the next challenge…

So I feel I am making good progress so far. But is there no head gasket on this? One did not come in the kit? Do I need to calculate the squish? Or just put it on?

Use solder and squish it between piston top and head with bolts holding head on.

Ok but what will that measurement translate to if there is no gasket? What do I do after I measure the thickness of the solder? Is that not to determine the thickness of the gasket to choose? I may be totally misunderstanding this.....

That will give you your current squish, then you can decide what to do from there.

Ok thx

RB tells you how to measure squish on his website.... https://www.rb-designs.com/rb_designs_llc_017.htm