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So here it is basically everything I need to rebuild my supers engine. I got the:

1. Pinasco 177cc 2 transfer port cylinder kit
2. Mazzuchelli by Worb 5 racing crank
3. Dell'Orto SI 24 carb

Around Christmas time I still have to put an order in for the SIP road 2.0 sport exhaust and I'll also be converting it to electronic ignition (12v)

I spent a nice amount in just these parts alone :/ I just have a few questions based on my setup I just listed

1. What would you advise my carb setup be? (Main jet size)
2. The ignition timing (once I get the ignition kit installed)
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Also for those of you that ordered the pinasco kit before, how did you get the rings to fit without scraping up against the barrel walls. Or is this normal for the new kit? I just find there to be a lot of pressure the rings are putting
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the rings go on the piston 1st then the whole thang is installed on the crank
then kit is slid down over piston while compressing the rings with your hand

oil

do check ring end gap is to spec and file if needed before you put it all together

and all the other little checks too
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I'm not %100 sure about the rings on that kit, but check the piston rings when you instal them in the channels of the piston to make sure they are in the correct way.. some piston rings are meant to fit one way only.. just something to be aware of..
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Vader19 wrote:
I'm not %100 sure about the rings on that kit, but check the piston rings when you instal them in the channels of the piston to make sure they are in the correct way.. some piston rings are meant to fit one way only.. just something to be aware of..
+1
you can see this ring end lip in the above picture Vader

I don't think that the rings would fit at all if they were "flipped" due to the peg that locates them correctly
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couldn't see on phone.. so Super15 your rings will go on only one direction.. it's possible to force them on the wrong way, so don't.. they should be able to move and not feel jammed in the channels.
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Is that a small or large taper crank? And do you have the needle-type or ball bearing race in the flyside case? If you don't know then there might some disappointment...

Idle 160/55, 160 A/C, BE3 and a main in the mid-to-low 120's would be my starting point.

The kit should come with ignition timing figures which will probably be in the 18-19 range.
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I believe it is the larger taper crank. For the bearing I don't remember I disassembled the engine almost a month ago the parts are in the shed. All the parts I got were specifically for the early super. No special modifications were specified on the descriptions so all should fit well. The crank I actually wanted was the serie pro but it went out of production for the early supers so I went with mazzuchelli they substituted it. Exact same crank though. The dimensions were the same as my stock just with modified intake for performance purposes
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very cool..
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@ Vader - I know they go in a certain way the pic was just to show how much of a gap the ring had without any pressure.

Ginch - I just did a comparison between the stock Piaggio crank I had to the new one I got. All dimensions are the exact as the stock including the taper. Both identical except the cut on the mazz. Crank for intake (of course). And my case uses the ball bearing flywheel side not needle.
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Super15066 wrote:
I know they go in a certain way the pic was just to show how much of a gap the ring had without any pressure.
http://www.scooterhelp.com/tips/engine/piston.install.lf.vespa.html

I would have the kit checked out anyway for piston to bore clearance
5 mins is worth it @ a machine shop to rule out any tolerance issues at a later date

if they need to fix a tight bore then do the ring end gap afterwards

I do this every time these days
unless the kit is a nik lined barrel where you can't have it adjusted without dong the lining over again.
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chamfer the ports.
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leave the poor boy alone



there just bloody lawnmowers Razz emoticon
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trojan - i was thinking the same thing just to be safe so the rings dont latch on and screw the barrel up.
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joshzingzing wrote:
they're just bloody lawnmowers Razz emoticon
How true. But nowhere in the history of mankind has something so simple been doted on by so many, for so long. at so much expense, for such little gain.
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Super15066 wrote:
I believe it is the larger taper crank. For the bearing I don't remember I disassembled the engine almost a month ago the parts are in the shed. All the parts I got were specifically for the early super. No special modifications were specified on the descriptions so all should fit well. The crank I actually wanted was the serie pro but it went out of production for the early supers so I went with mazzuchelli they substituted it. Exact same crank though. The dimensions were the same as my stock just with modified intake for performance purposes
Ok that worked out well then... the one you got was the narrower taper for the early cases.
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Thank you for the carb suggestions btw, you guys are a great help
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