To tune or not !!

[soulboy74]

Now I am looking through all the for sale vespa site online !! And I see my most of the guys who have been and tryed to tune there vespa for a few extra mph are now trying to get rid after only a few of there tune up !! Why Go to all that trouble and experience to to sell it on ,!! Big end this and big bore that!! Unless you are a very good and experienced in all things vespa tuning ,!! Ieave well alone seems to be the answer!! Reliable engine is a standard ish one 👍 best foot forward soulboy74 ✊

[adrian]

It all depends on what you want from your scooter, I had a mental 135 motor in a smallframe, that needed rebuild very often, but always put a big grin on my face. Now I have a bgm motor that it tuned to the max 😁. Had standard motors but not as much fun , so tune it then tune it more, blow it up and start again with more tuning 🤪🤪🤪

[ironsloth]

Tuned mine to make it more reliable, at the time I was doing 55+ miles a week, it got some hammer… 😶‍🌫️ Might be a little more devil may care this time round… 😈

[gpowell]

You have to consider what you need and want, that gives you the focus.

Some tuning is benefial when you need a but more.

Standard engines are built on assemblies lines with mass produced parts made and tollerances can be large but they must be able to be churned out.

A great start is with polishing and match surfaces (blueprinting); match carb box to carb bottom, match gaskets so no interference, match barrel ports, enlarge exhaust port.

My vespa is bottom end tuned with the inlet timing increased on crank and inlet, this allows a longer period of fuel inlet. Carb box matched to 26mm SI
The top was a stage 4 Piaggio barrel/piston tuned by RSTuning. It now runs an autisa 200 (im now in 3rd o/s). Crankcase matched to barrel.
It runs a standard 200 GB and cosa clutch.
The expansion pipe has now gone for SIPR3
And standard ignition set at 19 deg, with a late flywheel with starter gear ring removed.
This was all done to make a touring motorway set up for hard rally use, that was still reluable and decent on fuel.
For me it was needed and was perfect.

To some extent.... Always tune to the extent you need

[soulboy74]

Great Answers ! Love all your experience in the way you tune up to your own need's wonderful how vespa let you do your own ting !! Still learning every day about what l will need out of mine ! Mine has only done 2000 miles from new think I might just Pop on the sip 2 next week to see!! How much more fun these vespa can be ! Just can't afford to Blow it up or break down ! Sos for the sore point!! But Hay we live and learn !! Best foot forward soulboy74 ✊🍵 time

[scooterbooter]

Tune it. Otherwise they are lame as a 125. It is a commitment. You should be good with a spanner or willing to learn. But yeah tune.

[scooterbooter]

That's not advice it's just what I think. You have got a good exhaust put that on , you'll love its a great set up with drilled filter. No reason why then over time you can tune up what you got and learn a bit if you want, it's quite interesting. But you do what you want. Seriously get the sip r2 on then a non limited cdi set up. Super. You're mucking about.You'll never get this time back, oh my.

[adrian]

Also , it's a 2 stroke and they are ment to blow up 🤪🤪🤪🤪

[soulboy74]

Nice one 👍 and if I was 30 years younger it would be a walk in the park going for it after my road trip ! Just waiting for some good weather so I can get it outside and up on bricks so I can get under it as is l don't have the room to work properly!! Just got my first torque wrench today and been busy learning every thing NM wow wot a good bit of kit doing the bolts up to the right strength! Just don't want any thing falling off LOL crazy days best foot forward soulboy74 🏴󠁧󠁢󠁥󠁮󠁧󠁿

[alan34]

Hello there here's a tip. every so often go round engine and check for tightness as two stroke vibrate badly and can work loose I put a touch of locktight on thread on on some nuts just to make sure. the last one I did was the bolt that holds the cylinder cover onto the cylinder head on the top.cheers alan.

[soulboy74]

Nice one yes that's how I work with medium thread lock and arm strength just a bit up snug but Hay it's looking like l have over done it a bit on some of my do ups !! Never went full on Arnold !! LOL best regards soulboy74 🏴󠁧󠁢󠁥󠁮󠁧󠁿☮️ peace ✌️