210 malossi bore kit... worth it?

[marky sharky]

hi guys, I recently bought a mint 2010 gilera runner st125 with a st200 engine with 7000 miles on it, verified on mots

has an nice malossi pipe and polini variator with lightish rollers, and seems to be jetted perfect, revs to 8000rpm and stays there till 85mph (gps verified) so was just wondering if the bore kit is worth while in terms of performance/reliability compromise...

I religiously change oil every 800-1000 miles anyway, and would go the whole hog and do the head, gear up kit and re jet,

But will it still be prone to going bang sooner or later?? Thanks
____________________
Nono please I insist, you take the faster bike, I will still have quicker lap times than you,
Oh and have a head start too, I'm a maniac.

[Beehive Bedlam]

I assume you have a full license then?

[marky sharky]

[andyscooter]

No its not

Mallossi are shit

Respected scooter owners won't touch them
____________________
gilera runner vxr200 (chavped)
if its spelt wrong its my fat fingers and daft auto correct on my tablet

[marky sharky]

[mattyfattyboo...]

Nothing to add other than big up the full licence holding scooter rider, from a BV350 rider

[marky sharky]

[wristjob]

the start of your post says its running how you want.
why mess ?
just enjoy having a nippy scoot in town.
if/when it dies ,then look into best options.

[Pjay]

[marky sharky]

[Beehive Bedlam]

[Pjay]

[andyscooter]

[1198]

Fair play to you OP!
As pointed above I'm not sure the minor cc increase would be worth it my view - it'd depend on the cost of it. I put a 150 big bore kit (and other carb and gearing mods) on my Chinese 125, which made a big difference, but the bbk was less that £50....

[Rogerborg]

[stevo as b4]

Another vote for leave it well alone if it's running so well as you say already.

Im amazed if your getting even an indicated 85mph out of a 200cc though? I thought the 300/350cc Vespa's only did around 85 mph genuine?

The other thing is that there doesn't seem to be much if any tuning parts for 200cc four stroke engines in scooters, as they are often bored or stroked 125cc based designs, so have little potential left for increasing capacity or power.

If you wanted to tune a scooter with a big bore kit etc, it might be better to upgrade to a 250cc machine, as they often have more tuning options than 200cc models.

I do get where your coming from with wanting to tune your machine just to see what it could do, especially if budget and daily dependability are not really an issue. I still regret spending over £600 on getting 14mph and 3.8bhp more out of a Peugeot 100cc scooter years ago. Mainly because apart from it being a tad unreliable after, I couldn't get the ideal parts for it, and I was disappointed with it after tuning as the gains didn't justify the expense.

Only tune a bike either for racing, or if your already very happy with the performance as std.

[AshWebster]

why an over 30's male would choose to 'tune' a scooter is beyond me.
____________________
Honda cg125 J reg peice of shit ---> CB650F ---> 2016 CBR600RR
Ford KA ---> 93' MR2 ---> 94'MR2 ---> 98' Subaru WRX STI Ver 3 (track car)

[stevo as b4]

I do get your point, but someone might choose to tune a scooter or small capacity bike for lots of reasons. Two of which could be:

1, They might not be able to afford the parts to tune a GSXR1000?

2, Percentage wise you can sometimes make massive gains with big bore kits and tuning parts, that you'd never be able to do on a GSXR1000 because either it's too expensive, or because there isn't much extra potential and performance left to extract from an almost WSB spec engine. A lowly tuned commuter or all rounder engine might have much more that could be improved or changed to increase performance.

The Yamaha R125 makes around 12.5bhp r/w std for example. A 180cc big bore kit, with cam, ported head, piggyback ECU, exhaust, big bore throttle body etc etc could increase that to say 18-19bhp. You thus might see 40-50% increase in power.

Try getting 40-50% more power out of a GSXR1000 engine, it ain't ever happening with Nasp tuning.

[andyscooter]