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Well, after your very complete reply it would be rude not to respond I am mainly using it for short sharp blasts. 10 mile sprint to and from work and run out to daughters. Must admit the RT with an expansion is looking favourite at the moment. It sounds reliable and easily set upcorrado wrote:Here's one I prepared earlier ...........
Small block kits.
Not sure how many small block kits there are now on the market but here's a few to go at, Gori cast iron 175 & 200, GT186 is also cast iron with reed valve. Alloy kits range from Casa 186, Mugello 186 & 200, MBbgm 195 all normally aspirated then Imola 186, Super Imola 186, RB200, Casa SS200 and Quattrini 210 which are reed valve kits. They're all good kits and probably with the exception of Indian [Ebay] 175 / 186 kits you can't buy a bad kit, only one that doesn't suit your riding style. You're better off posting the type of riding you do, what speeds, how far, and who with before buying a kit. Cast iron isn't generally as forgiving as the Nicasil lined alloy kits [opens another can of worms] but it does tend to warn you of impending doom by way of "nipping up". If a cast iron kit seizes then it's generally a case of a rebore and new [next oversize] piston, a fairly easy fix. When an alloy kit goes bang it generally doesn't seize it tends to burn a hole in the top of the piston and generally wrecks the nicasil lining. This necessitates the barrel being relined and cost of a new piston, which is much more costly. Both cast iron and alloy have their lovers and haters. The more power the kits produce means that more engine internals need replacing to cope with the extra power, mainly crankshaft and clutch. The Casa 186 kit was designed to work fine with standard crankshaft and small carb, it's probably [with the exception of the Gori 175 kit] the lowest powered [out of the box] kit. The alloy reed valve kits tend to be at the opposite end of the spectrum to the Casa 186 kit and can produce much more power [read 3 times the power of an SX200 in standard form] and like to be revved high to get the best from them. Price wise there's only about £200 difference between the Casa186 and the Quattrini 210 but you'll probably need another few hundred quids worth of upgrades to engine components for the "faster" kits. Buyer beware.
Scooter Paul wrote:Here’s a radical option......although the GP/DL engine is a good base for a big bore conversion, nice gearbox ( same as GP200) why not stick with the standard 125 set up, maybe with a mild tune like a Scootopia 22mm carb and a quality clubman exhaust. It’s a sweet running engine that’ll last and last with regular love and attention.
Nudger wrote:Scooter Paul wrote:Here’s a radical option......although the GP/DL engine is a good base for a big bore conversion, nice gearbox ( same as GP200) why not stick with the standard 125 set up, maybe with a mild tune like a Scootopia 22mm carb and a quality clubman exhaust. It’s a sweet running engine that’ll last and last with regular love and attention.
+1
coaster wrote:Nudger wrote:Scooter Paul wrote:Here’s a radical option......although the GP/DL engine is a good base for a big bore conversion, nice gearbox ( same as GP200) why not stick with the standard 125 set up, maybe with a mild tune like a Scootopia 22mm carb and a quality clubman exhaust. It’s a sweet running engine that’ll last and last with regular love and attention.
+1
A 125 will give you a top speed of about 40-45 mph and very underwhelming acceleration, definitely no fun on dual carriageways
My personal choice would be the GT186, I have the larger 240cc version and have ridden across large parts of europe in the company of GT186's I can vouch for the fact that they can easily keep up on dual carriageways at around 60mph and cope with most hills. My GT240 runs a BGM clubman and is just like a powerful Li150 to ride, no powerband, just open the throttle in any gear and it pulls.
too blooming many options, that's the trouble start off thinking of aRaveydavey wrote:Quattrini. Every other option is playing for 2nd
HxPaul wrote:Casa 185 kit.No need to change the crank or electrics or exhaust system.If the scooter uses an sh1/20 now,there is no need to change it,just change the jetting and bolt on the kit and away you go.
Thanks for that, I've narrowed it down to the Quattrini or Rb 20brumtony wrote:Quattrini, been using mine for 2 months and its awesome , drive it lazy low revs hardly ever need to change down just keeps pulling , push it into the power and its like a missile front wheel in air and hang on, driven hard i get 10 miles per litre and it sounds like a 70’s moto Xer with a tsr pipe on . Big smile factor every time i ride it
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