Suzuki Katana AY50 Race Tuning Guide

One of the earlier race inspired scooters by Suzuki,rollers, since performance exhausts allow the Katana
featuring upside-down Showa forks and Carbon fibreto make more power but at a higher rpm. Going 0.5 -
look dash panels, the Suzuki Katana was an instant1 gram lighter than standard generally does the trick
hit and quickly became popular for tuning, with plentyfor Gianelli race exhausts on the Katana's, but it
of performance race parts from Malossi andvaries between exhausts and tunes, and the Suzuki
numerous other manufacturers.takes 17×12mm rollers.
Early Suzuki Katana's had the Suzuki air cooled engineAfter fitting a race exhaust, the biggest benefit the
in them, whilst later Suzuki Katana's had Suzuki's newScooter Katana will gain is by fitting a performance
liquid cooled engine, and where designated AY50R forbig bore kit, adding a 40% increase in capacity and
the race production version.more than doubling the power. Malossi and Polini
One notable feature of the Suzuki Katana's are theirmake the best big bore kits available for tuning the
very low gearing, which means the engine does moreSuzuki Katana, and will provide the best performance
revolutions per wheel revolution compared to otherand reliability compared to the cheaper big bore kits
scooters, this provides very quick acceleration but aon the market . As you're increasing the capacity
lower top speed, even on tuned engines, most otherwith the big bore kit, a bigger jet is required to be
derestricted scooters can keep up on top speed, butfitted in the carb, usually around 6-8 sizes larger,
will struggle to match a race tuned Suzuki Katana onalthough doing a plug chop after a test ride to check
shear acceleration.the jetting is recommended to check your scooter
Although some people see the Suzuki Katana's lowisn't running lean after it's tuning, otherwise it can be
gearing as a problem, it is also the scooters greatestliable to go bang.
strength, with blisteringly fast acceleration, mostWhen tuning your Suzuki Katana, it is important to
other scooters will struggle to keep up with it in anmake sure you run it on the best quality fully
urban environment, as even when others are tunedsynthetic oil, especially with the Katana's oil pump
and kitted up with performance parts they'll stillsystem, as it can be prone to clogging up the
struggle to match the Suzuki Katana's 0-30 times.exhausts, especially the standard ones. This is one of
When the liquid cooled Suzuki Katana is tuned it isthe reasons why fitting an aftermarket race exhaust
practically untouchable against all the other 50ccto these scooters can provide such a huge
scooters on the market in these times, it'll only loosedifference on older models.
out on longer roads where speeds of 50mph+ canAfter fitting the Gianelli race exhaust and tuned big
be acheived by other LC scooters.bore 70cc Malossi cylinder kit, you'll have a
The Suzuki Katana's are primarily restricted mostly inexceptionally fast accelerating scooter, but without
the exhaust, so in the very early models it requiresan amazing top speed increase compared to other
binning and replacing with a race exhaust, whilst in thescooters, due to the Suzuki Katana's low gearing. You
later versions with a 2 part exhaust, you can grindcan now either keep the fast acceleration, or
out the internal restrictor cone and refit the exhaust,sacrifice a little and fit a gear up kit to your Katana,
although nothing will match the performance that anallowing it to use some of this new found power
aftermarket race exhaust gives for the Suzukiprovided by your Malossi big bore 70cc kit to give
Katana. On the very early models, the CDI is alsoyou a better top end, good for another 10mph in
restricted and requires replacing with an aftermarketmost cases. Although it looses some acceleration by
model, although this isn't a problem on the laterfitting a gear up kit, your scooter will still be faster
scooters.accelerating than a standard untuned Suzuki Katana,
As with my usual reccommendation, Gianelli Exhaustsso don't think a gear up kit will make performance
generally make the best performance exhausts forworse than before.
scooters, and since they're all e-marked, completelyFor even higher increases in power, bigger carbs and
road legal and come with a warrenty when fitted byaftermarket variators are available, but do not make
an authorised mechanic, so are by far the best tuningas bigger differences as the Gianelli race exhausts,
option for road going Suzuki Katana's, and all otherthe Malossi big bore 70cc kits and the gear up kits.
scooters that are being tuned for the road.The variator will provide a substancial benefit if it is
When fitting a Gianelli race exhaust to your Katana,fitted onto a Suzuki Katana that is older and has
it'll require a slightly higher jet (0 to 2 sizes on nondone a lot of millage, as this combined with a new
catalysed Suzuki Katana's, I don't think they madebelt will give a lot smoother acceleration and a slight
any with catalytic converters) and slightly lightertop speed increase.