Long Term Dirt Bike KTM 450 EXC
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I’d had a hard time on my previous bike, a Suzuki DR-Z 400 and while the DRZ is good for what it is, I was able to pinpoint a few things about that bike that I knew I didn’t want on my new bike. The first was weight. The DRZ is a heavy bike and it also carries its weight very high. This equates to a tough time when things go pear shaped and you’re trying to stop the thing from falling over or worse still, as happens all to often to me, you find yourself picking the thing up off the ground after you’ve experienced some un-powered flight.
Which leads to the second “don’t want on my next bike”, a high seat. Have you ever found yourself in that situation where you’re attacking some huge rocky hill that was designed by Satan himself purely to physically injure dirt bike riders and with 2 meters to go you just need to dab your boot down to steady yourself? But instead you reach your boot down towards that rock and that bastard Satan moves the rock and your boot finds only air? Now I can tell you, bike lovers, that air doesn’t have much grip for a size 9 Sidi and this situation lead to my demise on more than one occasion. So a lower seat height was a must have. The 3rd thing was that I wanted was a bike that would last me 3-5 years before I felt the need to upgrade. The KTM has a proven reliable donk and other components provided you do the right thing and maintain them properly. They are just some of the reasons why an orange bike landed in my garage.
There aren’t many dirt bikes you can roll straight out from the dealer and hit the bush with, and the KTM is no exception there. Hand guards are a must for thrashing through the scrub so we fitted a pair of wrap around Bark Busters
. In my short time back on dirt bikes, I’ve already seen a few
radiators cop some pretty severe damage from simple falls, so we chose
to fit some Force
radiator guards. The Force guards offer good side impact protection for
when you throw it away into a rut and also good front on protection
from rocks being chucked up by your mates bike. The only other thing
required is a small exhaust guard from B & B Offroad to stop the
thing from melting nylons and boots. KTM is on to an absolute winner
with the spares kit supplied with this bike. Spare radiator shrouds,
stickers, air filter, hand grips, a neat little rear mud guard extender
to replace the ugly ADR unit, a tough plastic bash plate, an MX style
front plate and a great tool kit for your bum bag with everything you
need to do simple maintenance on the bike. The dealer had already
removed most of the ADR gear for me and also, at my request, changed
the road legal Pirelli Scorpions for a pair of heavy-duty tubes wrapped
in Dunlop 952s.
So what’s it like to ride? The
first ride on the bike was a simple stroll around the bush to get a
feel for the bike and make sure everything was OK. Nothing too
challenging or hard for either me or the bike was the order of the day.
First impressions were good, but not great. I say that because the
jetting as supplied from the factory is ordinary at best. I guess this
is to make the bike comply with ADR regulations as it felt really lean
off the bottom (confirmed by popping from the muffler on roll off),
fluffy in the mid-range, but had plenty at wide open throttle. It also
had the dreaded off idle bog that plagues four stroke owners the world
over. If you can’t crack the throttle open from idle and get clean
crisp response, then you too are suffering the from the dreaded bog.
Luckily, it can be fixed relatively easy and we’ll go into that a bit
later. The whole bike felt tight, which is to be expected as it had
covered zero kilometres before this first outing. Still, with all the
tightness of suspension and engine, and fluffy jetting, it was a joy to
ride compared to my previous bike. The bike hit reserve on the small
8lt fuel tank at 65kms of easy riding.......
We bought the bike back into the Motoaus.com garage for it’s first service
and also to iron out those jetting issues. First up we dumped the oil.
If you are ever in doubt that you should change the oil after the first
ride on a four stroke dirt bike (or any new bike for that matter), you need to think again. After only
70kms of riding, although the oil was relatively clean, there was a
significant amount of crap on the magnetic sump plug and on both oil
screens. Considering what we saw, we also decided on a filter change. At
$16 for both filters we can’t see the point in risking your $13,000
pride and joy. As you should do after every ride, the air filter was
changed with the spare Twin Air filter and oiled up with Bel-Ray filter
oil.
Next up was the jetting. After a bit of research on the ‘net we opted for a JD Jetting Kit and adjustable fuel screw which we ordered through Offroad Enhancements. Working on the carb on the Kato is piss easy. Just remove the seat and tank and it’s open access. First up we tried the recommended settings of a 170 main jet, the blue needle with the clip 3nd from the top and JDs new mod which is an o-ring on the accelerator pump to crisp up the bottom end. {josquote}This saw blue flames shooting out the back of the bike{/josquote} that nearly took the paint of the Motoaus.com garage door! Some deal of tinkering later and we had a good setting. I’d tell you what it is, but I’d have to kill you (just kidding, we’ll have all the mods listed after this article). The result was quite amazing. The bike has an amazing amount of power off the bottom and through the mid range compared to the stock setup. And there is no bog off idle at all. You can simply crack the throttle wide open and the engine spins up rapidly. That’s what we want!
Ride impression number 2: Incredible. So much power, way more than we could ever use. But what about
that woeful fuel economy? It did improve somewhat, but we still need to carry
a bit to get through a 90km ride without fear of running dry. The bike
has now done over 800kms and it’s getting better with every ride in all
aspects. We’ll keep you updated with future mods and improvements as we
do them.
Summing up, we have to say that the Kato is very easy to ride, has beautiful plush suspension that hasn't bottomed out on us yet, has a great engine once it's jetted well and combined with KTMs RFS proven reliability record is sure to be a winner. On the downside, it has poor fuel economy and the side stand was designed by an idiot. We'll be adding some more functional parts to the orange beast in coming issues including a larger tank and a steering damper, so we'll keep you updated on our progress. So far, we love it.
Comments
thanks