The bottom line: We
had to make the green machine better! More fun when cruising the trails, and
better prepared for the racetrack environment; a more rounded package.
For our first
installment of Tecate-4 mods, we wanted to feature some simple mods that were
relatively inexpensive and easy to do at home. Here's what we came up with.
THE MOTOR-HOW 'BOUT
MORE SNAP?
Answer products performed
a big of low cost magic for our Tecate-4. Since the company had great success
with its Roost Boost on new KX250s, it figured that the four-wheeler would fare
equally well. The Roost Boost is an electric device that plugs into your black
box and fools it into zapping the motor with a hotter, longer spark. The spells
instant low-end two mufflers for the machine--one spark-arrested SA-Pro for
trail riding and one Equalizer muffler that isn't spark-arrested for race track
endeavors. To go along with the mufflers, we also drilled five one-inch holes
in the stock airbox and bolted on an '87 KX80 filter. The rich stock jetting
was leaned out a bit. The stock # 30 pilot was swapped for a #28, and the
needle was dropped down one notch Boyesen multi-action dual-stage reeds were
installed in the stock reed cage. We replaced the stock tranny oil with Bel-Ray
80W-gear oil and mixed Bel-ray MCI with premium unleaded gasolines.
GROUND CONTROL
The best way to get
the green machine to handle like a champ is to start with the tires and wheels.
We slapped on a set of ten-inch Hoosier knobbies we happened to have laying
around, and mounted them on CT aluminum wheels. The stock front meats were
retained. One-inch Dura Blue wheel spacers were put on each front hub, and two-inchers
graced the rear. Answer Products also set of its new SR-IV Alumilite bars,
complete with a trick crossbar pad. We opted for these bars because the stock
bars are way too short for whoop-holding leverage, and the Answer bars weigh a
little more than half as much as the stockers.
The stock suspension
was kept intact. After breaking in the shocks, they soften up and work
decently. If Sean Finley could win a National with the stock setup, we could
certainly live with it for a while.! The front shocks were kept at their
softest setting, and the rear shock had the compression set at the number three
setting. And 7mm of preload was taken out of the shock to set it up with about
two inches of sag. In addition to theses handling mods. And suspension setups,
we installed a Funco Bump Steer kit.
EXTRAS
Here's the lowdown on
all the trick little items the make the machine easier and sager to live with
on a day-to-day basis, and also make it legal to compete on in our local racing
organization.
GSM made up a beautiful
set of steel nerf bars, complete with nets. While they were at it, they threw
in one of their too-hip swingarm bumpers and a front bumper. Steve Graydon n of
Graydon Proline fame ran out to the track with a tether (kill) switch, and we
then removed the parking brake (to save two pounds) and installed a Graydon
parking brake removal plate to keep the caliper free from harm. Once again,
because of personal preference, we opted for a twist throttle, and an '87 KX250
twister quickly found a home on the bars. Topping off the package is a set of
Answer Day-Glo green grips, which are safety-wired to the Alumilite bars.
TAKIN' A SPIN
The wider stance of
the Tecate-4 is well mated with its newfound bottom-end and mid-range power
which are the results of the engine mods. All the pieces we installed work
together in harmony; like clockwork.
After the engine mods,
all we could do was rave. The first feature we raved about was Answer's
black-box trickery. Before plugging it in, everyone complained about the green
machine's lack of low end and its slowly building mid-range. The Roost Boost
really improves the upper low end of the powerband and helps the motor build to
a mid-range punch sooner and harder--amazing! The Boyesen reeds helped improved
throttle response in a motor that was already responsive to rider input. The
Answer mufflers provide a weight savings of about five pounds and give a
noticeable, albeit small, power boost. The free-flowing muffler was notoverly
loud, but the spark-arrested model is a bit quieter.
The Chassis
improvements we made did as much for the machine as the engine mods. Most
notable was the machine as the engine mods. Most notable was the extra width we
put on the ground. For the money, the wheel spacers are the best improvements
that could have been made. The extra width stopped the Tecate-4 from
two-wheeling through the corners, and added stability when sliding. The Funco
Bump Steer kit's improvement was less noticeable, but still apparent. After we
acquire more time but still apparent. After we acquire more time on machines,
with and without the Bump Steer kits, we can give a better evaluation of it.
MEATS
The tires. We can't
say enough favorable things about the Hoosier T35 rear knobs when they're in
their prime--California hard-pack! Even though the stock front tires have less
grip than the Hoosiers, our tire setup worked well.
LOW-BUDGET ANSWER
There is no question
about it, we improved the Tecate-4's already solid design by leaps and bounds.
It is now easier to ride, faster (it was the fastest stocker to begin with) and
handles more precisely. All these improvements, and we haven't even opened up
the engine (or our wallets), yet.
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