White Bros ATC 200x Dirt Wheels May 1985

"
-,, .,'"
"
'.'
; -,
.' -
It's a missile that handles!
By the Staff of DIRT WHEELS
D We just had to build a no-holds-barred killer
The Honda ATC200X was our candidate; it
oozes with potential It has mushman suspension but a pleasant motor and is a gas to ride.
Just imagine gobs more power, a stretched-out
chassis, and suspension that would suc k up a
Grand Canyon hill Our minds reeled . .. .
A call was placed to the White Bros. Yes,
they'd be happy to go mongo nuts on our
200X. We envisioned a kind of Baja Cross machine. More motor was critical Just as important was the rear suspension: It must be able to
track and absorb hits at speed. In stock trim the
200X fails miserably here. Yes, it's cushy, but
that's the limit. The brothers White said to leave
it to them. We did.
PULLING OUT THE STOPS
They took out the engine and did a major on
it. First, a 12-to-l Wiseco piston kit was installed.
The 66mm piston brought the bore up to
198cc. A White Bros. titanium valve spring kit
was fitted along with a WB racing cam. The
"'"
' }-:
Our White Bros. 200X received a complete
transfusion. The engine went on a fUll-tilt
Nautilus program; a new shock, wider axle,
low-profile rubber, and sano WB swingarm
provided the final touches.
Our 200 throbs with a potent and usable
powerband. It snaps off the bottom with a
vengeance and cranks into atmospheric
upper revs like a demon. ~
,
'"
if'>' "_.i
;; ....
MAY 19851 DIRT WHEELS
81
HONDA200X
head was ported and flowed, and the valve seat
and springs were ground and packed.
A 28mm flat-slide carb kit was installed, and
a WE twist throttle setup replaced the standard
thumb model. Two filters were mounted, one
for the oil blow-off line and a large K&N c1ampon air filter. White Bros. slipped on a Megalloy
racing exhaust system to cap off the big engine
mods.
A sana Derale oil cooler was popped on,
and the front fender was slotted for increased
airflow to the cooler. A trick oil· temperature
gauge screwed into the oil filler cap, and a folding shifter and case saver were installed.
STORMIN' THE CHASSIS
A beautiful White Bros. two-inches-longerthan-stock aluminum swingarm was snugged
into place. The stock shock was tossed in favor
of a White Power Super Adjuster shock. The
final ingredient for stability was the Dura Blue
axle. A four-inch-wider-than-stock unit was
chosen along with Mitchell 3 X 5 offset wheels
and Armstrong Multi Trac tires.
For reliability a Tsubaki chain replaced the
stockitem. Trick fork guards were mounted up
front along with a Terry fork kit. Lastly, a reservoir guard was bolted onto the front brake.
ENOUGH, HOW'S IT WORK?
You can feel the added compression when
the kickstarter is stabbed. Our 200 fired up on
the second prod and belched out a healthy
White B;os. mounted a White Power Super
Adjuster shock which proved to be a major
force in taming evil landscape. A K&N
filter, WB throttle kit and front br(jke reservoir guard cap off the package. The fork
guards and front numberplate are practical
as well as aesthetically pleasing. It oozes
raw energy. ~
·Though the engine appears timid on the
outside, a caged dragon lurks within.
White Bros. implanted a racing cam, trick
valves and springs, a high-compression
piston and a 28mm Mikuni on the 200. Up
front, a Dera/e oil cooler keeps the temperature down, and a thermometer is screwed
into the oil filler cap so you can keep an
eye on the heat. Check out the drilled
front fender-trick.
82
DIRT WHEELS / MA Y 1985
----- •. _-
•
•
eafltper
\
29mm Mikuni Square Slide and Manifold
ATC 200X PRO-Series Exhaust System
, "
-
Bri1itJed'
Brake Line Klt
We tortured our 200X with relentless air
shots. The added power during liftoff combined with a leaner, race-bred chassis
made it perfect for aerial attacks. In the air
it's as light and nimble as a glider.
roar from the Megalloy racing megaphone.
We let it warm up, then aimed it at the track.
Two sensations electrified us immediately: The
stock electric motor feel was replaced by serious thrust, and the machine felt wide and low
The first sweeper was attacked crazily. We
slammed down the throttle and dangled off the
side of the 200X. The rear danced sideways,
and we held a perfect slide around the entire
turn. The engine felt menacing; it was nudged
into a higher gear The Honda bolted skyward
as healthy chunks of real estate blew off the
'
rear tires.
Looming ahead was the King Kong jump.
Normally; your throttle hand keeps the speed
FOX Twfn<lIcker Sho)(
HI-performance Engine parts
Pop Yoshimura is probably
the world 'S most famous
4-stroke motorcycle tuner. His
skills and teChnical knowledge, together with those of
hiS employees, have made
Yoshimura the most successful
non·factory team in t he
history of roa d racing. That pro·
ven ability is now available to
the ATV market with the in·
troduction of a new system of
matched hi-performance parts
for Honda ATC 185 / 200X
machines w hiCh are guaranteed to put yOU into the
winner'S Circle!
ATC header system the low·
restriction Silencer offers a rich
mellow sound and a power
advantage that'S just incrediblel
ATC-OOl
ATt·D02
ATC-003
ATC-004
ATC'lOl
ATC·l02
power advantage for ATCs that
Yoshimura has been providing
to the major factory roadrace
teams in Japan for years.
PRO -Se ries EKl'laust .
Mlkunl 28mm SQ f Sllde
Mlkunl ManifolD . .
FOX 2-<:lIcker Shox , .
Aluminum Fork Brace
Fork Air Balance Kit .
ATC·l03 Steering Damper Kit .
ATC- l 04 HO Handlebar Clamps
ATC-10S
ATC-l06
ATC'107
ATC' l OS
ATC·109
ATC·l10
ATC·l11
ATC·l12
ATC'lU
ATC-114
ATC·115
ATC·11 6
ATC'117
. .. $99,50
. 95.00
. _ 24.95
. . _ 395.00
I
65.00
19. 50
99.50
.... 19.50
TwiSt Throttle / Cable , . , .. __ 19.95
Heavy Duty Rear Hub§
__ _ 64,50
Heavy Duty Front Axle
.. 24.95
198cc Big Bore Kit . ,
69.50
20Scc 81g Bore Kit
. , . .. 69.50
12:1 Race Piston Kit , .
65.00
4 " & 6" HO Rear Axle
.
185.00
Race cam w f Sprlngs .
. , .. 65.Go
HD Clutch w / Sprlngs .... , ... 34.50
Sprocket l1T, 12T, 13T . , . .. 9.95
sprocket 36, 38, 40, 42T
19.95
Red " Z" Chain 520)(100 .
45.00
Steel Brake Line Kit .,.,.",. _ 95.00
ORDER TOLL FREEl
(SOO) 634·9166
Yoshimura PROSeries Exhaust
,
•
•
'.~j:th
If you're serious about
extracting horsepower and
reducing weight on your ATC
200X the place to begin
is with Yoshimura's PROSeries Exhaust. A dynotuned pipe painted KAL·
GARO black is matched
to one of our famous lightweight aluminum canister
silencers. It'S the same silencer
system we pioneered in roadracing and is found on our National Championship winning
superbikes. used on a tuned
Each Yoshimura part is designed and manufactured in
Japan to performance and
quality standards found only in
official fa ctory racing parts.
Items like our lightweight
forged Aluminum Fork Brace
Kit, Twist Throttle Assembly
and Alloy Steering Damper Kit
have that "exotiC" factory look
and function . Our High Compression Piston Kits and cam·
shaft Kit w / Sprlngs offer the
same ki nd of reliab le hOrse·
In CA (714) 628-4722
YOSh imura Research and Development of America, 4555 Carter Court,
Chino, CA 91710. Visa and MasterCard
or UPS C.O.D. T-Shirts 59.9S 1+51.50
shipping, CA add tax) in Red or White,
S,M,L,XL
•
,
-
f"lere's a bug's eye view of the Bajacross
tail section. With a wider stance (thanks to
a four-inch-wider Dura Blue axle and offset
Mitchell wheels laced with Armstrong tires
to keep a grip on things), it's all business.
The WB aluminum swingarm is two inches
longer than stock and is a work of art. A
super-strong Tsubaki chain handles the
added boost of the engine. The megaphone is a White Bros. Megalloy racing exhaust that's beautiful to the eye and is
another factor io the added thrust .
33 Page Catalog
•
MA Y 1985 / DIRT WHEELS
83
•
1ii..._ _ _ _ _ _ _ _ _ _ _ _ _ _~~__ ~~_I_
_ ._ -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
••'-- ~
. -
- - -
-
- -
-, -
- - -
- -
-
-
-
........
HONDA200X
THE
down. We hunched down and shot off the top
of the mountain like an Olympic ski jumper.
The landing would tell the story about the suspension mods. As the rear wheels touched
down, the expected crunch of an overstressed
shock never happened. The fourth-gear vault
was soaked up with ease.
• Tires (every type)
• Bills Famous Pipes
• Steel & Aluminum
Wheels
• Axles
• Mud Kits
• Wheel Spacers
• Skid Plates
• Steering Dampners
• Racing Reeds
• Cams
• Clutches
• Chain & Sprockets
BOTTOM-LINE TIME
AND LOTS MORE
* Sales & Service*
We have the Largest Selection of Quality 3 Wheeler Parts & Accessories
in Canada. "IN STOCK NOW"!
MAIL ORDER: • Fast Shipment Anywhere in Canada
• Money Order or C.O .D.
Personal Cheques DELAY your order Three Weeks
"FREE" Price List or send $2 for our Catalogue.
ALL TERRAIN CHARLIE'S
225 Cobequid Rd.,
Lower Sackville,
Nova Scotia
B4C 3J7
1-902 -864- 2832
HOURS:
Mon.-Fri. .
9 am-6:30 pm
Saturday .
.. 9 am-S pm
Sunday
Closed
The White Bros. built a 200X that bubbles
with horsepower and flattens ugly terrain like a
bulldozer. It's a racer all the }Nay, although the
power is ridable and torquey. There is tons of
boost on tap, and once the upper revs are
reached, things really start to happen-fast.
Our 200 has been flogged mercilessly since
the White Bros. kitted it. We haven't touched a
wrench and have had no blown head gaskets
or lunched engines. It's as reliable as a tractor.
We felt that the handling gains were just as
impressive The longer swingarm, White Power
shock, Dura Blue axle and low-profile rubber
let us slide like lunatics and jump with reckless
abandon. If your 200 already has a modified
engine, we suggest you check into the chassis
mods. It's not just a short-course "slider, but a
bump monger too. The bottom line is this: The
White Bros. cover the entire spectrum. They
build an engine that's lightning fast and reliable. Their chassis updates have turned the
stocker from fun to awesome. What more could
you ask for? 0
Side
U.S. PATENTS PENDING
THE FIRST TOTAL SOLUTION
FOR YOUR 3 OR 4 WHEELER
Now you can own a complete drive system for
your A TC, KXT, TRI-Z or QUAD-RACER
that ensures maximum life and dependability.
The awesome reliability of the original, selfcleaning SideWinder Sprockets combined with
the All New Racing Chain is the first total answer.
•
•
•
•
•
TRIPLE CHAIN & SPROCKET LIFE
ELIMINATE CHAIN TOSS PROBLEMS
REDUCE POWER LOSSES
BAJA TESTED & PROVEN
PRICED FROM ONLY $29.95
EQUIP YOUR ATV WITH
THE VL TIMA TE DRIVE SYSTEM
1985 Catalog - $1.00
Order Toll-Free: 1-800-692-2846 (In IL 1-312-543-6696)
84
DIRT WHEELS/MAY 1985
111 Fairbanks. Addison, IL 60101