|
| RD
Carburetor Kits - 34MM Mikunis |
| |
|
These carburators
are all supplied with custom-made cables and jetting specifications
derived from our extensive racing program.
34MM carborators
are suitable only for the extensively modified RD. WIth stock
reed cages, on fully modified engines only, dyno testing has
demonstrated increases in power above 9000 RPM, although full
throttle power below 5000 RPM was substantially reduced. Power
through the range of 6000 to 9000 RPM remained the same. WIth
the above information, and the fact that RD400 pistons tend
to come apart if RPM is sustained at 10,000, we do not recommend
34MM carburators, with the stock reeds, for low maintenance
applications.
WIth the TZ reed
conversion, 34MM carburators are the only way to go. With
conservative throttle application (i.e. - not fully open)
below 5000 RPM, this combination produced excellent low RPM
response with terrific power increases from 6500 RPM up.
Air filters are
supplied with carburators, along with throttle and oil injection
cables.
Please note also
that air filters that fit stock carburators will not fit the
larger, more efficient intake bells of the 34MM carburators.
| Part
# 11351 - Fits RD350A,B '73-'75 |
$299.95
|
| Part
# 11401 - Fits RD400 '76-'78, C,D,E |
$299.95
|
| Part
# 11411 - Fits RD400F '79 F (Daytona) |
$299.95
|
|
| |
| RD
Carburetor Kits - 30MM Mikunis |
| |
|
When these specially
jetted carburators are installed with Spec II chambers, the
combination results in a whopping 26% increase in peak power
over stock.
Install these 30MM
carburators on an already Spec II modified and chamber-equipped
RD engine, and you will note power increases of 12% in the
peak (9000 RPM) and 16% in the midrange (5000-6000 RPM).
Carburator Kits
include :
1. Custom-jetted
carburators, right and left idle screws;
2. Custom manufactured cables;
3. K&N high-volume filters;
4. Complete instructions.
Please specify
whether your engine is stock or modified when ordering. Please
note also that air filters that fit stock carburators will
not fit the larger, more efficient intake bells of the 30MM
carburators.
| Part
# 11350 - Fits RD350 |
$299.95
|
| Part
# 11400 - Fits RD400 '76-'78, C,D,E |
$299.95
|
| Part
# 11410 - Fits RD400F '79 F (Daytona) |
$299.95
|
CARB
ACCESSORIES :
| Part
# 11530 - Replacement Cables |
$49.96
|
| Part
# 11510 - Rubber Manifolds for 34 MM Carbs - TZ or RZ
Reeds |
$39.95
|
| Part
# 11500 - Pair Of Aluminum Reed Spacers (Good With Large
Reeds) |
$34.54
|
| Part
# 35700 - Main & Pilot Jets (Each) |
$2.50
|
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
RD350/400
HIGH-PERFORMANCE CLUTCH
Don't let a slipping
clutch reduce your acceleration and top speed. Install a Spec II
High-Performance Clutch Kit.
| Part
# 33400 - Fits RD400/400F (7-Plate) |
$75.00
|
| Part
# 33400 - RD400/400F Clutch Springs Only (6 Springs) |
$14.93
|
| Part
# 33350 - Fits RD350 (7-Plate) |
$75.00
|
| Part
# 33350 - RD 350 Clutch Springs Only (6 Springs) |
$14.93
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
RD350/400
BRAIDED STAINLESS STEEL BRAKE LINES
Install Spec II's Steel
Braided Brake Lines on your RD350/400 and take full advantage of
the strong brakes on your machine. They also make the machine look
trick.
| Part
# 23100 - 1 line and adaptor-like RD400 front |
$44.96
|
| Part
# 23101 - 1 line for rear brake |
$39.00
|
| Part
# 23200 - 2 lines for front brake |
$88.50
|
| Part
# 23300 - 3 lines for front brake |
$99.75
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
RD350/400
REARSET FOOT CONTROLS
Your RD350/400's ground
clearance will be fully exploited upon installation of Spec II's
rearset foot controls. They pull your feet up and back to eliminate
foot dragging. Feature spherical rod bearings at all pivot points.
| Part
# 350RS - RD250/350 Spec II Rearsets |
$149.97
|
| Part
# 400RS - RD400 C,D,E Spec II Rearsets |
$149.97
|
| Part
# 410RS - RD400 F '79 Spec II Rearsets |
$149.97
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
RD350/400
HIGH-COMPRESSION HEAD MODIFICATION
Your RD350/400 will benefit
from more compression once cylinder head is milled, ridding the
engine of unnecessary squish clearance. Not only will the bottom
end power be improved, but the peak power goes up also. Must send
your cylinder head.
| Part
# 350HM - Medium Compression |
$30.00
|
|
| Part
# 350HH - High Compression |
$70.00
|
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
TDR
FIBER REEDS
Tony Doukas Racing reeds
are simply the best reeds for your RD350/400. For that matter, they
will improve the performance of any reed-equipped two-stroke engine
- and we have the dynamometer curves to prove it.
| Part
# 350RD - Riber Reeds For Standard RD350/400 - 1 Cylinder |
$19.99
|
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
RD400
SILICONE BRONZE SWINGARM BUSHINGS
You're assured precision
fit and elimination of swingarm wobble upon installation of Spec II's
Bronze Swingarm Bushings. Because of silicone bronze, depend on
greater durability, too. Easy to install - perfect fit. Complete
with instructions.
| Part
# 16400 - Fits RD350/400/400F |
$49.68
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
RACING
SWINGARM KITS
Spec II's expertise in
producing horsepower often brings out the weaknesses in a motorcycle's
handling. One of the worst chassis problems that motorcycles have
is weak swingarms. Spec II
has come to the rescue with our F-1 Racing Swingarms. High strength
materials and advanced construction techniques result in an ultra
strong design. Also, internal alunimum chain adjusters offer the
choice of two axle positions : stock and 1.5" longer. Special
design allows the use of wider rims and tires.
| Part
# 40350 - Fits RD350 |
$299.95
|
| Part
# 40400 - Fits RD400 '76-'78 |
$299.95
|
| Part
# 40410 - Fits RD400F '79 |
$299.95
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
MACHINING
& SERVICES
Spec II's forte resides,
among other things, in boosting your RZ350's power through porting.
We offer many stages of porting, and we can also perform various
maintenance tasks to your crankshaft. Cylinder boring is also offered,
as is a Big Bore kit. We can even clean your Power Valve assembly!
(Head milling is covered farther up on this page.)
RD PORTING STAGES - Please
note that porting stages indicate the number of ports worked on
:
| Stage
I Porting. Power increases in the mid- to upper power range. |
$159.94
|
| Stage
II Porting. Adds to power gained in Stage I. Broadens powerband
making the machine easier to ride. |
$249.90
|
| More
power for you addicts out there. |
$324.87
|
| Stage
IV Porting. Primarily designed for racing. Achieves the ultimate
in horsepower output.
|
$399.84
|
CRANK WORK - LABOR :
| Crankshaft
Rebuilding - 2-Stroke Twin |
$99.00
|
| Crankshaft
Rebuilding - 2-Stroke Triple |
$150.00
|
| Crank
Welding - Includes Truing After Welding |
$20.00
|
| Crank
Lightening - RD 400 '76-'78 Hardened Crank |
$168.00
|
| Crank
Lightening - RD350 |
$108.00
|
| Crank
Stuffing Only |
$66.00
|
CYLINDER WORK :
| Part
# 10BRZ : Cylinder Boring, Per Cylinder. (Includes port chamfering.)
Multiply X2 for price of complete top-end. |
$35.00
|
| RD350
Big-Bore - Call or Write for more details. |
CALL
|
| RD400
Big-Bore (Call or write for more details) |
$102.00
|
| Barrel
Surfacing |
$35.00
|
Back
To Top - Expansion Chambers -
Carburators - Clutch Kits
- Braided Stainless Steel Brake Lines - Rearsets
- Head Milling - Fiber Reeds
- Bronze Swingarm Bushings - Racing
Swingarm Kits - Machining & Services
SPEC II'S
RECOMMENDATIONS, RD350-WISE...
| ENGINE
RECOMMENDATION |
|
CHASSIS
RECOMMENDATIONS
|
| |
Stage
I - E.T. 13:20, M.P.H. 98
|
|
|
Expansion Chambers |
|
14-Tooth
Countersprocket
|
|
Air Filters Or K&N Replacement |
|
|
| |
Stage
II - E.T. 12:90. M.P.H. 101
|
|
| Expansion
Chambers |
|
14-Tooth
Countersprocket
|
| Air
Filters |
|
|
| 30MM
Carburators |
|
|
| |
Stage
III - E.T. 12:41, M.P.H. 106
|
|
| Expansion
Chambers |
|
14-Tooth
Countersprocket
|
| Air
Filters |
|
|
| 30MM
Carburators |
|
|
| Mild
Porting |
|
|
| Cut
Heads |
|
|
| |
Stage
IV - E.T. 12:12, M.P.H. 110
|
|
| Expansion
Chambers |
|
14-Tooth
Countersprocket
|
| Milled
Head |
|
|
| 30MM
Carburators |
|
|
| Hot
Porting |
|
|
| Air
Filters |
|
|
| |
Stage
V - E.T. 11:90, M.P.H. 112
|
|
| Expansion
Chambers |
|
14-Tooth
Countersprocket
|
| Air
Filters |
|
|
| 30MM
Carburators |
|
|
| Milled
Head |
|
|
| All-Out
Porting |
|
|
| Lightened
Crankshaft (Including Rebuild) |
|
|
SPEC II'S
RECOMMENDATIONS, RD400-WISE...
| ENGINE
RECOMMENDATION |
|
CHASSIS
RECOMMENDATIONS
|
| |
Stage
I - E.T. 12:80, M.P.H. 102
|
|
|
Expansion Chambers |
|
15-Tooth
Countersprocket
|
|
Air Filters Or K&N Replacement |
|
|
| |
Stage
II - E.T. 12:60. M.P.H. 104
|
|
| Expansion
Chambers |
|
14-Tooth
Countersprocket
|
| Air
Filters |
|
|
| 30MM
Carburators |
|
|
| |
Stage
III - E.T. 11:97, M.P.H. 112
|
|
| Expansion
Chambers |
|
15-Tooth
Countersprocket
|
| Air
Filters |
|
|
| 30MM
Carburators |
|
|
| Mild
Porting |
|
|
| Cut
Heads |
|
|
| |
Stage
IV - E.T. 12:12, M.P.H. 110
|
|
| Expansion
Chambers |
|
15-Tooth
Countersprocket
|
| Milled
Head |
|
|
| 30MM
Carburators |
|
|
| All-Out
Porting |
|
|
| Air
Filters |
|
|
| Lightened
Crankshaft (Including Rebuild) |
|
|
| |
Stage
V - E.T. 11:90, M.P.H. 112
|
|
| Expansion
Chambers |
|
15-Tooth
Countersprocket
|
| Air
Filters |
|
|
| 34MM
Carburators |
|
|
| Milled
Head |
|
|
| All-Out
Porting |
|
|
| Lightened
Crankshaft (Including Rebuild) |
|
|
| TZ750
Reed Valves |
|
|
Back to
top
|
R
D 3 5 0 / 4 0 0