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O.S. - OSMG2082 OSM12241 12241 531028018303 4531028018303
Manufacturer Stock#
12241
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O.S. 21TM ABC w/Revo Manifold
 
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O.S. 21TM ABC w/Revo Manifold
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On-line Videos: Video 1 (18.4 MB) Video 2 (YOUTUBE)
Instruction Manuals: Manual 1 (1.1 MB)
Tower Catalog Page: 202

Stock Number
LXRTM2
Retail Price
499.99
Tower's Low Price
$269.97
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Stock Status
In Stock
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515.64  Buy Now 24.30  

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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
This is the O.S. Max 21TM Engine with the Revo Manifold.
Direct fit for the 2.5 and 3.3 Traxxas Revo.

*** Two year limited warranty ***

FEATURES

Adapts perfectly to the Traxxas E-Z Start or pull-start systems with
no modifications
Included manifold is specially designed to fit directly onto the
Revo
Traxxas' clutch assembly bolts right to the crankshaft with no
modifications
Oversized cooling fins on crankcase helps to keep engine cooler
Three needle slide valve carburetor with fins to help cool the fuel
as it enters the engine
High-performance long reach O.S. LC3 glow plug suitable for off-road
applications that require constantly varying speed

INCLUDES

One O.S. Max 21TM Engine with Revo Manifold, LC3 glow plug, 11K
slide valve carburetor, manifold spring, rubber exhaust gasket,
sticker sheet and instruction manual

REQUIREMENTS

Installing in vehicle
Air filter

SPECIFICATIONS

Displacement: 0.21 cu in (3.4cc)
Bore: 0.669" (17mm)
Stroke: 0.590" (15mm)
Practical RPM: 3,000 - 35,000 RPM
Output: 1.8 PS, 1.77 HP/29,000 RPM
Weight: 8.57oz (243g)

Distance between mounting hole centers same side: 0.43" (11mm)
Distance between mounting hole centers opposite side: 1.2" (31.4mm)
Distance from end of crankshaft to drive washer: 1.03" (26.3mm)
Distance from center of engine to front bearing: 1.4" (34.8mm)
Distance/bottom of mounting flanges/top of cylinder head:3.2"(81.2mm)
Width of mounting flanges: 1.5" (39mm)
Length of exhaust flange: 0.24" (6mm)
Height/backplate mount to top of cylinder head: 3.3" (85.3mm)

COMMENTS

Needle Settings:
- High Speed Needle (Needle Valve) 2-1/2 turns out from close.
To break-in close approximately 30 after running one tank
of fuel through vehicle, repeat five times
- Mid Range Needle (Mixture Control Valve) Screw head is exactly
1/2 turn in from flush with the carb body
- Low Speed Needle (Metering Needle) Turn 30 clockwise to lean
mixture or counter-clockwise to richen mixture

jxs 8/31/07
ir/jxs

– If you need more information, use these O.S. resources –
Click Here: Manufacturer's Product Web Page
Email: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970
  Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822

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Parts Compatibility
 
Parts Compatibility for O.S. 21TM ABC w/Revo Manifold
 
This item is an optional part for the following:
 LXACGB** Traxxas Slayer Pro 4X4 Nitro TQi 2.4GHz RTR  (Parts List)
 LXDCKC** Traxxas 1/10 Nitro Slayer Pro 4X4 2.4GHz RTR  (Parts List)

Accessories Needed
 
COMPLETION NOTES FROM THE TECH DEPARTMENT
THIS IS THE O.S. MAX 21TM ENGINE WITH MANIFOLD FOR TRAXXAS REVO. FEATURES: DROP-IN FIT FOR REVO STARTER & CLUTCH SYSTEMS, 11K SLIDE VALVE CARB W/COOLING FINS, LC3 GLOW PLUG FOR OFF-ROAD APPLICATIONS, REVO STYLE MANIFOLD, ANODIZED BLUE CYLINDER HEAD REQUIRES: NITRO CAR FUEL W/10-30% NITRO CONTENT, GLOW WRENCH, TRACK EQUIPMENT

Accessories for the O.S. 21TM ABC w/Revo Manifold

Primary Accessories     Optional Accessories
 
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
Status
 LXL387 Hobbico 4-Way Wrench w/Plug Storage
Qty Discount Available
4.99   In Stock
 LXFU76 Sullivan CT-1 Screen Fuel Filter
Qty Discount Available
4.29   In Stock
 LXRXC9 Tower Hobbies TOWER Power 20% Car Fuel Quart
Qty Discount Available
10.69   In Stock
Subtotal for this Group of Accessories: 19.97  
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Primary Accessories     Optional Accessories

 
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