Note: If you purchase more than 3 items in one order, please email us first for the combined shipping charge, because the system will not able to combine the shipping for your order.

Arrow Shark 2010 Power-Plant
XP254M Billet Version

Arrow Shark Hobby is very proud to introduce a totally new marine engine for 2010 - our billet version of the XP254M. Designed and manufactured exclusively for Arrow Shark Hobby, this 25.4cc power-plant produces just over 6.5hp with a rev range from 3,800 to 19,000+rpm. It delivers a potent performance that matches or exceeds all but the most heavily modified racing engines. Even so, the XP254M remains easy to start and tune, and has a steady idle with smooth, reliable running...More Detail

Stock Number: ASE0001
Stock Status: In Stock
Manufactured By: Arrow Shark
Was: US$685.00
Now: US$525.00



XP254M Billet Version & 2010 Non-Spring II Clutch

Arrow Shark Hobby is very proud to introduce a totally new marine engine for 2010 - our billet version of the XP254M. Designed and manufactured exclusively for Arrow Shark Hobby, this 25.4cc power-plant produces just over 6.5hp with a rev range from 3,800 to 19,000+rpm. It delivers a potent performance that matches or exceeds all but the most heavily modified racing engines. Even so, the XP254M remains easy to start and tune, and has a steady idle with smooth, reliable running...More Detail

Stock Number: ASE0005
Stock Status: In Stock
Manufactured By: Arrow Shark
Was: US$765.00
Now: US$595.00



2010 Non-Spring Clutch System Version II
This is our 2010 version second generation non-spring clutch system which is designed for use with both stock and modified (high rpm) engines.
For improved performance with faster engagement, we have reduced the gap between the clutch shoe and the bell from 1mm to just 0.5mm. As well, a revised design of the clutch shoe center shaft includes dual bearings so that the clutch shoe spins perfectly centered and balanced inside the clutch bell for efficient engagement. This also better enables a stable idle when the clutch is disengaged.....More Detail

Stock Number: ASE0007
Stock Status: In Stock
Manufactured By: Arrow Shark
Was: US$105.00
Now: US$78.00



Stock Number: ASE0002
Stock Status: In Stock
Manufactured By: Arrow Shark
Was: US$188.00
Now: US$145.00



Arrow Shark Onboard E-starter
(Servo Switching Version)
A dream of many gas boat enthusiasts is to be able to start, or to re-start, their engine whilst the boat is on the water. Arrow Shark Hobby's latest product brings that dream to reality with this innovative onboard electric starter. Using a potent electric race motor capable of more than 25,000 rpm, the starter has four heavy-duty metal gears that harness those rpms for increased torque to spin your gas engine. A one-way bearing acts as a clutch so that the starter motor automatically disengages as soon as your gas engine starts. Our onboard starter comes as a complete package with dual CNC mounting plates, the four metal gear cogs, a CNC flywheel holder, the electric motor, mounting screws and an Servo switching assembly that is operated by the third channel of your radio (Servo is pre-installed in the CNC mount along with water-proof switch). A click on the third channel switch of your transmitter will spin the starter motor - just release the third channel when your gas engine starts and the electric motor will stop. The onboard starter fits the bolt pattern of a Zenoah engine, so it can be easily fitted to any engine that accepts a standard Zenoah pull-starter. The additional items you will need to supply are an 11.1volt, 2200-4000mah LiPo battery (plus suitable charger) and grease for the one way bearings.
Please download the E-Starter introduction manual HERE

Stock Number: ASE0003
Stock Status: In Stock
Manufactured By: Arrow Shark
Was: US$88.00
Now: US$68.00



Arrow Shark Non-Spring Version Clutch System
Continuing our program of ongoing product development, Arrow Shark Hobby has totally revised the design of our gas engine clutch. We have replaced the separate clutch shoe and multiple springs of our previous clutch with a one-piece spring-steel clutch shoe for even better reliability. This durable shoe gives a smooth drive-engagement as revs increase and avoids the need to replace separate springs over time. The clutch bell is anodised gold for an attractive appearance and to improve resistance against corrosion. The mounting plate bolts align with the standard pattern of a Zenoah engine for easy fitting (without necessarily using Arrow Shark engine mounts). Also for added convenience, the collet of this new clutch uses two spanners of the same size (16mm) for tightening against the flex shaft. Color available in Red & Silver.

CNC Quick Release Engine Mount

This is the Arrow Shark 2009 new release set of sturdy and reliable quick-release engine mounts. They are specifically designed to accommodate the water-cooled Zenoah G231PUM and G260PUM engines, and are made from lightweight but strong T-6061 machined aluminum. They come with CNC carb insulation block intake venturi,trottle adaptor,and coil mount, The CNC carb insulation block has been rotated to allow an easier and more direct throttle linkage, and also to position the idle setting and the high and low speed needles to where they can be more conveniently adjusted

Stock Number: ASE0004
Stock Status: In Stock
Manufactured By: Arrow Shark
Was: US$105.00
Now: US$78.00



Billet Crankcase & 4 Bearings
Billet Cylinder & Sleeve
High-Performance Crankshaft & Key
Stock Number:XP0001
Stock Number:XP0002
Stock Number:XP0003
Stock Status: In Stock
Stock Status: In Stock
Stock Status: In Stock
Manufactured By: Arrow Shark
Manufactured By: Arrow Shark
Suit: Zenoah, CY Engines
Was: US$138.00
Now: US$105.00
Was: US$188.00
Now: US$165.00
Was: US$53.00
Now: US$40.00
Billet Cooling Header
XP254M Sleeve
Billet Adjustable Coil Plate
Stock Number:XP0004
Stock Number:XP0005
Stock Number:XP0006
Stock Status: In Stock
Stock Status: In Stock
Stock Status: In Stock
Manufactured By: Arrow Shark
Manufactured By: Arrow Shark
Suit: Zenoah CY Engins
Was: US$38.00
Now: US$25.00
Was: US$68.00
Now: US$45.00
Was: US$38.00
Now: US$25.00
Performance Flywheel
Performance Ignition Coil
Billet Button Head & Gasket & Bolts
Stock Number:XP0007
Stock Number:XP0008
Stock Number: XP0009
Stock Status: In Stock
Stock Status: In Stock
Stock Status: In Stock
Suit for Zenoah Engine
Manufactured By: Arrow Shark
Manufactured By: Arrow Shark
Was: US$28.00
Now: US$20.00
Was: US$35.00
Now: US$20.00
Was: US$25.00
Now: US$18.00
Performance Source Coil
Piston & Ring
Heavy Duty Pull Starter
Stock Number:XP0010
Stock Number:XP0011
Stock Number:XP0013
Stock Status: In Stock
Stock Status: In Stock
Stock Status: In Stock
Suit for Zenoah engine
Suit for Zenoah Engine
Manufactured By: Arrow Shark
Was: US$39.00
Now: US$28.00
Was: US$23.00
Now: US$15.00
Was: US$33.00
Now: US$25.00
Short Head Iridium Spark Plug
CNC Rotated Carb Block & Adaptor
CNC Air Intake Venturi
Stock Number:XP0014
Stock Number:XP0017
Stock Number:XP0018
Stock Status: In Stock
Stock Status: In Stock
Stock Status: In Stock
High Performance Spark Plug Suit Zenoah
Suit for Zenoah
Manufactured By: Arrow Shark
Was: US$10.00
Now: US$8.00
Was: US$30.00
Now: US$22.00
Was: US$12.00
Now: US$8.00