Dynamite DYN0890 Manual do Proprietário - Página 2
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Idle Stop Adjustment
The last setting to be made is the idle stop screw.
Turning this screw clockwise increases the idle speed;
whereas turning the screw counterclockwise will make
the engine idle at a lower speed. Ideally, the engine
should idle just fast enough to be reliable in acceleration
and transition from idle to full speed. Avoid an idle speed
that is too fast, as it will cause damage to your clutch.
Engine Maintenance
Periodic maintenance must be performed in order
to keep your engine in proper operating condition. After
each day of running, it's critical to use high quality after-
run oil to protect the internals of the engine and protect
them against corrosion. The methanol used in the fuel
attracts moisture that can cause corrosion (particularly in
the ball bearings). We recommend Blue Thunder
Final
™
Run (DYN2255) as it's specifically formulated to protect
your engine between uses. Follow these steps after
running your engine:
1) Empty all fuel from the tank and fuel lines
2) Use Final Run fuel following the instructions on
the container
3) Clean and inspect the engine, air cleaner and
fuel system
Troubleshooting Guide
Problem
Possible Cause/Solution
Engine won't start
• Reset needles to the
factory setting
• Incorrect needle settings
• Out of fuel/old, bad or
improper fuel
• Clogged fuel line
• Bad or improper glow plug
• Glow igniter not charged
• Engine flooded
Engine starts, then dies
• Pressure line blocked or
disconnected
• Bad glow plug
• High-speed needle too lean
• Hole or tear in fuel line
Engine starts and runs
• Bad glow plug, idle speed
for
1
⁄
tank, then quits
set too low
2
• Overheated engine
(too lean)
• Improper needle settings
8002_DYN_mach28_manual.indd 2
Spare Part Listing
Stock #
Description
DYN0900
CYLINDER HEAD SCREW (4): Mach .26/.28
DYN0945
CYLINDER HEAD: MACH.28
DYN0946
HEAD BUTTON: MACH.28
DYN0947
HEAD GASKET .1mm: MACH.28
DYN0948
HEAD GASKET .2mm: MACH.28
DYN0949
PISTON/SLEEVE: MACH.28
DYN0950
WRIST PIN: MACH.28
DYN0907
WRIST PIN CLIPS: MACH.26/.28
DYN0908
CONNECTING ROD: MACH.26/.28
DYN0951
SLIDE VALVE CARB: MACH.28
DYN0910
O-RING SET: MACH.26/.28
DYN0952
CARB RET. POST SET: MACH.28
DYN0912
COLLET: MACH.26/.28
DYN0913
FRONT BEARING: MACH.26/.28
DYN0953
CRANKCASE: MACH.28
DYN0915
REAR BEARING: MACH.26/.28
DYN0954
CRANKSHAFT (w/ PS) SG: MACH .28
DYN0955
CRANKSHAFT (w/o PS) SG: MACH .28
DYN0922
BACKPLATE (w/o PS): MACH.26/.28
DYN0923
THROTTLE BARREL: MACH.26/.28
DYN0956
THROTTLE BARREL BOOT: MACH.28
DYN0925
BALL END: MACH.26/.28
DYN0926
CARB. BALL LINK: MACH.26/.28
DYN0927
LOW-SPEED NEEDLE: MACH .26/.28
DYN0928
IDLE SCREW: MACH.26/.28
DYN0929
HIGH-SPEED NEEDLE: MACH.26/.28
DYN0930
HIGH-SPEED NEEDLE HOLDER: MACH.26/.28
DYN0931
HIGH-SPEED NEEDLE WASHER: MACH.26/.28
DYN0932
FUEL INLET NIPPLE: MACH.26/.28
DYN0957
CARB BODY: MACH.28
DYN0958
THROTTLE SPRING: MACH.28
DYN0934
PS COMPLETE: MACH.26/.28
DYN0935
PS HANDLE & EXT.: MACH.26/.28
DYN0936
PS BACKPLATE: MACH.26/.28
DYN0937
PS SCREW SET: MACH.26/.28
DYN0938
PS RECOIL SPRING: MACH.26/.28
DYN0939
PS ROPE/PULLY: MACH.26/.28
DYN0940
PS FRONT SET: MACH.26/.28
DYN0941
PS ONE-WAY BEARING: MACH.26/.28
DYN0942
PS BACKPLATE: MACH.26/.28
DYN0943
PS SHAFT: MACH.26/.28
Warranty
Mach .28 engines are guaranteed against original
defects in materials and workmanship for a period of 90
days from date of purchase. Mach .28 engines are of
excellent quality and designed to provide many hours of
racing enjoyment. If cared for properly, these engines are
extremely durable. However, normal "common sense"
care must be given to your engine in order to maximize
its performance and service life. The following conditions/
problems cannot be covered under warranty:
• Recoil starter
•Damage due to lack of maintenance
• Rusted bearings
• Crash-related damage (over-revving, runaways,
free-wheeling, etc.)
• Damage due to use of improper fuel or glow plugs
• Damage due to lean runs (seized connecting rods,
pistons, etc.)
• Damage caused by dirt or foreign objects being
ingested into the engine
• Damaged from improper disassembly or reassembly
• Modification of any kind
• Normal engine wear
Should you need to send your engine in for warranty or
non-warranty repairs, please follow these steps:
1) Ship your engine (in its original box) packed inside
a sturdy box, freight prepaid to:
Horizon Service Center
ATTN: Mach .28 Service
4105 Fieldstone Rd.
Champaign, IL 61822
2) Include a note containing a brief summary of
the problems you are experiencing with your
Mach .28 engine. Please tell us:
• Nitro content and brand of fuel used in
the engine
• Type of glow plug used
• Type of air cleaner used
• Approximate running time on the engine
prior to difficulties developing
Date your correspondence and include your return
shipping address, as well as a daytime telephone
number and e-mail address (if applicable).
3) Warranty Repair
If you believe that the problem(s) with your
engine are covered under warranty, you must
include your original dated sales receipt to verify
proof of purchase date. Providing the conditions
of warranty have been met, your engine will be
repaired without charge.
4) Non-Warranty Service
Should your repair costs exceed $50.00, you'll
be provided with an estimate advising you of your
options. Any charges for return shipping of non-
warranty repairs will be billed to you.
5) Payment Method
Please advise the Horizon Service Center
of the method of payment you prefer to use.
The Service Center accepts Visa or MasterCard.
When using credit cards, please include your
card number, expiration date and the name
as it appears on the card
For additional information or your nearest
Dynamite dealer, go directly to the Dynamite
Web Site at www.DynamiteRC.com or call
toll-free 877-504-0233.
Mach .28 engines are manufactured in Taiwan and
distributed worldwide by:
Horizon Hobby, Inc.
4105 Fieldstone Rd.
Champaign, IL 61822
www.horizonhobby.com
© 2005 Horizon Hobby, Inc.
8002
5/31/05 9:00:24 AM