All XTM Racing engines returned for warranty service must be within the warranty terms as stated on the warranty card provided with
your engine. Do not return the engine to the place of purchase. They are not authorized or equipped to perform warranty work on XTM
Racing products. When requesting warranty service, please observe the following guidelines:
●
Always send the complete engine including the carburetor. The engine must
be removed from the model.
●
Include a note detailing the problem or service you are requesting. Service
cannot be provided without this information. Include your daytime phone
number in the event we need more details pertaining to the service requested.
●
You may request an estimate of services at the time you return your engine for
service. An omission of this request implies permission for Global Services to
service your engine at our discretion.
●
Include a method of payment for any service charges. If not specified, the unit
will be returned to you C.O.D.
●
Send the engine to us by United Parcel Service, Federal Express or by
Insured Mail. Postage is not refundable. Send to:
PROBLEM CAUSE SOLUTION
1) Engine does not start A) Failed glow plug A) Replace glow plug with a new one
B) Glow Starter not charged and/or faulty B) Fully charge glow starter and/or replace
C) Idle mixture screw set too lean C) Reset idle mixture to factory setting
D) Old or contaminated fuel D) Replace with new fuel
E) Engine flooded with too much fuel E) Remove glow plug and expel fuel from cylinder
F) Air leak in fuel system and/or engine F) Replace fuel lines and/or tighten all engine bolts
2) Engine does not draw fuel A) Air leak in fuel system and/or engine A) Replace fuel lines and/or tighten all engine bolts
B) High speed needle valve fully closed B) Reset high speed needle valve to factory setting
C) Idle mixture screw set too lean C) Reset idle mixture to factory setting
D) Fuel lines kinked D) Check and straighten fuel lines
E) Defective fuel tank E) Replace fuel tank
3) Engine does not transition A) Failed and/or wrong type glow plug A) Replace with new recommended glow plug
B) Old and/or wrong type fuel B) Replace with new recommended fuel
C) High speed needle valve set too rich C) Reset high speed needle valve to leaner setting
D) Idle mixture set too lean D) Set idle mixture richer
E) Idle mixture set too rich E) Set idle mixture leaner
F) Air leak in fuel system and/or engine F) Replace fuel lines and/or tighten all engine bolts
4) Engine overheats A) Engine running too lean A) Richen high speed needle valve
B) Body too Restrictive B) Open larger vents in body to allow air to enter and exit
C) Wrong type of fuel used C) Use fuel recommended only for R/C cars
D) Engine not fully broken in D) Allow engine further break-in time
5) Engine vibrates excessively A) Engine and/or engine mounts loose A) Tighten all engine mounting bolts
6) Engine does not idle down A) Idle stop screw out of adjustment A) Adjust idle stop screw so carb barrel stays open 1mm
B) Air leak in fuel system and/or engine B) Check fuel lines, tank and engine bolts. Verify carb is
seated and tight
7) Pull-Start Slips A) One-way bearing saturated with fuel oil A) Remove one-way bearing and clean bearing and
starter shaft with rubbing alcohol
B) One-way bearing and/or starter shaft are worn B) Replace one-way bearing and/or starter shaft
C) Fuel used has too much oil content C) Use fuel with 10%-14% oil content
RETURNING FOR WARRANTY SERVICE
This troubleshooting guide has been provided to help you diagnose and solve most problems that you may encounter with
your XTM Racing 457 Pro 6-Port Rear Exhaust engine. Most problems encountered can be solved by carefully following the problem-
cause-solution sections below. If you cannot solve the problem using this troubleshooting guide, please feel free to contact us at the
address or phone number listed at the bottom of this page.
TROUBLESHOOTING GUIDE
In North America:
In the U.K.:
Global Services
18480 Bandilier Circle
Fountain Valley, CA 92708
Phone: (714) 963-0329
Fax: (714) 964-6236
Email: service@globalhobby.net
Ripmax LTD.
241 Green Street
Enfield, U.K.
EN3 7SJ
Phone: (0) 20 8282-7500
Fax: (0) 20 8282-7501
Email: mail@ripmax.com
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