Key facts
- Brand
- Duratrax
- Model
- Velocity 15
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-08
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DuraTrax Velocity 15 Engine Operation and Maintenance Manual
This manual provides instructions for operating, maintaining, and breaking in the DuraTrax Velocity 15 R/C model engine. It covers essential safety precautions regarding fuel handling and exhaust fumes, as well as specific steps for starting the engine using a recoil starter or half-throttle method.
The document details carburetor adjustment procedures, including settings for high-speed and low-speed needles and the throttle stop screw. It also outlines a critical six-tank break-in process to ensure long-term performance and includes information on warranty claims through Hobby Services.
All Duratrax Velocity 15 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What specific part must be purchased to install the slide valve carburetor?
You must purchase a straight servo horn to install the slide valve carburetor.
From: Duratrax Velocity 15 Slide Valve Carb Throttle Linkage Instructions
What tool is recommended to enlarge the servo horn hole if necessary?
It may be necessary to enlarge the hole with a hobby knife or a 2mm (3/32") drill bit.
From: Duratrax Velocity 15 Slide Valve Carb Throttle Linkage Instructions
What is the warranty period for this engine?
DuraTrax will warranty this engine for 90 days after the purchase date from defects in materials or workmanship.
From: DuraTrax Velocity 15 Engine Operation and Maintenance Manual
How should I adjust the high-speed needle valve?
The high-speed needle is pre-set at 2-1/2 turns out from fully closed, and can be turned counterclockwise to richen or clockwise to lean.
From: DuraTrax Velocity 15 Engine Operation and Maintenance Manual