Product Description

The All-In-One Dirt Bike Service Kit for Every TrailMaster Motorcycle

Keep your TrailMaster dirt bike running strong with this complete service kit designed for every TrailMaster model — from the small-frame TM10 to the full-size MX250. Whether your rider is just learning or hitting trails every weekend, this kit makes annual and 10-hour maintenance easy, fast, and accurate.

No more guessing which spark plug, air filter, chain, or oil your bike needs. This kit includes the correct components for TrailMaster dirt bikes so your engine runs cooler, shifts smoother, and lasts longer.

Perfect for families, trail riders, and riders who want dealership-quality maintenance without the hassle.

?️ What’s Included in the TrailMaster Dirt Bike Service Kit

• 1 quart premium 4-stroke engine oil 

• Chain lube (high-tack formula for off-road use)

• Replacement drive chain (correct length for TrailMaster dirt bikes; includes master link)

• Air filter (model-specific fitment)

• Fuel filter (for carbureted models only)

• Standard spark plug (correct heat range for TrailMaster engines)

• Funnel

• Shop rags

⚠️ Important Notes

EFI models (if applicable):

Many Trailmaster models are not available in EFI. If you have an EFI bio:

• Fuel filter will not be included
  
  

• Fuel link kit upgrade is not applicable

?️ Compatible Models

Small Frame (24–25" Seat Height)

• TM10

• TM11

• TM15

• SK110

Mid Frame (29–29.5" Seat Height)

• TM23

• MK110

• MK125

Large Frame (32" Seat Height)

• TM24

Full-Size (35" Seat Height)

• MX250

This kit covers all TrailMaster dirt bike engine sizes:
110cc, 125cc, 140cc, and 250cc 4-stroke engines.

? Recommended Service Interval

TrailMaster dirt bikes should be serviced:

• Every 10 hours of riding, or

• Every 6 months, or

• Immediately after any muddy, dusty, or wet ride

Dirt bikes take more abuse than go-karts, especially when young riders are still learning throttle control and braking. Regular service protects the clutch, carburetor, chain, air system, and top end.

? Why Riders Choose GoKartMasters Kits Over Competitors

Other stores sell random, generic “dirt bike kits” that may or may not fit TrailMaster.
Our kits include:

• Correct chain length

• Correct  spark plug

• Correct air filter size

• Correct style fuel filter

• Oil 

This eliminates wrong-part returns and keeps your TrailMaster dirt bike riding safely and reliably.

Even families who bought TrailMaster bikes somewhere else come to GKM for maintenance — because you make the process simple, accurate, and dependable.