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Engine Services

Complete engine rebuilds, top end service, and TBI/TPI tuning for KTM, Husqvarna, and GasGas hard enduro bikes.

Service Pricing

Top End Rebuild (2-stroke)

Piston, rings, gaskets, and cylinder inspection

$800-1200
Full Engine Rebuild

Complete bottom and top end rebuild

$1300-1500
Power Valve Service

Clean and adjust power valve system

$150

+ 2 more options available

Professional Engine Services for Hard Enduro

Your engine takes a beating in Utah’s extreme terrain. From the fine moondust of the west desert to the high-altitude punishment of the Wasatch Range, we keep your motor running strong when others fail.

Why Timing Matters

The difference between finishing a ride and walking out often comes down to preventive maintenance. We’ve seen too many riders ignore the signs:

  • Loss of bottom-end snap: First sign of ring wear
  • Hard starting: Worn piston increases blow-by
  • Excessive smoke: Rings aren’t sealing properly
  • Detonation: Lean conditions from worn components

Our Engine Services

Top End Rebuilds

The bread and butter of 2-stroke maintenance. We use only OEM or Vertex pistons (your choice) and inspect every component:

  • Cylinder bore measurement and inspection
  • Power valve cleaning and clearance check
  • Exhaust port chamfering if needed
  • Fresh gaskets throughout
  • Break-in recommendations specific to your riding

Full Engine Rebuilds

When the bottom end starts knocking or you’ve had a catastrophic failure:

  • Complete disassembly and inspection
  • Crank rebuild with new bearings and seals
  • Transmission inspection
  • Case bearing replacement
  • All new gaskets and seals

TBI/TPI Tuning

Modern fuel injection needs modern solutions:

  • Diagnostic scan for error codes
  • Throttle body cleaning and sync
  • Injector testing and cleaning
  • Map sensor calibration
  • Custom mapping for your riding style

The Utah Factor

Elevation changes from 4,000 to 11,000 feet in a single ride mean your engine works harder here than almost anywhere else. We set up engines to handle:

  • Altitude compensation: Proper jetting/mapping for elevation
  • Heat management: Utah’s combination of slow technical sections and high-speed fire roads
  • Dust protection: Enhanced air filter setup and maintenance schedules
  • Fuel quality: Adjustments for varying octane availability

Service Intervals

2-Stroke Top End:

  • Recreation riders: 80-100 hours
  • Aggressive riders: 60-80 hours
  • Racers: 40-60 hours

4-Stroke Valve Checks:

  • Every 30-40 hours
  • More frequently if you ride a lot of technical terrain

Oil Changes:

  • 2-stroke transmission: Every 20 hours
  • 4-stroke engine: Every 15 hours

Pro Tips from the Shop

  1. Keep a hour meter: Guessing leads to expensive failures
  2. Change air filters often: Utah dust kills engines
  3. Use quality oil: The $3 you save isn’t worth a seized engine
  4. Listen to your bike: New noises mean stop and investigate

Don’t wait for a DNF to think about engine maintenance. Our comprehensive service keeps you on the trail, not on the trailer.

Complete Price List

Service Price
Top End Rebuild (2-stroke)

Piston, rings, gaskets, and cylinder inspection

$800-1200
Full Engine Rebuild

Complete bottom and top end rebuild

$1300-1500
Power Valve Service

Clean and adjust power valve system

$150
TBI/TPI Diagnostics

Electronic fuel injection troubleshooting

$70-160
Compression Test

Engine compression testing and analysis

$40

All prices are estimates. Final pricing depends on parts needed and bike condition. We'll always call before proceeding with any work.

Frequently Asked Questions

DIY

How-To: KTM 250/300 Top End Rebuild by Slavens Racing
13:42

More DIY Tutorials & Tips

KTM CARB vs KTM TPI vs KTM TBI: The Key Differences Explained

KTM CARB vs KTM TPI vs KTM TBI: The Key Differences Explained
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How-To: KTM/Hsq/GG 2-Stroke Power Valve Service

How-To: KTM/Hsq/GG 2-Stroke Power Valve Service
9:36

How-To: TBI Top End Rebuild by Slavens Racing

How-To: TBI Top End Rebuild by Slavens Racing
14:13

Ready to Schedule Your Service?

Contact us today to book your appointment or get a quote. We'll have your bike running perfectly for Utah's toughest trails.