ENGINE REBUILDING

Rebuild History

Mail order repair services are quickly becoming the norm. Now you can ship your motor across the country and have it rebuilt by qualified, professional and experienced technicians that specialize in motocross 2 and 4 stroke motors. Our turnarounds times may be faster and our prices lower than your local dealerships. By specializing, and working on thousands of dirt bike motors, we understand the inherent problems associated with each model and have upgrades and factory updates that most general mechanics are not aware of. Brent Kirk built this business after 45 years of working experience in the motocross racing industry. We have evolved from the 2-strokes starting in 1969 to the most current 4-strokes. Our knowledge base of what and why parts fail, especially in recent 4-strokes, has awarded us with achievements in valve seat and guide machining and metal technologies. Many of our findings can be found in reports on the internet and our website.

4-Stroke Complete Rebuild

Complete 4-stroke rebuilds are quoted on the high side with normal wear parts. These parts include a new Hotrod crankshaft assembly, main bearings, crank seals, cam chain, piston, rings, clips, pin, valves, gaskets, seals, and oil filter. We inspect the complete motor and transmission for needed repairs and will give a complete quote. Cylinder plating, guides, and seat replacements are not included in the quote prices below. Modifications and upgrades for speed and reliability can be customized to suite your needs.

Complete Engine Rebuild

  • 150cc CRF $998
  • 250cc CR KX RM $1295
  • 250cc YZ / WR $1569
  • 450cc CR KX RM $1395
  • 450cc YZ / WR $1669
  • KTM Call for Prices
  • Pit Bike engines $795

Top End Rebuild Only

  • 150cc CR $695
  • 250cc CR KX RM $795
  • 250cc YZ / WR $995
  • 450cc CR KX RM $849
  • 450cc YZ / WR $995
  • KTM Call for Prices
  • Pit Bike Engines $349
..

The prices above are average rebuild parts. Includes normal wear parts and labor. This is with the engine out of the frame. A complete estimate and suggestions are made once the engine is torn down. Performance parts, porting and other engine modifications can be added and is usually a lot less expensive when done during the rebuild.

2-Stroke Complete Rebuilds

Complete 2-Stroke rebuilds are quoted on the high side with normal wear parts. These parts include a new Hotrod crankshaft assembly, main bearings, crank, seals, piston, rings, clips, pin, gaskets, seals, and spark plug. We inspect the complete motor and transmission for needed repairs and will give a complete quote. Cylinder plating, cylinder boring, or power valve parts, and needed rebuilding is not included in the estimate below. Modification and upgrades parts for speed and reliability can be customized to suit your needs.

Complete Engine Rebuild

  • 65cc $549.00
  • 85 – 100cc $595.00
  • 125cc $689.00
  • 250cc $769.00

Top End Rebuild Only

  • 65cc $269.00
  • 85 – 100cc $299.00
  • 125cc $319.00
  • 250cc $359.00
..

The prices above are average rebuild costs. Includes normal wear parts and labor. Price is with engine out of the frame. A compete estimate and suggestions are made once the engine is torn down. Performance parts, porting and other engine modifications can be added and is usually less expensive when done during the rebuild. Parts figured in the complete rebuild are a crankshaft, main bearings and seals, piston kit, gaskets and spark plug. Top end rebuild parts are: a piston kit and gaskets.

A complete estimate will be made upon engine disassembly. Parts, other than normal wear items not mentioned in the prices, will be replaced at additional cost upon your approval. Such as damaged cylinders that need re-plating, case damage, head damage, gears, forks and clutch parts. Parts that are not needed in the above estimates will reduce the price. These prices are calculated with the engine out of the frame. We do not take in full bikes.

Warranty: Due to the nature and use of race engines most shops and re-builders do not offer a warranty of any kind. Fastheads offers a limited warranty that covers faulty workmanship for thirty days. Because we use other manufactures’ parts, we are not responsible for malfunctions on parts (unless installed incorrectly, which falls under workmanship warranty). We will help contact manufacture with you, but can not guarantee replacement from company. Engine damage and or seizure due to jetting, dirt or lack of oil or coolant are never covered. You must check you fluids before riding. Thoroughly break in and the test your engine within the thirty day period. If you have any problems, unexpected noises or concerns please call immediately.