JRPW is one of karting’s best equipped machine shops with state of the art machinery and techniques to keep you ahead of the pack. Every chore is done "in-house," nothing is sent out. This insures that you're getting the very best quality, service, and horsepower. Contact us for all your needs, if it can be done, we do it. Accurately and quickly. 

Machine Shop Services 2018

Align Bore and finish hone $65
Hone cylinder $12
Competition Valve Job $50
Remove and Replace Stock Valve Seat, Includes Valve Job, Minus seat $65
Install Oversize Valve Seats, Includes Valve Job, Minus Seats, Pair $140
Counterbore Valve Seat Area to un shroud valve $45
Brace and Support Block $85
Weld hole from broken rod From $45
Install full length guides, finish hone, machine seat Raptor ea. $30
Deck Head OHV $25
Deck Head Raptor $25
Deck Block $25
Port and Polish  Modifieds $55
Port and Polish AKRA $40
Bore Clone Carb $45
Blueprint valve  $6
Polish Crank $12
Machine Valve Bowls NKA $45
Machine Valve Bowls Modifieds $45
Install cylinder sleeves Flathead (includes sleeve)  $165
Machine Piston for correct deck height $15
Install cylinder sleeve OHV (includes sleeve) $185
Install 3” OHV cylinder sleeve (includes sleeve) $200
O-Ring cylinder head or block $45

Custom machine work, welding, and fabrication services are available, contact us for a quote. We specialize in aluminum welding and repair.                                                                                          
Custom Powder Coating
JRPW has quickly become the area leader for Professional, Show Quality, Powder Coating. Making your parts and pieces stand from the crowd, thats what we do at JRPW.

Engine Rebuilding
Rebuilds begin at $235 plus parts and machine work. Give JRPW a call today to get on the “Fast Track”

Some engines weren’t born breathing fire, that’s where we come in!

Clutch Blueprinting
JRPW proudly offers our clutch blueprinting service. Our clutches consistently win the race to turn one. We machine all the contact surfaces to insure the necessary flatness and surface finish. We match spring pressures, weights, and spring heights to provide the highest level of performance. We rebuild clutches of all brands and can help you get to turn one faster than ever before. Rebuilds are $35 plus parts.

JRPW Cut Tires and Tire Programs
Cutting tires is another one of our specialties at JRPW. We use the Jones Super True tire machine to cut and shape tires for your specific application. Tires are one of the most important aspects of karting and JRPW has the technology and expertise to provide you with the results you desire. Let us be your full service tire store. We stock Van-K wheels in all sizes to coincide with our extensive inventory of tires. We are also a full line Track tac Distributor and carry a complete line of tire chemicals. JRPW is also proud to offer our full service tire program. Let us handle your tires from the start all the way to victory lane. JRPW Cuts are a “Cut above the competition”. Contact us for details.

The rubber has never met the road like this before!

Jimmy Rivers is the author of the “Speed Shop Scholar”, a tech series featured monthly in “Chasen Racen Illustrated”, Dirt Karting’s premier publication. Covering a wide variety of topics to assist the racer.

View our Tech Archives!

Online Specials

• Signature Series Pro Clone Engine Package $1,150
• Free Commercial Shipping on Recon Chassis C/E & Elite
• Free Powder Coat with any new JRPW Engine Package