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4597 Calle Del Media
Ft. Mohave, AZ 86426
+1 (928) 763-7600
GroupKlemm@aol.com
About Group K
Performance Engine Kits
Kawasaki
Kawasaki 300 – Sleeper Engine and Pump Mods
Kawasaki JS 440- High Performance Mods
Kawasaki JS 550 – Engine Modification Kits
Kawasaki JS 550 – High Performance Mods
Kawasaki 650 – High Performance Mods
Kawasaki 750 – High Performance Mods
Kawasaki SXI Pro 750 – Racing Mods
Kawasaki SXR 800 & SXI 750 – 849cc Big Bore Mods
Kawasaki SXR 800 – High Performance Mods
Kawasaki SXR 800 – 849cc IJSBA Stock Class Upgrade
Kawasaki 900-1100 – Sleeper Kits for Triples
Kawasaki STX 1100 – Big Bore Hammer Kit
Kawasaki STX 1100 Di – High Performance Mods
Kawasaki STXR 1200 & Ultra 1350 – Single Pipe Engine Kits
Sea Doo
Sea Doo 720 – Recreational Engine Mods
Sea Doo 785 – Recreational Engine Mods
Sea Doo 785 – Technical Updates
Sea Doo 950 – Technical Updates
Sea Doo 951 – Y2K Engine Mods
Sea Doo 951 GTX Di – High Performance Mods
Sea Doo Jet Boat – High Performance Mods
Yamaha
Yamaha 633-701 – Recreational Engine Mods
Yamaha 701 – Big Bore Kits
Yamaha 701 – Dual Carb Mods
Yamaha GP800 – High Performance Mods
Yamaha Super Jet 845cc – Big Bore Hammer Mods
Yamaha 1100-1200 – Sleeper Kits for Triples
Yamaha 1200 GPR-XL-XLL – Recreational Mods
Yamaha GPR-XLL-XLT 1390 – Big Bore
Yamaha Super Jet – Racing Mods
Yamaha Triples – Technical Updates
Yamaha Wave Blaster 2 – Performance Mods
Yamaha 2-Cycle Jet-Boats
Polaris
Polaris 750
Polaris 1050 Engine
Tigershark
Tigershark 650cc Engines – All Models
Resto-Mod’s
General Tech Info
Air Leaks
Carburetor Fine Tuning Guide
Carburetor Fine Tuning Guide – Advanced
Compression Ratios & Measurement
Gasoline’s – 1995 to 1996
Gasoline’s – 1996 to 1997
High Performance PWC Carburetion
Instruments of Speed
Piston Seizures
Rear Cylinder Piston Seizures
Yamaha Strokers
Archives
Between The Lines – Preface
Between The Lines – 1996
Offshore Racing 1996
Offshore Racing 1997
Between The Lines – 1997
Competition – High Performance PWCs for 1998
FAQ
How to Buy a Used PWC
Will My 2-Cycle PWC be Banned
Why Build a 1990s 2-Cycle Resto-Mod
How 4-Strokes Compare to 1990s 2-Strokes
Menu
About Group K
Performance Engine Kits
Kawasaki
Kawasaki 300 – Sleeper Engine and Pump Mods
Kawasaki JS 440- High Performance Mods
Kawasaki JS 550 – Engine Modification Kits
Kawasaki JS 550 – High Performance Mods
Kawasaki 650 – High Performance Mods
Kawasaki 750 – High Performance Mods
Kawasaki SXI Pro 750 – Racing Mods
Kawasaki SXR 800 & SXI 750 – 849cc Big Bore Mods
Kawasaki SXR 800 – High Performance Mods
Kawasaki SXR 800 – 849cc IJSBA Stock Class Upgrade
Kawasaki 900-1100 – Sleeper Kits for Triples
Kawasaki STX 1100 – Big Bore Hammer Kit
Kawasaki STX 1100 Di – High Performance Mods
Kawasaki STXR 1200 & Ultra 1350 – Single Pipe Engine Kits
Sea Doo
Sea Doo 720 – Recreational Engine Mods
Sea Doo 785 – Recreational Engine Mods
Sea Doo 785 – Technical Updates
Sea Doo 950 – Technical Updates
Sea Doo 951 – Y2K Engine Mods
Sea Doo 951 GTX Di – High Performance Mods
Sea Doo Jet Boat – High Performance Mods
Yamaha
Yamaha 633-701 – Recreational Engine Mods
Yamaha 701 – Big Bore Kits
Yamaha 701 – Dual Carb Mods
Yamaha GP800 – High Performance Mods
Yamaha Super Jet 845cc – Big Bore Hammer Mods
Yamaha 1100-1200 – Sleeper Kits for Triples
Yamaha 1200 GPR-XL-XLL – Recreational Mods
Yamaha GPR-XLL-XLT 1390 – Big Bore
Yamaha Super Jet – Racing Mods
Yamaha Triples – Technical Updates
Yamaha Wave Blaster 2 – Performance Mods
Yamaha 2-Cycle Jet-Boats
Polaris
Polaris 750
Polaris 1050 Engine
Tigershark
Tigershark 650cc Engines – All Models
Resto-Mod’s
General Tech Info
Air Leaks
Carburetor Fine Tuning Guide
Carburetor Fine Tuning Guide – Advanced
Compression Ratios & Measurement
Gasoline’s – 1995 to 1996
Gasoline’s – 1996 to 1997
High Performance PWC Carburetion
Instruments of Speed
Piston Seizures
Rear Cylinder Piston Seizures
Yamaha Strokers
Archives
Between The Lines – Preface
Between The Lines – 1996
Offshore Racing 1996
Offshore Racing 1997
Between The Lines – 1997
Competition – High Performance PWCs for 1998
FAQ
How to Buy a Used PWC
Will My 2-Cycle PWC be Banned
Why Build a 1990s 2-Cycle Resto-Mod
How 4-Strokes Compare to 1990s 2-Strokes
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