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Four-Stroke Dirt Bike, Dual Sport & ATV Tech info on 4Strokes.com
4Strokes.com Technical: Non-Model Specific | Honda | Kawasaki | KTM | Suzuki | Yamaha | All Other Models
139QMB Maintenance Guidelines 139QMB Maintenance Guidelines - Engine & Rear Gearbox Oil Changes, Spark Plug Testing, Adjusting Valve Lash/Clearances, Testing Cylinder Compression, Testing Manifold Vacuum.

DR70 Shock ModificationBaja Motorsports DR70 Rear Shock Mod (Forums) - Here is one solution for replacing the rear mono-shock on the DR70. By RockOn

Exhaust Noise Test DataAdobe PDF file Exhaust Noise Test Data (67KB PDF) - Exhaust noise levels for ATK, Bombardier, BSA, Bultaco, Cannondale, CZ, Gas Gas, Husaberg, Husqvarna, Thunder, TM, and VOR dirt bikes with stock and aftermarket exhaust systems. Go to CA St Parks OHMV Website for latest edition. By John Franger
Free Lift Solution For Your Panterra 49cc (50) (Forums) - From the first day I bought the Panterra 50 for my son his biggest gripe was the ground clearance and it seemed to bottom out over the smallest of jumps. By soooner

Measurement of Exhaust Sound Levels of MotorcyclesAdobe PDF file Measurement of Exhaust Sound Levels of Motorcycles (40KB PDF file) - This SAE Standard establishes the test procedure, environment, and instrumentation for determining the sound levels of motorcycles under stationary conditions. By SAE Motorcycle Committee

Suzuki Mini Four-Stroke (to 110cc) Powertrain & Drivetrain Related SpecsMini Four-Stroke (to 110cc) Powertrain & Drivetrain Related Specs (Forums) by 4Strokes.com Forums members
DR70 Muffler ModificationModifying the Muffler of a DR70 (Forums) - In order to modify the exhaust to make it sound like the name brand bikes all you have to do is follow a few simple steps. By RockOn

Panterra 50 Rear Brake Lever ModPanterra 50 Rear Brake Lever Mod - New rear brake lever using a CRF70F brake pedal. By superhondaz50

Guide to Derestricting Panterra ScootersThe Guide to Derestricting Panterra Scooters (Forums) - Technical Specifications, Air Filter, Exhaust Deristricting, Transmission Deristricting, etc. By pranakhan

Links to "Other Model" Four-Stroke Technical Information on the Internet

  1. Alert: SunL SLA90 Youth ATV Recall for Front Brakes, Fuel Shutoff, and Handlebar Padding by CPSC
 
Got Tech Info? Send us "Other Model" 4-stroke related tech articles, tips and links, and we'll publish them to here!

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