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Diagnosing Yamaha’s EFI Self-Diagnostic Systems

For years now technicians and educated vehicle owners have enjoyed the benefits of the self-diagnostic functions of fuel injection systems. Evaluating fault codes is now a standard task in powersport vehicle service. Some fuel injection systems have expanded onboard diagnostic abilities that can be used to troubleshoot issues in addition to the simple fault codes.

Mechanisms of Fuel Delivery: The Float Valve

In a previous issue we went over mechanical fuel delivery system problems associated with carburetor equipped engines. The final mechanism of fuel delivery to the carburetor is the float valve. The float valve is a fantastically simple mechanism to regulate fuel needs for the carburetor. Unfortunately, it is often problematic when fuel is left in

Gravity and Vacuum Fuel Pumps: Maintaining Efficiency

Old fuel is clogging up fuel systems and seals are deteriorating as power sports vehicles sit idle over the cold winter.

Liquid Cooled Engine Care

Many industry folks have predicted the end of powerful air-cooled engines with emissions regulations pushing manufacturers to move toward leaner, hotter-burning fuel mixtures that have increased cooling needs.

Coolant Replacement And Bleeding for Powersports Engines

The following tips will help you change coolant in powersports engines.

Provide Service Specifications To Your Techs

1. Veteran technicians have the knowledge and experience to perform the operations of day-to-day service jobs in their sleep. If you give a good tech a list of service items and a vehicle he has never seen before, he will be able to work out how to perform the procedures on his own. However, without

Drum Brake Maintenance

It’s important to work in a comprehensive manner when inspecting and servicing drum brakes. Don’t assume the problem lies with a specific component. Poor drum brake performance can be caused by a problem with almost any component, and the only way to make sure the system works correctly is to examine it as a whole.

Engine Removal and Installation

Cyclepedia.com offers advice on how to make the engine removal and installation processes as smooth as possible.

Scooter Maintenance

With more and more scooters on the road racking up miles, there is a greater need for service work on these machines. Read on for key maintenance tips that are specific to these powersports units.

On Board Diagnostics

As technology spreads across the powersports world, systems for dealing with that technology evolve, advance and become more accessible.

Check All the Nuts and Bolts

Everyone knows how important oil and air filter changes are to the health of a bike. Checking the condition of brakes, greasing the pivot points in the frame and keeping clean fuel in the intake system all top the list of tasks that must be done to make sure customers’ rides are ready to go

Shaft Drive Systems Maintenance for Motorcycles

Six ways to keep your shaft drive systems up to snuff.