Engine

Heavy-Duty clutch springs

• 15% stiffer than original
• Minimize clutch slip
• Reduce plate wear
• Improve power to ground

Gasket for the engine case cover over the clutch. Doing any clutch work, you probably want to replace this gasket so you don't have any leaks when you are all done with the project.

Fresh gasket for the ignition side cover.

Complete Gasket Set includes all the gaskets necessary to rebuild the entire engine and transmission, including valve seals.

This gasket set is the same as the Complete Gasket Set above but includes all the necessary oil seals as well.

Top End Gasket Set is designed for a piston replacement job and includes:

• Head Gasket
• Base Gasket
• Intake Gasket
• Exhaust Gasket

Providing unbeatable performance and exceptional value, Hiflofiltro is the best-selling brand of aftermarket filters for motorcycles, scooters, and ATVs worldwide. The filters are also supplied to original equipment manufacturers as well as private label brands.

Here are the O-Rings you need when you perform an oil change. The largest one and the smallest one go inside the oil filter housing cover. The second largest one goes on your oil drain plug. The second smallest one goes on your oil fill plug. Replacing these O-Rings regularly will help keep your engine from seeping oil.

Adjusting your valves or setting your cam chain tension? Here are the O-Rings that fit in the TDC sight plug and the crankshaft nut access plug.

Time to adjust your valves? Here are the O-Rings that fit in your Valve Covers on your Yamaha. Keep the oil inside your motor and grime out! This kit includes both O-Rings. Be sure to grab the feeler gauges and a special wrench to aid in adjusting your valves.

With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the motorcycle. Haynes books have clear instructions and plenty of photographs that show each step.

• Step-by-step procedures
• Easy-to-follow photos
• Complete troubleshooting section
• Valuable short cuts
• Color spark plug diagnosis

Complete coverage for your Yamaha Trail Bikes covering PW, RT, TT-R and XT225/350 models for 1981 thru 2000.

E3 Resistor Spark Plugs

• Unique electrode shape maximizes the power created by the spark plug – Diamond Fire technology
• Electrode is a combination of performance and technology that results in an improved flame kernel shape
• This flame front ignites the bulk air/fuel mixture faster, moves heat into the combustion chamber faster and creates a more localized pressure front for faster pressure rise during the cylinder power stroke
• The result is more complete combustion and an improvement in engine performance
• A truly premium performance plug
• Sold individually, unless otherwise stated.

Iridium spark plugs are made with premium quality materials.

Iridium plugs last longer than standard ones, meaning you won't have to replace them as often.

• The ultimate in the evolution of spark plug technology and performance from an industry leader
• The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
• Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
• Metal shell plating has enhanced anti corrosion qualities

Sold individually, unless otherwise stated.

Keep your motor running right with fresh spark plugs!

NGK is one of the world's largest manufacturer of spark plugs, whose products are used as original equipment (OE) on countless motorcycle and automobile models.

• High-quality materials and superior construction for serious power and reliability
  • Pure alumina silicate ceramic insulator provides high strength and better heat transfer
  • Deep-seated copper core for a wider heat range
  • Nickel alloy tip for longer life
  • Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Choosing the right high-quality plugs prevents fouling from running too cool and preignition from running too hot
• NGK plugs available for almost every application and riding style

A 'wrench style' tool to turn the 'square top' tappet screws. The wrench does a better job of holding the adjuster screw still while tightening the locknut. Slim and flat, this tool is easy to carry in a tool pack.

• Allows precise valve lash adjustment without disturbing the setting when the lock nut is fastened
• Knurled knob on adjuster drivers ensure a precise and secure grip
• Integrated repositionable wrench handle holds the lock nut while the drivers are used to loosen or tighten the valve adjustment screw

Set includes:

• (1) 10mm steel socket wrench
• (1) 3mm square tappet adjuster

A set of feeler gauges so you can adjust the valves on your Yamaha. Yamaha says that when the bike is cold, the Intake should be between .002" and .004" and the Exhaust should be between .006" and .007".

This set includes one gauge with a .004" on one end and a .005" on the other for your intake side and another with a .006" and .008" for the exhaust side.