XT225: 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

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.

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.

TW200 billet oil drain cap plug. 

Nice billet aluminum replacement for the old cast oil drain cap.

Hardened chrome vanadium steel with built in rubber insert to hold spark plug steady.

Thin wall bi-hex sockets designed to access narrow spark plug holes.

• Use with 3/8" drive ratchet or wrench
• Choose the one that fits your spark plug size:  14mm, 16mm, 18mm, or 21mm.

E3 Resistor Spark Plugs

The unique design of the electrode maximizes the power generated by the spark plug through Diamond Fire technology. This electrode combines advanced performance capabilities and innovative technology to enhance the shape of the flame kernel. Consequently, the flame front ignites the air/fuel mixture more rapidly, accelerates heat transfer into the combustion chamber, and creates a more concentrated pressure front, facilitating a quicker pressure rise during the cylinder power stroke. The outcome is a more efficient combustion process and improved engine performance, making this a truly premium spark plug.

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

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.

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.

• Contains degree wheel, standard unit indicator, adjustable magnetic stand, and three positive stops (10 mm, 12 mm and 14 mm threads)
• Can be used to install and adjust timing of any cam
• Wooden carrying case

Made from medium carbon steel with hardened jaws. It features spanner pins and the jaws open up to 5" wide. It's ideal for holding clutch hubs, flywheels, gears, sprockets, etc. Made by Motion Pro.

• Features 8mm spanner pins
• Jaws open up to 5 inches wide
• Recommended for square tooth style clutch hubs
• Not recommended for v-groove or half round style clutch hubs

This tool is designed to separate vertically split crank case halves on two and four stroke engines. Adjustable arms allow it to be used on multiple bolt patterns found on a variety of makes and models of motorcycles. Industrial grade steel construction with black oxide finish for long service life. Comes with 8mm mounting bolts and 6mm adapters. Protective carrying case included.

A 5-pack of easy to use disposable funnels to help make any oil or fluid change cleaner and more precise.

For easy removal of recessed oil filters.

Conical point screws pierces and grabs the metal end cap of the filter.

Reduces potential damage to the engine cases.

NOT for use on re-usable oil filters.

A 3-pack of easy to apply strips measure the temperature of engine, suspension, and radiator components. Temperature range 149° to 248°

Thread Chasers are designed to clean and re-cut damaged aluminum threads.

This kit contains the two sizes most common on metric motorcycles, M6x1.0 and M8x1.25.

Thread Chasers also remove dirt and metal shavings that become captured in thread grooves.

Uses 8mm or 10mm hex sockets, a Must for all tool kits.

• 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.

32-Blade Dual-Reading Tapered Combination Feeler Gauge Set

• 95mm (3.75") long taper blades hardened and polished
• Manufacturer's lifetime warranty
• Dual marked: 0.03-1.00mm and .0012-.040 in.