TW200: Engine

Heavy-Duty clutch springs

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

Replace your worn out clutch with a high quality Clutch Kit. This kit includes new friction discs for your clutch pack.

Please note: kit includes friction discs only, steel plates and springs not included.

Complete set of friction plates, HD springs and steel separator plates prevent premature driven plate wear, oil muddying and loss of stack height. Built with swaged aluminum carriers that spread the load on the clutch basket and prevent clutch basket "dogging". Anti-swell, alloy impregnated heavy-duty facings for smooth clutch action. Allows modulation, unlike paper clutches which tend to snatch. Don't forget to add a fresh gasket.

Here's another item you might want to replace when you are changing out your front sprocket. Because of it's big back tire, the chain is further away from the center of the engine than most bikes. The engineers at Yamaha decided they had better support the end of the countershaft since it is cantilevered out there so far. They also figured they had better feed some oil out there as well. These Countershaft Seals keep that oil where it belongs, lubricating the countershaft outer support.

Kit includes all seals in the TW200 engine (including crank shaft seals) except valve stem seals. These are high-quality seals made in the USA.

Got a little oil seepage or changing out your clutch pack? Here is the gasket you need for the right hand side case cover of your TW200. This is the same side of the engine as your kickstart lever and/or rear brake lever.

Changing your countershaft sprocket? Here is the gasket you need for the left hand side case cover of your TW200. This is the same side of the engine as your gear shift lever and chain.

Rebuilding your engine? Here is a complete gasket kit for your TW200. Includes: Head Gasket, Base Gasket, Stud Gasket, Head Side Cover O-Ring, two Valve Cover O-Rings, Base O-Ring, Stud O-Ring, Rocker Shaft O-Ring, two Cam Chain Tensioner O-Rings, Intake Manifold O-Ring, two Valve Stem Seals, Exhaust Gasket, Left and Right Side Cover Gaskets, Pump Cover Gasket, TDC Plug O-Ring, Crankshaft Nut Plug O-Ring, and Oil Filler Plug O-Ring.

Leaking Base Gasket? Replacing your worn Rings? Here are the gaskets you need to put your TW200 top end back together after a tear down. Includes: Head Gasket, Base Gasket, Stud Gasket, Head Side Cover O-Ring, two Valve Cover O-Rings, Base O-Ring, Stud O-Ring, Rocker Shaft O-Ring, two Cam Chain Tensioner O-Rings, Intake Manifold O-Ring, two Valve Stem Seals, and 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.

This is all you need to not only change your oil, but protect your motor as well. We include a billet oil drain plug cap, a 5-pack of oil filters, and new O-Rings to replace any you have that may be leaking or worn.

• Billet Oil Drain Plug Cap
• O-Ring Kit
• 5-Pack of Oil Filters

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.

This Official 2001-up Yamaha TW200 Trailway Factory Service Manual provides repair, maintenance and service information for 2001-up Yamaha TW200 Trailway motorcycles. Most of the information is useful for the 1987-2000 models as well.

• 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

Getting ready to adjust your valves? Here is a set of feeler gauges to make the job a little easier. One tool has .002" & .003" gauges the other has .004" & .005" gauges. Yamaha lists the specs as follows: .002"-.004" Intake and .004"-.006" Exhaust, clearance measured when engine is cold.

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.