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Mikuni VM Round Slide Series 36mm Carburetor. These are the most popular high performance single carburetors in the sport of motorcycling. Mikuni's VM Series round slide single carburetors have proven themselves as the performance standard for use in any single cylinder motorcycle and ATV applications for motocross, enduro and trail riding, to flat track racing and road racing on both 2-stroke and 4-stroke engines. Performance features for the VM Series Carburetors include a large selection of bore sizes for increased fuel mixture flow to match engine modifications. And the VM Series offers a wide range of tuning components to allow precise fuel mixture metering in any application, at any throttle setting, under any riding conditions. Click on picture for larger picture and jetting specs.
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Mikuni VM Round Slide Series 38mm Carburetor. These are the most popular high performance single carburetors in the sport of motorcycling. Mikuni's VM Series round slide single carburetors have proven themselves as the performance standard for use in any single cylinder motorcycle and ATV applications for motocross, enduro and trail riding, to flat track racing and road racing on both 2-stroke and 4-stroke engines. Performance features for the VM Series Carburetors include a large selection of bore sizes for increased fuel mixture flow to match engine modifications. And the VM Series offers a wide range of tuning components to allow precise fuel mixture metering in any application, at any throttle setting, under any riding conditions. Click on picture for larger picture and jetting specs.
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Mikuni VM Round Slide Series 32mm Carburetor. Right Idle Screw.
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Mikuni VM Round Slide Series 32mm Carburetor. Left Idle Screw.
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Mikuni Power Jet Kit. Prevents leaning out during extended full throttle runs. Enables you to convert your size 30mm-44mm VM/TM carburetor to a Power Jet Carburetor. Comes complete with all parts needed to complete the conversion. Instructions included.
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Long-filament fiberglass made especially for 2 stroke muffler packing, suitable for aftermarket expansion chambers, Measures 10.5" x 16", more than enough to repack virtually any 2-stroke silencer. Resists breakdown up to 1200 degrees F. Made in the U.S.A.
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Manifolds for 30-34mm Carbs(VM, TM, PWK, PJ) with Boost/Crossover holes. By Moose Racing, high quality material resistant to cracking or ripping, outperforms stock manifolds. Specifically formulated to resist harsh fuels (including methanol) and oils. Carb side opening i.d. accomodates 40mm carb spigot. Includes manifold gaskets & clamps. (recommended for use with larger 34mm carbs on RD350/400 or RZ350 applications). Perfect for use with boost bottle.
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Designed to check for air leaks in 2-stroke engines. Includes air pressure gauge, pump-up bulb and most fittings and adapters for single and twin cylinder 2-stroke motorcycle engines. Packed in a convenient carry box, complete with instructions Made in the U.S.A. This tool is avaialble for rent from Economy Cycle $75/$300 deposit. Please call if interested 224-430-7971
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Timing kit for inspection and adjustment of ignition timing; gauge face size 1 1/2". Comes with adapter for air-cooled 2 strokes. Although this is an excellent gauge, we do not recommend it for the RD250/350/400/R5/DS7 as there isn't enough clearance to use the gauge with the engine installed in the frame. For the RD250/350/400/R5/DS7 or any bike with minimal clearance between the frame and spark plug, we recommend the Economy Cycle Dial Gauge made specifically for RD and Yamaha twins, which can be found here Economy Cycle Dial Gauge
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For use when tuning a motorcycle with the gas tank removed. Includes 4Í of 1/4î fuel line and an in-line fuel petcock. Holds up to 2,000cc or 1/2 gallon of fluid.
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Jumper cables made specifically for motorcycle and powersports use.
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NGK Iridium Spark Plug RZ350. (BR8EIX Stock). The ultimate in the evolution of spark plug technology and performance from the 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. New metal shell plating has enhanced anti-corrosion qualities. Choose heat range, quantity, and click add to cart.
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***NOTE*** Most non-resistor type spark plugs (B8HS, B8ES) have been discontinued by NGK, you can substitute resistor type spark plugs (BR8HS, BR8ES) without issue). The NGK Standard Spark Plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The Spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This Spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This Spark plug has resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability. It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head. Choose spark plug and click add to cart.
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Yamaha RZ350 Oil Pump Grommet Blank. This is a solid plug with no openings for oil lines and is intended to be used on bikes that premix and do not use the oil pump or oil lines.
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Yamaha RZ350 Oil Pump Block Off Plate Kit. Kit includes:
- CNC aluminum block off plate
- Yamaha oil pump gasket
- Replacement engine case grommet block (solid, no openings for oil lines)
- Stainless steel allen bolts and lock washers
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Oil Pump Housing Main Gaket - Yamaha RD350 RD400 RD250 R5 DS6/7 RZ350, sold each.
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Oil Pump Rebuild Kit RD250/350/400 R5/LC350/YDS6/7 & Most Yamaha Oil Pumps from the 60's,70's & 80's Comprehensive kit - includes seals, gaskets, and screws. Covers most vintage Yamaha Motorcycle Oil Pumps from the 60's,70's and 80's Includes the following seals: Main, Priming wheel, Shaft, Piston (includes 3 sizes) Indludes the following gaskets: Main Pump Body, Pump to Case, and Bleed screw Includes new proper JIS (Japanese Industrial Standard) screws for pump body and bleed screw Includes Economy Cycle Oil Pump Rebuild Guide Not Included: Plug for pumps without a priming wheel (later 400's & RZ350) These rarely need replacing, the rest of the kit will work with these type pumps Satisfaction guaranteed or your money back One year warranty against manufacturing defects
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Oil Pump Shaft Thrust Washer (steel) - Yamaha RD350 RD400 RD250 RZ350, sold each. 90201-08624-00
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Yamaha Oil Pump Shims OEM Sold each. - Available in .03mm .05mm .10mm Generic oil pump shims available in stainless .10mm
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Parts Unlimited Brake Lever for Yamaha RZ350.
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Parts Unlimited Conventional Battery, stock replacement for Yamaha RZ350. Parts Unlimited premium-quality. Parts Unlimited batteries are a high-quality, low-cost alternative to OEM battery replacement Built to the same exacting specifications and quality control standards as top brand-name Japanese batteries Rugged and reliable starting power for your machine **Batteries will ship via UPS - Provide a street address for shipping - UPS will not ship to a PO Box**. Battery does not include acid. *additional shipping costs apply to this item, calculated at checkout.
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Parts Unlimited Front Fork Seal Set for Yamaha RZ350/RD400F
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Parts+Plus Steering Stem Bearings. Tapered roller type for superior performance. Made in Japan. Compatible with RD250/350/400, RZ350, LC350 models. Note this product comes in 2 types of package branding (Parts+Plus and K&L) but is the same part/same manufacture.
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USB Programmer for PC/Laptop for use with Zeeltronic PCDI10V CDI for Yamaha RZ350. Includes USB adapter and cords for connection to computer/PCDI10V and easy to use software. Note: This item not eligible for discount or special promotions.
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Pirelli Sport Demon Tires for your RD or RZ! Multiple Sizes Front/Rear
The front tire profile is designed to greatly improve handling with excellent water evacuation thanks to central sine-wave groove. The multiple-radius rear tire profile provides lighter and more precise handling and stability in all riding conditions with radial-like handling from bias-ply tires.
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Plastic Repair Kit, by ThreeBond - Repairs broken or cracked hard-to-bond plastic quickly and economically. Ideal for motorcycle body plastic, mounting tabs, brackets, snowmobile and watercraft hoods, etc. No mixing required, kit includes glue, primer, accelerator, glue remover, sandpaper, fiberglass and application sticks.
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Pro-Lite Rotor for the RZ350 Front (R/L)/Rear by EBC. Complete bolt-on and go rotor assembly. Excellent choice when upgrading or replacing OEM brake rotors, Sold each.
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Sale!Progressive springs offer a soft initial spring rate for a plush ride while progressively wound design provides increased resistance to bottoming as spring compresses. Improve handling while retaining OEM geometry Made in the U.S.A.! Huge improvement over stock RD400 springs, much more firm for better performance handling. These work great with 10W fork oil, available here on the site. Sold in pairs. Note: This product has additional shipping charges
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ProX Connecting Rod Kit - Yamaha RZ350/RZ350YPVS (all). Connecting Rod Kit by ProX, includes connecting rod, small end bearing, big end bearing, pin and thrustwashers. PROX Connecting Rod Kits are made out of the toughest alloys available today. O.E. specifications and tolerances are meticulously maintained, a guarantee for easy installation and trouble free performance. Sold each. Sample picture. Rod kits subject to manufacturer availability, your kit will be shipped as soon as possible.
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ProX Top End Bearing - RZ350/LC350 (all) 16x21x22
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Quick Disconnect Fuel Coupling with dual shutoff in 1/4" or 5/16". When connected fuel will flow & when disconnected fuel will not flow from either side. Use Dual shut-off for fuel tanks equipped with a cross-over line. Capable of withstanding temperatures of -40 degrees F to 180 degrees F. These quick disconnect fittings utilize Nitrile (Buna N) o-rings and may not be compatible with some race fuels. Made in the U.S.A. Choose size and click add to cart. We recommend keeping as little slack as possible in the crossover line to keep the coupler up and away from the heat of the engine.
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Race Tech Fork Springs - Yamaha RZ350. Available in .00kg, .85kg and .90kg spring rates. Recommneded spring rates: Rider weight up to 175lbs - .80kg Rider weight 175-225lbs - .85kg Rider weight 225-275 - .90kg A High Performance Spring has a high stiffness to mass ratio. In other words, it is light weight for a particular rate. This requires the finest materials. And, of course, you want the specific rate you’re paying for. Most manufacturers hold rates within +/-5%, this means a spring marked 5.0 kg/mm could be a 4.75 or even 5.25. (A spring marked 5.0 could be the same rate as one marked 5.4!) Race Tech Springs have extremely accurate rates because we 100% test our springs. Chrome silicon, high stiffness to mass ratio, shot peened, heat treated and pre-set (no sacking). These are the finest springs available, period! Note: This part is not elidgeable for discount or promotion. Note: This part has additonal shipping charges.
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Race Tech Gold Valve Fork Emulators for RZ350Damping rod forks are notorious for being both too harsh yet too easy to bottom. This is the nature of damping rod fixed orifice forks. In the past all that could be done to improve these forks was change spring rate, oil viscosity or damping hole size, until now. Cartridge Emulators make damping rod style forks perform like well-tuned cartridge forks. These tunable valves sit on top of the damping rods and are held in place by the main springs. This makes them both simple to install and completely tunable for all conditions and rider preferences. Track tests have consistently produce lap times that are 1 or more seconds a lap faster while Cruisers and Gold Wing owners rave at the increased control and ride quality. Note: This part is not elidgeable for discount or promotion.
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Racing Magnetic Oil Drain Plug for RD's/R5/DS7/RZ350. Also fits most Yamaha motorcycle from the 60's through the mid 80's. Magnetic oil drain plug collects metal particles and debris protecting your engine from damage. Includes washer.
- Predrilled holes for easy safety wiring
- Kit comes complete with pre drilled cap and locking clip already safety wired to a mounting tab
- Strong embedded magnet
- CNC from high quality aluminum
- Anodized in Black or Blue
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Black Allen Manifold Bolt Kit. 8 High quality black Allen (socket head) bolts. Also available in stainless. Available in standard length or long for manifolds with reed block spacer. Standard length pictured. Click add to cart to choose size.
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Stainless Allen Manifold Bolt Kit. 8 High quality stainless Allen (socket head) bolts. Also available in black. Available in standard length or long for manifolds with reed block spacer. Standard length pictured. Click add to cart to choose size.
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RD250/350/RD400/RZ350/R5 (all years) Speedometer Cable - Black. Will send either Parts Unlimited or Motion Pro (same cable), meets or exceeds OEM specifications.
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Rear Wheel Bearing Kit - RZ350 All Years by All Balls. Kit includes wheel bearings and seals for front wheel. Note:sample kit pictured, actual kit may vary slightly from bike to bike.
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Grip Glue by Renthal. Eliminates grip slipping and sliding. A must for medium and soft compound grips. .85oz tube.
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Road Grips Model 717. Feature Pro Grip duo-density technology. Proprietary GONT compound in two densities: one for extra grip on the bars to minimize movement, and the other on the outside of the grip to provide superior comfort and vibration absorption. 7/8" i.d. x 125mm long. Available in black, orange, red, blue, gray, green or yellow. Note: Black w/Black accents not pictured. Choose color and click add to cart.
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Road Race Grips by Renthal. 25mm grips with full diamond design, feature synthetic rubber compounds specially formulated to achieve the optimum combination of strength, tackiness and shock absorption. Available in soft, medium and firm compounds. Choose compound and click add to cart.
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RZ350 Battery Strap (all years/models) OEM Yamaha part.
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RZ350 Carburetor Float Set (sold each). 1 set required per carburetor. Reproduction part by K&S.
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RZ350 Clear Clutch Cover Kit - Anodized in Silver or Black by Siberdyne Motorcycle Parts. (Economy Cycle is the USA distributor for Siberdyne products). Note: This fits all years and versions of the RZ350 (worldwide). Also fits Banshee. Note: this part does not include the engine cover itself. See additional info below
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RZ350 Float Needle Assembly - Genuine Mikuni made in Japan. Includes metal tip needle for long life, needle seat and viton o-ring. Fits 1984/1985 USA RZ350. Sold each.
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RZ350 Float Needle Assembly - USA Models. Includes viton tipped float needle, needle seat, viton o-ring and clamp (clamp not pictured). Genuine Yamaha Part, 48H-14107-28-00
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RZ350 Front Caliper Boot - 4X8-25917-00-00 (larger one). Reproduction Part. Sold each.
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RZ350 Front Caliper Boot 2 - 5R2-25937-00-00 (smaller one). Reproduction Part. Sold each.
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RZ350 Oil Lines Grommet 4L0-13174-00 Reproduction. *Part no longer available from Yamaha* This part fits into the top of the engine cover and the oil feed/supply lines pass through it. Each sold separately.
