YAMAHA:  YZ 250F

Ongoing refinement to chassis and engine produce an amazingly balanced, light-handling machine with performance that's accessible to all levels of riders.


Tokyomods Wet Sump Kit
Tokyomods Neutral Sensor Removal Plate
Tokyomods Carb Mod
New Modified Carburetor
Less Tension Throttle Spring
Tokyomods / Vortex 10 Map ECU
Tokyomods 10 Map Ignition
Exhaust
Tokyomods Engine Parts
CV4 Radiator Hose Kit
Hotcams
Hinson
Tokyomods Wet Sump Kit

The Tokyomods Wet Sump Kit reduces the overall weight of the bike considerably. This is accomplished by removing the external oil tank, oil lines and other unnecessary hardware from your machine. This also helps to eliminate the possibility of damage to the tank or oil lines causing oil loss and ultimately engine failure.
Additionally, the overall handling is significantly improved with the Tokyomods Wet Sump Kit as a direct result of the bikes weight reduction. Currently all of the top Yamaha factory and satellite race teams
use the wet sump system on their race machines, now you can to.

Price: $139.95 FITS 02-13 YZ250F
Tokyomods YZF Neutral Switch Removal Plate
Remove your neutral switch sensor and eliminate weight on your YZ250F 02-13. Our billet block off plate is anodized blue and includes a new o-ring for a leak free seal.
Price $29.95 FITS 02-13 YZ250F
Tokyomods Carburetor Mod
Tokyomods is the originator of four stroke carburetor modifications .The Tokyomods Carb Mod will dramatically improve the performance of your four stroke motocross or off-road machine. We start by completely disassembling and cleaning your entire carburetor, along with inspecting and replacing all damaged or worn parts. The process continues with modifying and installing the Tokyomods jetting specs together with any accessories that the customer requests. Lastly, every unit is bench tested before it’s packaged and shipped out to the customer. The majority of carburetors that Tokyomods modifies have some sort of other pre existing problem; this is why we won’t just sell a "jet kit", Jet kits alone are not enough to keep today’s complex carburetors performing at their best.
Tokyomods Carb Mod $249.95
New Modified Carburetor
YZ250F New Modified Carburetor $915.95
YZ250F New Modified Carburetor with R&D Float Bowl $1,115.95
WR250F New Modified Carburetor $949.95
WR250F New Modified Carburetor with R&D Float Bowl $1,149.95
Tokyomods Less Tension Throttle Spring
Is your throttle to stiff? This Tokyomods low tension throttle return spring was designed to reduce the stiff feeling in your Bike or ATV throttle. This custom throttle spring works with any Keihin FCR type Carburetors. This is a great addition to the Tokyomods Carburetor modification.
Price $29.95 FITS 05-13 YZ250F
Tokyomods / Vortex 10 Map ECU

The 10 Map ECU is like our 10 Map Ignition and EFI Interceptor rolled into one module controlling not only ignition timing and Voltage output but also fuel mapping and other engine management functions. The result is more power, better power, easier starting and ultimately faster lap times.
This unit comes pre-programmed with 10 Performance Fuel & Ignition maps as well as having 3 additional switches for user trimming of Fuel in Lo, Mid and Hi throttle openings.
The ECU plugs directly into the bikes standard wiring harness and interfaces with all the standard engine sensors such as ECT (Engine Coolant Temperature), IAT (Intake Air Temperature), MAP (Manifold Absolute Pressure), TPS (Throttle Position Sensor), CPS (Crank Position Sensor) to adjust fuel and spark timing for optimum power delivery in all weather, altitude and load conditions.
Performance gains vary depending on Throttle and RPM points however typically gains are in Top End power and Bottom End throttle response is expected from the "Power" settings and a smoother more tractable or rideable power from the "Traction" settings.
We have done extensive work to include tune parameters which improve starting and almost eliminate the flameouts experienced with some EFI MX bikes. All of the development work is done for you! All that is left is for you to do is chose a setting that best suits your riding style or track conditions and ride!
The ECU is also fully programmable (Software not supplied) with parameters that are far more extensive than those found in any factory setting tools, such as Rev Limits, Throttle Enrichment & Decay time, Fuel timing, High Resolution Mapping, Dwell Time, Voltage Output and trim tables for cold starting, air intake temperature (IAT), Engine Coolant Temperature (ECT), Barometric Pressure, Battery voltage, etc...
In addition there is real time logging & graphing of many parameters (when combined with the ECU Software - not included)

Pre Programmed with 10 Performance Fuel & Ignition maps - all the work is done for you!
Instant Plug in Performance (replaces standard ECU with no mods to wiring required)
Fuel Trim Switches adjust fuel mapping by +12.5% to -10% in Lo , Mid and Hi throttle bands
Adjustments require only a screwdriver and integrated switches provide visual feedback.
Simple to install with mounting hardware supplied (where required)
V-Boost - Programmable Voltage Boost Circuit for maximizing Spark Energy across the entire rev range
Higher / Lower Rev Limit (where required)
Robust design is fully encapsulated and O-ring sealed
Diagnostic Flash codes - tests for sensor faults and flashes codes to OEM FI light
Race proven reliability
Re Programmable (Software and Interface hardware not Included)

vortexecu
$699.95
Year Model
Tokyomods 10 Map Ignition System
Tokyomods 10 map ignitions are manufactured by Vortex Performance - Inventors of the Dual Curve CDI lead the way again with X10 CDI the smallest and most Powerful Programmable CDI’s available. The X10 CDI allows the user to select up to 10 different power modes as easily as adjusting clickers on your suspension. With the advent of X10 Technology the X10 CDI can be programmed with up to 10 Hi Resolution 3D Maps. This give the user the option to select from a range of power settings and customize the engines power delivery to suit a variety of rider styles, different track conditions, fuel octane levels or engine configurations. As with the Dual Curve CDI the X10 CDI also allows the rider to change power modes dynamically via a Handlebar Switch. From Mild to Wild the possibilities are endless with the X10 CDI.

Key Features:
- Pre Programmed with10 selectable power settings via X10 Switch
- Instant Plug in Performance (replaces standard CDI with no mods to wiring required)
- Handlebar Switch for Dynamic Map Selection
- Small for weight saving and ease of mounting
- Rubber Mounting Boot + Brackets supplied (where required)
- V-Boost - Internal Voltage Boost Circuit for maximizing Spark Energy across the entire rev range
- Power Jet Control - Multiple On / Off (where applicable)
- Rev Limiter (where required)
- Re-Programmable
- Race Proven Reliability
$599.95
Year Model
Exhaust
Complete system with titanium PowerBomb header and midpipe; except where noted. Race proven reliability testing, high temp multi-layer packing material and exclusive repack maintenance indicator.

- The lightest full system available.
- Superior power and performance - horsepower improved throughout RPM range.
- Features exclusive proprietary Chamber Core and PowerBomb technology.
- Factory Forward Engineering centralizes mass, improves handling.
- Titanium or Carbon muffler with titanium end caps, midpipe and PowerBomb header.
- Made from premium quality American materials.
- Customize with performance tuning inserts and spark arrestor module.
- Meets AMA sound requirements on most models; inserts available for others.
FMF Factory 4.1 with MegaBomb
Color
Engine Parts
Tokyomods Camshafts

Motocross Billet Cam Set Requires the use of Tokyomods Hi Performance valve spring kit. We recommend the use of DLC coated buckets with this cam. This cam set it a full race profile maximizing bottom, mid and top power. $950.00 / set.

Year Model
Tokyomods Hi Performance Valve Spring Kit
Tokyomods Hi Performance Valve Spring Kits are designed to handle the extreme demands of hi performance racing camshafts. Kits include spring bases, valve springs, and titanium retainers.
$389.95
Year Model
Tokyomods Valves Titanium Valves
Tokyomods Titanium Racing Valves are one piece forged titanium, lighter then stock allowing valve train to rev with less effort resulting in increased horsepower. Titanium valves are also precision polished for flawless surface finish, and reduced carbon build up. Tokyomods titanium valves require the use of Tokyomods Copper Alloy valve seats.
Year / Price
Tokyomods Valve Guides
Tokyomods valve guides are superior to stock steel guides, they are lighter then stock, dissipate heat from the valve better, and reduce valve drag.
Year / Price
Tokyomods Valve Seats
Tokyomods Copper-Alloy Valve seats are a must when installing titanium valves. They not only dissipate heat from the valve better, they also reduce valve bounce extending valve life.
Year / Price
Tokyomods Hi-Compression Piston w/ DLC PIN
Year / Compression
Tokyomods Camchain Tensioner
The Tokyomods mechanical cam chain tensioner increases horsepower, extends cam chain and cam chain slider life. In addition to eliminating any possibility of the automatic tensioner failing, causing catastrophic engine failure. It can be installed in minutes with no special tools needed.
Price $99.95 FITS 02-15 YZ250F
Tokyomods Head Porting
Tokyomods Head porting is done with the expertise of over 20 years experience of 4 stroke engine building.
porting
$495.00
Tokyomods Hi Performance Clutch Springs
The excessive heat generated in your 4 stroke engine will break down stock chrome silicon clutch springs in a matter of minutes. As the clutch springs fade they loose their clamping power causing your clutch plates to slip and your horsepower to diminish. Tokyomods clutch springs are manufactured from the highest quality material to resist to high temperatures caused by today’s 4 stroke engines. Tokyomods clutch springs will increase your clutch engagement without a heavy lever feel. These are a must for all 4 stroke motocross bikes.
$59.95
YAMAHA
CV4 Radiator Hose Kits
Price: $85.47
Color
HOT CAMS

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HINSON