Name: 42.5MM TYPE-2 THROTTLE BODY UPGRADE SET (FOR B-TYPE INJECTOR)
Brand: YUMINASHI
SKU: 16410-K26-425B
Price: 96.86 GBP
Availability: InStock

Description

● 42.5MM TYPE-2 THROTTLE BODY UPGRADE SET (FOR B-TYPE INJECTOR) (16410-K26-425B)

● The YUMINASHI TYPE-2 Throttle body set is the very compact version from the CBR250R/CBR300R throttle body which is perfect for bikes and scooters which are limited in space...

● The benefit is also that this throttle body accepts your stock B-Type injector because of the special B-type injector joint (LINK) which makes it easy to install since you don't need to use a wire loom to connect it to your stock wire harness.

※ The stock CBR250R and CBR300R have a 260cc/min injector installed, and if you need a larger 305cc/min (LINK) or even a 450cc/min (LINK) KEIHIN B-TYPE injector, then we have them available.
※ If you want to use the stock CBR250R/CBR300R Denso injector type (LINK), then this is perfectly possible, you only need to order optional the injector joint for the Denso injectors then (LINK).
※ If you need larger DENSO injectors, then we have them available at the page with this LINK.

● The stainless steel throttle cable bracket keeps everything very low and compact, and doesn't push your throttle cable high up as it does with the stock CBR250R/CBR300R throttle cable bracket.

※ With the stainless steel throttle cable bracket you can install only 1 of the 2 throttle cables, which isn't really an issue since it won't give you any technical problem or safety issues.

● This throttle body accepts all the 125cc / 150cc / 250cc / 300cc / 350cc large sensor blocks with the 5-pin connector below the sensor block, and not with a 90° angle such as with the Honda scooter models.

● The venturi is polished and machined in to a stack to create an optimized velocity.

● This throttle body accept also the large Yuminashi TP/IAT/MAP Sensor Block for INNOVA125i - MSX/GROM - Z125 Monkey - C125 Super Cub - CT125 Hunter Cub - etc (LINK).
※ We also have the size 39.4mm (LINK) and 40.5mm (LINK) available if 42.5mm is too large for your build.

● This throttle body upgrade set is perfect to be installed with a high performance camshaft and can be used in combination with the stock air filter box or a higher flowing air filter type (LINK).

● The throttle body size of 42.5mm is basically based on the throttle body size from the CRF250R, which has a bore diameter from 79mm and has stock from the factory a 44mm throttle body installed.
The CRF250R is cranking 39.0 hp at 12,900 rpm at the Dyno with 18.8 pound-feet of torque at 9,500 rpm at the rear wheel, which is a serious step up compared to the CBR250R engine which delivers 23.7 hp (17.7 kW) @ 9,900 rpm (rear wheel) 21.9 hp (16.3 kW) @ 8,500 rpm 26.7 hp (19.9 kW) @ 8,500 rpm.

Based on the results, we can see and conclude that the 44mm throttle body used by Honda for the 79mm bore is a very well balanced bore to throttle body ratio to produce horsepower, and if we keep the same bore/throttle body ratio (Ratio 1,795) then the throttle body result for the stock bore is 76mm / 1,795= 42.34mm.
※ If you are doing a CBR250/300 engine swap in a MSX/GROM or Monkey, then we have the 78mm piston available (LINK) and also the 79mm bore CRF250R piston size (LINK) for the 250 and 300 engines.

※ The Recommended Retail Price (RRP) above is based on the RRP of the Yuminashi 42.5mm throttle body set in the United States, which retails without sensors for between $165 and $300, so if you are a business owner then considering selling this Throttle Body Upgrade Kit could not just be an asset for your customers, but also for your company...
※ You can find the Business To Business (B2B) discounts below on this product page.

● THIS 42.5MM TYPE-1 PGM-FI THROTTLE BODY UPGRADE SET (16410-K26-425B) INCLUDES:

1 X 42.5MM KEIHIN/YUMINASHI THROTTLE BODY
2 X SCREW, TORX, 5X5.7 (16081-KYJ-901)
1 X SCREW, TORX, 5X17 (16082-KYJ-901)
1 X STAY, HARNESS CLAMPER (16196-HP6-A01)
1 X SCREW, PAN, 5X10 (93500-05010-1H)
2 X BOLT, FLANGE 5X20 (16080-KPH-701)
1 X STAY/BRACKET, THROTTLE CABLE (16169-MFR-671)
2 X SCREW-WASHER, 5X12 (93892-05012-18)
1 X PLATE, IDLE AIR CONTROL VALVE (16432-HP5-601)
2 X SCREW, TORX (16433-HN8-A61)
1 X O-RING, 17.8X1.9 (16435-HN8-A61)

● OPTIONS AVAILABLE:

MANUAL IACV VALVE (LINK)
ORIGINAL 5-PIN CONNECTOR IACV VALVE (LINK)
ORIGINAL 250/300 INJECTOR JOINT FOR DENSO INJECTOR (LINK)
ORIGINAL 250/300 SENSOR BLOCK (LINK)
※ CAN ALSO BE USED FOR FORZA NSS250 / FORZA NSS300 / FORZA NSS350 SCOOTERS
B-TYPE INJECTOR JOINT TO INSTALL THE B-TYPE INJECTORS (LINK)
YUMINASHI SENSOR BLOCK FOR INNOVA125i - MSX/GROM125 - Z125 MONKEY - C125 SUPER CUB - CT125 HUNTER CUB - PCX125/150 SCOOTERS etc (LINK)
STAINLESS STEEL BRACKET, FLAT-TYPE (LINK)

SMART SHOPPER TIP:

※ BUYING MORE THAN 1 PIECE CUT THE TRANSPORT PRICE, AND YOU RECEIVE A 10% DISCOUNT ON TOP OF IT!

※ B2B:

Purchases between 2 & 4 pieces of this product will receive a 10% DISCOUNT
Purchases between 5 & 9 pieces of this product will receive a 15% DISCOUNT
Purchases between 10 & 19 pieces of this product will receive a 20% DISCOUNT
Purchases between 20 & more pieces of this product will receive a 25% DISCOUNT
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