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42.5MM TYPE-1 THROTTLE BODY UPGRADE SET (CBR250/300R - CB250/300F/R - CRF250/300L/M...)

YUMINASHI / KEIHIN 42.5MM TYPE-1 THROTTLE BODY UPGRADE SET (CB250/300 F/R - CB250/300R - CBR250/300R - CRF250/300L/M - CMX250 / CMX300 REBEL...) (16410-KYJ-942)

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  • YUMINASHI / KEIHIN 42.5MM TYPE-1 THROTTLE BODY UPGRADE SET (CB250/300 F/R - CB250/300R - CBR250/300R - CRF250/300L/M - CMX250 / CMX300 REBEL...) (16410-KYJ-942)
  • YUMINASHI / KEIHIN 42.5MM TYPE-1 THROTTLE BODY UPGRADE SET (CB250/300 F/R - CB250/300R - CBR250/300R - CRF250/300L/M - CMX250 / CMX300 REBEL...) (16410-KYJ-942)
  • YUMINASHI / KEIHIN 42.5MM TYPE-1 THROTTLE BODY UPGRADE SET (CB250/300 F/R - CB250/300R - CBR250/300R - CRF250/300L/M - CMX250 / CMX300 REBEL...) (16410-KYJ-942)
  • YUMINASHI / KEIHIN 42.5MM TYPE-1 THROTTLE BODY UPGRADE SET (CB250/300 F/R - CB250/300R - CBR250/300R - CRF250/300L/M - CMX250 / CMX300 REBEL...) (16410-KYJ-942)
KEIHIN / YUMINASHI
RRP: ฿10,070.00
฿3,065.00 (You save ฿7,005.00)
SKU:
16410-KYJ-942
Weight:
500.00 Grams
Availability:
Fast moving item, ships the next day (Except on Sundays & Thai public holidays)...
Shipping:
Calculated at checkout
Minimum Purchase:
1 unit(s)
Buy in bulk and save

 Product Description

buying-2-discount-300pxl-.png● 42.5MM TYPE-1 PGM-FI THROTTLE BODY UPGRADE SET (16410-KYJ-942)

● Yuminashi/Keihin 42.5mm Type-1 throttle body upgrade set for the 250 and 300 engines, which will upgrade the CRF250L throttle body from 37mm to 42.5mm, and the CBR250R/CBR300R throttle body from 39mm to 42.5mm...

● This throttle body accepts all your stock 250 and 300 sensors, the venturi is polished and machined in to a stack to create an optimized velocity. 

● This throttle body accept also the Yuminashi TP/IAT/MAP Sensor Block for INNOVA125i - MSX/GROM - Z125 Monkey - C125 Super Cub - CT125 Hunter Cub - etc (LINK).
※ We have also the 42.5mm Type-2 version with a flat, horizontal bracket for the throttle cable, which is more convenient to be used in these compact bikes as pointed out above, perfect also for a CBR250/300R engine swap in these bikes...
※ 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.
※ 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. 
※ If you need larger injectors, then we have them available at the page with this LINK.


● THIS 42.5MM TYPE-1 PGM-FI THROTTLE BODY UPGRADE SET (16410-KYJ-942) 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 
  • STAINLESS STEEL BRACKET, FLAT-TYPE (LINK)


● THIS 42.5MM PGM-FI THROTTLE BODY UPGRADE SET IS THE CORRECT SET TO BE INSTALLED ON:

HONDA:

  • CB250F (2015- )
  • CB300F (2013- )
  • CB300R (2017- )
  • CBR250R (2011- )
  • CBR300R (2014- )
  • CMX250 REBEL / ABS (2017- )
  • CMX300 REBEL (2017- )
  • CRF250L / CRF250M (2013 - 2017)
  • CRF250L (2017 - 2019)
  • CRF250L / CRF250L RALLY (2017- )
  • CRF300L / CRF300L RALLY (2021- )

budget-logo-2.png 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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