HONDA CRF50

Instructions for ordering: check jet dimensions. If the jet in the carb does not dimensionally measure like ours, then it is not correct. Do not buy it! It will not work. Try here: identify that jet.

Our year, make, and model fitment guides list jets for popular factory and aftermarket carbs, but due to numerous reasons there is not a way to make them 100% accurate. Therefore, do not rely on the fitment guides.  See also additional things to check before ordering.If you need help send us a picture of the jets removed from the carb. identify that jet can help as well. 
Please take a moment right now to measure the jet prior to ordering. Taking a bit of time now will help avoid issues later.

We have no control over jets once they leave us. Some people drill them out, test and tune, etc. To protect everyone from getting used and abused jets, jet sales are final. No exchanges or returns.

Help us help you! Please measure the jets before ordering and email with any questions. It is easier to check now then potentially have jets arrive that do not match!

*** All jet sales are final. No returns or exchanges.**** 

TYPICAL JET SIZE:
Main Jet - *
Slow Jet - *
*Typical size only- verify jet size and compare dimensions to those listed before ordering. See Jet Finder for other jets available.

SLOW JETS price per each jet
Keihin slow 99124-076 3K

jet keihin 99124-076
OVERALL LENGTH = 28 mm
HEAD DIAMETER= 5.5 mm
THREAD DIAMETER = 3.4 mm
TIP DIAMETER = 2.0 mm
Price each

Keihin jet 32 $12.74

 

Keihin jet 38 $12.74

 

Keihin jet 40 $12.74

 

Keihin jet 42 $12.74

 

Keihin jet 45 $12.74

 

Keihin jet 48 $12.74

 

 

keihin 3G 99103
99103 3G Keihin jets- price each


OVERALL LENGTH = 26.0 mm
HEAD DIAMETER = 4.5 mm
DIAMETER OF THREAD = 3.4 mm
TIP DIAMETER = 2.0 mm

Keihin jet 35 $12.99

 

Keihin jet 38 $12.99

 

Keihin jet 40 $12.99

 




MAIN JETS price per each jet
keihin 3C 99101-187
99101-187 3C Keihin jets- price each *


OVERALL LENGTH = 8.5 mm
SHAFT DIAMETER = 4.8 mm
DIAMETER OF THREAD = 5.9 mm

Keihin jet 55 $7.49

 

Keihin jet 58 $7.49

 

Keihin jet 60 $7.49

 

Keihin jet 62 $7.49

 

Keihin jet 65 $7.49

 

Keihin jet 68 $7.49

 

Keihin jet 70 $7.49

 

Keihin jet 72 $7.49

 

Keihin jet 75 $7.49

 

Keihin jet 78 $7.49

 

Keihin jet 80 $7.49

 

Keihin jet 85 $7.49

 

Keihin jet 90 $7.49

 


D Shaped fuel mixture screw adjustment bit

These fit mixture screws that are 4.5mm diameter
Jetsrus D bit

Motion pro D bit

carb bowl screws
CARB BOWL SCREW - Sold each, modify cart for desired quantity *
Stainless steel allen head screw for carb bowl.
Length dimension is the shaft length of the fastener not including the length of the head.
Example: M4 x 10 (10 mm shaft length)
Sold each carb bowl screw M4 x 10 (0.39") $1.49
Sold each carb bowl screw M4 x 12 (0.47") $1.55
Sold each carb bowl screw M4 x 14 (0.55") $1.59
Sold each carb bowl screw M5 x 16 (0.62") $1.61
Sold each carb bowl screw M5 x 20 (0.78") $1.63

NEEDLE SHIM WASHERS
Stainless washers.
These are not a precision part, they simply raise the needle.

Needle shim most Mikuni 2.7mm ID x 6.30mm OD 0125A2M2.7 JRU-8027A 10 pieces

Needle shim most Keihin 3.2mm ID x 7mm OD 0125A2M3.2 JRU-8032 10 pieces

Needle shim 3.7mm ID x 7.9mm OD 0125A2M3.7 JRU-8037B 10 pieces

wrench_hex_carb_bowl
HEX wrench for carb bowl screws
hex wrench
Metric hex wrench short arm for screws $0.87
Extra short arm ball end for tight fitting areas 19109

TORX wrench for carb bowl screws
Extra short arm for tight fitting areas TORX 19110- note our screws are hex, this item is placed here as some carbs use torx screws.