40 hp F40LA Yamaha

****If your jet does not measure like ours do not buy it because it will not work****

All jet sales are final.  
Our year, make model fitment guides can assist but are not 100% accurate due to numerous reasons. We have no control over jets once they leave us; some customers drill them out, test and tune etc.  See also additional things to check before ordering. If needing help send us a picture of the jets removed from the carb and also read identify that jet

Please take a moment right now to measure the jet prior to ordering.


*** If your jet does not measure like ours do not buy it because it will not work ****

TYPICAL JET SIZE:
Main Jet - 40*
Slow Jet - 108*
*Typical size only- verify jet size and compare dimensions to those listed before ordering. See Jet Finder for other jets available.

SLOW/PILOT JETS price each jet
keihin slow harley 35-xxx and N424-25B

OVERALL LENGTH = 15mm
THREAD DIAMETER = 4.5mm
GENUINE keihin jets - price each*   OEM EQUIVALENT keihin jets - price each
GENUINE Keihin jet 35 $6.35
 
OEM equivalent Keihin jet 35 $4.79
GENUINE Keihin jet 38 $6.35
 
OEM equivalent Keihin jet 38 $4.79
GENUINE Keihin jet 40 $6.35
 
OEM equivalent Keihin jet 40 $4.79
GENUINE Keihin jet 42 $6.35
 
OEM equivalent Keihin jet 42 $4.79
GENUINE Keihin jet 45 $6.35
 
OEM equivalent Keihin jet 45 $4.79
GENUINE Keihin jet 48 $6.35
 
OEM equivalent Keihin jet 48 $4.79
GENUINE Keihin jet 50 $6.35
 
OEM equivalent Keihin jet 50 $4.79
GENUINE Keihin jet 52 $6.35
 
OEM equivalent Keihin jet 52 $4.79
GENUINE Keihin jet 55 $6.35
 
OEM equivalent Keihin jet 55 $4.79
GENUINE Keihin jet 58 $6.35
 
OEM equivalent Keihin jet 58 $4.79
GENUINE Keihin jet 60 $6.35
 
OEM equivalent Keihin jet 60 $4.79
GENUINE Keihin jet 62 $6.35
 
OEM equivalent Keihin jet 62 $4.79
GENUINE Keihin jet 65 $6.35
 
OEM equivalent Keihin jet 65 $4.79
GENUINE Keihin jet 68 $6.35
 
OEM equivalent Keihin jet 68 $4.79
GENUINE Keihin jet 70 $6.35
 
OEM equivalent Keihin jet 70 $4.79
GENUINE Keihin jet 72 $6.35
 
OEM equivalent Keihin jet 72 $4.79
GENUINE Keihin jet 75 $6.35
 
OEM equivalent Keihin jet 75 $4.79
GENUINE Keihin jet 78 $6.35
   
GENUINE Keihin jet 80 $6.35
   
GENUINE Keihin jet 82 $6.35
   
GENUINE Keihin jet 85 $6.35
   
GENUINE Keihin jet 88 $6.35
   
GENUINE Keihin jet 90 $6.35
   
GENUINE Keihin jet 92 $6.35
   
GENUINE Keihin jet 95 $6.35
   
GENUINE Keihin jet 98 $6.35
   


MAIN JETS price each jet
JETSRUS.COM Keihin vintage main jet 3D



OVERALL LENGTH = 8.0 mm
SHAFT DIAMETER = 6.8 mm
THREAD DIAMETER = 7.9 mm
Price each *

Jet vintage 75 $27.99
Keihin jet 100 $12.99
Keihin jet 108 $12.99
 

 

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.