Why does Honda recomend smaller jets for the newer Honda XR-------Main Jet for 96/97=158 to 162
Main jet after 97 =142
the same goes for the slow jet
Slow jet for 96/97=60/62
Slow jet after 97 =52
Can you jet the 98 and after with the larger jets as in the earlier models?
I have the XR400r 2001 with the stock jets of-main=142
and slow jet =52 and it is lean on on all circuits. my field
elevation is 840 ft above sea level
Ride year round but mainly in 80 to 90 degree weather
moderate riding fire service roads north GA mountains and local pay places to ride
the only mod is a k&N air filter
Engine, carb, exhaust is stock according to my Honda manual
The engine is hard to start cold but fine when warmed up
The spk plug is white
Runs great when warm except for a little hesitation on a quick throttle opening
I have not checked the valve lash yet
The engine idles great with no engine noise
Do not know the needle size or position, Just bought this bike, excellent shape with all service records.
Can you recommend jet sizes and or any thing else i need to do for the carb.
Carb numbers on body=PD, KIC, the letter B in a square box, 004
Thanks, I hope I gave you what you need.
moptop121 in Hampton Ga