I just picked up a 1983 Honda XR350 that is stock and in mint condition. I changed the oil and put fresh 91 octane fuel in it and rode it. I noticed that mid to top-end that there is a bit of hesitation. Also the motor seemed to run too hot. I knew that it was time to clean the carbs. I removed them stripped them down and cleaned them very carefully, reassembled set everything back to stock. The bike runs prefectly now and has a nice smooth throttle repsonse in all positions, but it still runs too hot!!! I pulled the spark plug to analyze the color and its just prefectly clean no real color to it. That would indicate that its running a bit lean.
Can anyone recommend how to properly jet this bike based on the following factors? Thanks for your support.
I live in the California Central Valley area
0 to 3000 ft.
Temp 60 to 90 F
Its has dual carbs
- Primary Carb Main Jet is a #112
- Secondary Carb Main Jet is a #105
- Primary Carb Slow Jet is a #45
Air screw opening = 1-1/4
Oil type and weight used:
Castrol GTX 20/50 (non synthetic)
Spark Plug information:
Standard NGK DPR8EA-9
Edited by hitech515, 26 June 2010 - 06:13 PM.