1. Spring (Throttle Valve)
2. Jet Needle Assembly
3. Throttle Valve (Slide)
4. Throttle Stop Screw (Idle Adjustment)
5. Air Screw
7. Pilot Jet
8. Main Nozzle (Needle Jet)
9. Main Jet
10. Valve Seat Assembly
12. Float Pin
13. Float Bowl
14. Drain Screw
||Float Bowl removed|
||Three Pin holes, and two on the other side must be clean|
||Your carb could have either of these types of main jets|
||Your Carb could have either of these types of needles|
|Slide Cut Away||2.0|
|Air Screw||1 1/8|
When cleaning the carb, pay particular
attention to #
7 pilot jet, and #8 Needle jet. Along the shaft of the needle
jet are 5 very small pin holes. Carb Cleaner won't even touch
these! Take one strand of elecrical wire and "ream"
out the 5 holes. Then cover one end of needle jet with your finger
and shoot contact cleaner in the other end. You should see 5
streams of contact cleaner come out of the 5 pin holes. Do the
same to the pilot jet.
|Graph showing interaction of Carb Components|
That's it for this month, shoot
me some E-mail if you have
specific YSR questions and I'll do my best to answer them as
time allows, and/or suggestions for topics in "Tech Tips!"
Remember this page is for you!