THE PLUG CHECK:
This is a very important part of any racing machine, and must be continued until perfect results are obtained. 
It may have to be repeated a number of times throughout the racing season due to track locations, race day temperatures and fuels available.
1)  Once engine started, check/adjust idle mixture screw; approx one/two turns out.
2)  Ride approx two/three laps to get plug colored.
3)  Prior to exiting track, "Chop" engine at load for "plug-check".
     To do a perfect plug-check, you MUST be pulling a load in 4th or 5th gear at Maximum RPM
     (a bit lower RPM is ok during break-in).
4)  DO NOT let the engine turn over en route back to the pit area, as this will foul up the "plug reading".
5)  Coast to the pit area and remove Spark Plug(s), checking color for mixture.

PLUG COLORS & THEIR MEANING:
A) White: Too Lean.  Increase Main Jet Size.
B) Light-Tan: Still Lean, But Close.  Increase Main Jet Size.
C) Darkish-Tan: OK!  Leave alone.
D) Dark-Black and/or Wet: Too Rich.  Drop Main Jet Size.
6)  Repeat "plug-chop" test until plug reading is correct.
7)  Once "Main Jet" size has been determined, you can now move to "cleaning up" the Mid-Range;  his is where      your engine may hesitate when turning on the throttle off a corner.  Though it must be noted, that in some cases your problem won't be the jetting, but the fitment of the megaphone exhaust pipe!
8) With your carb settings now dialed-in, we suggest approx 10/15 laps prior to maximum RPM.
9) Now that the required mileage has been covered, you can now "Ring it's Neck".
10) It must be noted, that the Ignition Timing may have to bebut take note altered in order to gain maximum     performance as to "where" and "how far" it was moved.

PRE-RACE CHECK LIST:
We hope that you've read our "BREAK-IN" sheets prior to this one, if not, please do so now, as it's most important, and should tell you what you'll need to know prior to setting off around the track.

Well, it's now race day, and the top race teams have arrived ready to blow you off.  Are you ready?  Is your bike ready?  Can you run up front with them?  Is your Ducati ready for the job at hand?  Let's hope it's yes to the first three, as we know the bike should be capable for the job, that is if you have it dialed in!
Historic Racing in the USA has some of the fastest Ducati singles known to historic racing (namely WCBR's!), and with your Ducati BY-WCBR, you should be able to tackle just about any grid presented.  But, before you go screaming off into the first turn, we highly suggest you read and carry out the following prior to every race meet.  We would suggest that you prepare your machine (or have us prepare it!) at home before you even leave for the races, thus having to do little, if no race-day work at all, thus making everything about your week-end more enjoyable.

1)  Make sure all Batteries are charged 100%, about 8-10 hour each.
2)  Don't forget to bring the Batteries with you!  All of them!  Sugg-3.
3)  Check/Top-up/Fill Motor Oil (Change after every race week-end).
4)  Check/Top up/Fill Fuel Tank (use only legal Racing or AVGAS 100/130).
5)  Check/Replace ALL Safety Wiring.  If your not sure, Wire it!
6)  Check/Adjust Rear Drive Chain.  Masterlink on correct?  Wheel Straight?
7)  Check Condition/Adjust as needed ALL Controls.
8)  Check/Adjust Tire Pressures - COLD.
9)  Check/Clean Engine Breather Catch-Tank.
10) Clean & Polish machine prior to leaving home and submitting for Tech.

It's now onto the dreaded Tech Inspection, where someone you may or may not know will point out everything they think is wrong with your machine.  Don't get too alarmed, as we've seen perfectly prepared machines get pointed out and sent away for some detail, or for nothing at all.  Just fix it!
'With Tech completed, you can now start-up and warm-up your machine, taking care that it's 80/90% warmed up prior to practice.  If practice is 20/30 minutes away, get dressed, then warm-up your machine, as it won't hurt one bit to be ahead of the game.  Just remember, just because your engine is warmed-up, your tires are still Cold!

PRACTICE COMPLETED:
With Practice completed, or in between practice sessions, we suggest you check/adjust/maintain the following items in order to insure a safe and trouble free race.
1)  Tires; Did they "scrub-in"?, overheat?, Run over something?
2)  Brakes; Where they up to par?  In some cases they'll need adjusting after they heat up due to drum expansion.
3)  Suspension; Set-up correctly?  Oil leaks?  Steering Damper adjusted?
4)  Engine; Oil leaks?  Carb Jetting?  Timing?  Did you do a Plug-Chop?


Now it's time to go racing....  Good Luck!
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