HELP TOPICS
Why you should flush the methanol
out engine with gas after racing.
This was a brand new float bowl
with the methanol left in it for two
weeks.
SETTING THE
COIL  AIR GAP
Using my special wrench
for adjusting the idle
mixture on a WF carb
SETTING
IGNITION TIMING
The in the hole method will work if
you want to take the head off
every time
Adjusting the
Valve Clearance
PVL FIRING POINT
Valve Adjusting at TDC.
Tip: Remove locktight from set
screw.
Follow cam MFG. Guide lines for
clearance
FINDING TDC
Finding TDC with the head
removed using a dead stop and
degree wheel. You can also set
the ignition timing with the degree
wheel.


Finding TCD with the head
installed  using a dead stop that
replaces the spark plug.  
GREAT TOOL FOR SETTING TIMING
WITH THE HEAD ON.
One tool works For Animal and
World Formula
$15.00
Setting the coil air gap using a
business card. I'd use two or three
to get the proper clearance.
PLASTIC FEELER GAUGES WORK
GREAT
SET AT .025"
Set FLOAT DROP first. Check the
adjustment with the carb right side up.
Bend the stop tab on the float. Located
behind the peg (blue arrow) Be careful
not to bend it too much  (ha ha)

ALSO NOW WORKS ON WORLD
FORMULA
Check the FLOAT LEVEL with the carb
upside down.
Set the float level by bending the tab
(painted red) Do not compress spring
in the needle.
Float Gauge   $15.00
Setting timing using the in the hole
method.
30*  =  .190"             34*  =  .243"
31*  =  .200"             35*  =  .256"
32*  =  .215"             36*  =  .269"
33*  +  .230"             37*  =  .285"
The ignition firing point for the
Older JR Racecar flywheel
The firing point for the PVL ignition
is just as the trailing edge of the
first magnet comes out from under
the second coil post.
This view is from the back side of
the flywheel.
Finding Top Dead Center   (TDC)

Install the degree wheel on the PTO side of the engine with the numbers facing the block.
Make sure it's centered   (doesn't wobble)
Make a pointer from a piece of stiff wire and attach it to one of the bolts on top of the engine.
Remove the spark plug and turn the engine so the piston is all the way up to the top of the
bore. Look through the spark plug hole and get the piston as close to the top as you can.
Loosen the bolt holding the degree wheel to the crankshaft and rotate the degree wheel so
the pointer is lined up with the TDC mark on the degree wheel.
Turn the engine clock wise about 60 degrees and install the dead stop[ in the spark plug
hole.
From this point on be careful not to turn the engine too fast and crash into the dead stop.
Turn the engine counterclockwise until the piston touches the dead stop. For explanation
purposes lets say it stops at 40 degrees. Turn the engine clockwise (the other direction)
until the piston hits the dead stop again. Lets say it stops at 20 degrees.  Loosen the bolt
holding the degree wheel and rotate the degree wheel to 30 degrees and re-tighten the bolt.
In a perfect world zero degrees will be exactly TDC. In reality you will have to repeat the
process to fine tune things to get exactly TDC.
When you have everything just right the degree wheel will stop at exactly 30 degrees when
you turn the engine in both directions

TDC       Top Dead Center
BTDC     Before Top Dead CEnter
ATDC     After Top Dead Center
BDC       Bottom Dead Center
BBDC    Before Bottom Dead Center
ABDC    After Bottom Dead Center