Round Bottom 
Garden
Tractor Pullers
CLASSES:
CLASS
E 900LB STOCK ALTERED 0-10HP
CLASS
F 950LB STOCK ALTERED 0-12HP
CLASS
G 1000LB STOCK ALTERED 0-12HP
CLASS
H 1050LB STOCK ALTERED 0-16HP
CLASS
I 1100LB STOCK ALTERED 0-16HP
CLASS
J 1100LB STOCK ALTERED 0-20HP
CLASS
K 1150LB STOCK ALTERED 0-20HP
STOCK
ALTERED ENGINE SPECIFICATIONS:
-
MAXIMUM
.030 OVERBORE ALL CLASSES
-
STOCK
STROKE ALL CLASSES NO STROKER KITS
-
MAXIMUM
VALVE SIZE 1.38
-
VALVE
LIFT MAXIMUM .330
-
CARBURETOR
1" DIAMETER VENTURI MAX ALL CLASSES IT MUST BE ORIGINAL TYPE
-
GASOLINE
.750 GRAVITY ALL CLASSES
-
LAWN
MOWER TYPE GASOLINE ENGINES ONLY
-
STOCK
OR STEEL FLYWHEELS MUST BE COVERED 360 DEGREES WITH 1/8" STEEL OR
3/16" ALUMINUM
-
PUMP
GAS ONLY, NO PRESSURIZED TANKS OR NITROUS OXIDE, NO ALCOHOL, NO FUEL
INJECTION, NO ELECTRIC FUEL PUMPS
-
SINGLE
CYLINDER FLAT HEAD ENGINES ONLY NO OVERHEAD VALVES
-
1200
LB CLASS IS A SINGLE OR TWIN CYLINDER CLASS AND OVERHEAD VALVES ARE
PERMITTED ON TWINS
-
NO
RAM TUBES, OR HOMEMADE HEADS. HEAD PLATES AND TIE DOWNS ON HEADS ARE
OPTIONAL.
-
NO
DIRECT THROTTLE LINKAGE TO CARB, MUST RUN THROUGH GOVERNOR ARM, ALL TRACTORS
MUST HAVE WORKING AIR CLEANER ON CARB WITH ONE FILTER IN PLACE.
-
NATURALLY
ASPIRATED ENGINE, NO FORCED AIR OF ANY KIND.
TRACTOR
REGULATIONS:
ALL CLUB MEMBERS
MUST HAVE A TRACTOR NUMBER AND NUMBER DISPLAYED ON TRACTOR
MUST HAVE
WORKABLE BRAKES
MUST HAVE
WORKABLE REVERSE GEAR
MUST HAVE REAR
FENDER, SHALL COVER FRONT PORTION OF TIRE AND TO CENTER LINE OF REAR AXLE
FACTORY SEAT OR
EQUIVALENT
DEAD MAN THROTTLE
IS MANDATORY ON ALL STOCK ALTERED CLASSES
ALL TRACTORS ARE
TO HAVE STOCK APPEARANCE AND MUST HAVE HOOD AND GRILL
ANY PORTION OF
TRACTOR IS NOT TO EXCEED 24" FROM CENTER OF REAR AXLE TO REAR END. NO
PORTION OF FRONT OF TRACTOR, BOOM, OR WEIGHTS ARE TO EXCEED 7’ FROM CENTER
OF REAR AXLE. WIDTH 10" FROM REAR TIRE TO A MAXIMUM OF 60" WIDE.
BACK PORTION OF HITCH IS NOT TO EXCEED 18" FROM CENTER OF REAR AXLE.
MAXIMUM WHEEL BASE 70" CENTER TO CENTER.
RUBBER TIRES ONLY
(NO DUALS, STUDS, CHAINS OR STEEL WHEELS)
CUT TIRES ARE
ALLOWED IN STOCK ALTERED CLASSES, 16hp AND UP.
MAXIMUM TIRE SIZE
26X12X12
IF EXHAUST IS
MODIFIED IT MUST BE IN AN UPRIGHT POSITION AND PAST HOOD
TRACTORS MUST
HAVE ALL SHIELDS AND GUARDS OVER CLUTCHES, DRIVE BELTS OR DRIVE TRAIN
ALL TRACTORS MUST
HAVE A SAFETY DEVICE TO PREVENT TURNOVERS. THIS DEVICE IS TO HAVE WHEELS OR
SKID PLATE. WHEELS ARE TO BE AT LEAST 1" WIDE SKID PLATES MUST BE AT LEAST
3X3" AT GROUND CONTACT POINT. WHEELS OR SKIDS MUST BE NO LESS THAN
5" BEHIND THE REAR TIRES AND NOT MORE THAN 5" ABOVE THE GROUND, IT
MUST SUPPORT WEIGHT OF TRACTOR AND DRIVER.
HITCHES MUST BE RIGID
AND HAVE 1 ½ " HOLE OR CLEVIS FOR HOOKUP, ½" MINIMUM TO ¾"
MAXIMUM FROM BACK EDGE OF HOLE TO EDGE OF HITCH. HITCH HEIGHT MAXIMUM 12"
ON DIRT 10" ON ASPHALT.
MUST HAVE HELMET
IN STOCK ALTERED CLASSES MANDATORY
KILL SWITCHES ARE
MANDATORY FOR ALL CLASSES
TWO WHEEL DRIVE
TRACTORS ONLY
ALL ENGINES MUST
HAVE A SCATTER SHIELD OPPOSITE THE CAM SIDE OF THE MOTOR. IT MUST BE MADE OF
1/8" STEEL OR 3/16" ALUMINUM. MUST COVER FULL HEIGHT AND WIDTH OF
BLOCK AND BE ATTACHED IN A SECURE MANNER TO FRAME AND HEAD OR HEAD PLATE.
ALL FINAL DRIVE
BELTS MUST BE COVERED TOP 180 DEGREES AND ALL CLUTCH ASSEMBLIES MUST BE
COVERED 360 DEGREES WITH 1/8" STEEL OR 3/16" ALUMINUM.
**
DEPENDING UPON TIME PERMITTED FOR EVENTS, THERE MAY BE A LIMIT TO THE NUMBER OF
TRACTORS PER CLASS OR A LIMITED NUMBER OF CLASSES


