1. Judges have rights to inspect under hoods and curtains.
2. Only one pull per tractor (Thresheree Only), must be operated in a safe manner on and off the track at all times. (MUST SUPPLY YOUR OWN CLEVIS)
3. Anyone tampering with another tractor will be disqualified
4. Drive must remain on seat with one hand on steering wheel, no jumping or bouncing, but leaning will be allowed
5. No crawlers, tire chains or duals
6. Steel Wheels will pull last in class and one set of extension rims allowed
7. Rigid draw bar must not exceed 20 inches in height or be closer than 18 inches to center of axle (except pure stock)
8. Tractors must stop if flagged
9. Heavier tractors (88, 44, G, M, U Moline’s) can not pull under 5000
10. Tractors without wheelie bars will follow the track judges rules for height and must be kept under control.  If not you will be stopped and measurement will be taken at that point
11. Any tractor violating track boundaries or anything falls off tractor before pin is pulled you will be disqualified
12. Any driver 14 to 18 years old must have parent’s signature and Tractor Safety Class NO EXCEPTIONS
13. Engine will be controlled by throttle lever with positive stop only.  No vise grips, strings, wires or foot feet allowed
14. Tractors under 5000 limited to 15.5 tires.  5000 and up 18.4 tires size in all classes (except pure stock)
15. No using torque amplifiers, or shifts on the go
16. Add on weights not exceed 24” ahead of the front castings, or 24” behind center of rear axle, or beyond original platform.  Weights must not interfere with hooking the tractor, (pure stock tractors wheel weights only see pure stock rules on weights)
17. No rerod to extend 2" past out most wheel weight.

PURE STOCK

1. Engine: stock block, head, manifold, carb, no add on parts not in original parts book, no electric ignitions, (under cap Petronix ok) stock coil only, stock hp and rpms.  Tractors may be put on Dyno.
2. Tractors must have original, or as close to original size tires, rims, cut down steel is ok (No 18.4 tires)
3. Original hitches and drawbars, pulling eyes are allowed (no clevis with spacers, or bent-up drawbars) Hook point must be 13” -14” from end of PTO, or no closer than 30” from center of axle, allowances will be made on certain models
4. Tractors must have stock appearance
5. No cut or sharpened tires
6. Must have original air cleaner, if one used
7. No weight brackets, or non-original weights  (any wheel weights are allowed if placed on wheels and securely fastened)
8. ANY TRACTORS MAY BE DYNO’ED AND RPM LIMITS WILL BE ENFORCED!!!
9. Speed limit will be 4 mph

CLASSIC (Spring pull Only)

1. Engine; Stock block, head, manifold, carb, no add on parts not in original parts book, no electronic ignitions (under the cap Petronix ok) stock coil only
2. 10% over on horsepower and rpm will be allowed, ANY TRACTORS MAY BE DYNO’ED AND RPM LIMITS WILL BE ENFORCED!!!
3. Adjustable pulling style hitches will be allowed no higher than 20” and no closer than 18” to center of rear axle
4. Tractor must have stock appearance
5. No cut or sharpened tires
6. Hang-on weights will be allowed
7. Speed limit will be 4 mph

IMPROVED

1. Engine: stock block, tractor carb, original transmission, rear end, sheet metal etc.
2. No Front cut tires
3. Wheelie bars, kill switches and fenders recommended and encouraged.  If not applicable judges will rule height of front end and under control
4. 20% over on RPMs will be allowed, all tractors RPM limits enforced
5. No home built manifolds, or headers (o.e. replacement only)
6. Speed limit will be 4 MPH

MODIFIED

1. Engine: Must run stock block, transmission, rear end, sheet metal etc. NO 7 main Oliver blocks, or MM 800 jugs
2. Any cut tires allowed
3. Wheelie bars, kill switches and fenders are MANDATORY!!
4. Modified tractors can not pull in improved classes
5. RPM’s over 20% must have safety equipment. (Safety blanket, scatter shields, steel flywheel, side shields, etc.) Deadman throttle recommended
6. All side shields must be able to be removed, or opened upon officials request for inspection, or competitor will be DQ’s – Gas, LP, Diesel only  - No Alcohol
7. Must be naturally aspirated,  NO injection of any kind
8. Must have stock intake configuration. (If the tractor came with updraft carb stock an updraft style intake must be used.) Custom intakes and headers allowed.
9. Speed limit will be open (7 mph for Thresheree only)

RULES SUBJECT TO CHANGE WITHOUT PRIOR NOTICE OR POSTING
For more information contact: Dan Casey (920) 596-3827, Tom Schley (715) 851-0387