| Category |
Stock |
Improved Stock
|
Hot Singles
|
Hot Twins
|
Stock Altered |
Pro Single
|
Pro Twin
|
Pro Diesel
|
Outlaw
|
| |
|
|
|
|
|
|
|
|
See continued tractor spec.'s page
|
Kill switch
|
Optional |
Yes Ign/pump
|
Yes Ign/pump
|
yes /ign/pump
|
yes/ign/pump. |
yes/ign/pump. |
yes/ign/pump. |
yes fuel/air
|
|
Wheelie Bars
|
Recommended |
yes |
yes |
yes |
yes |
yes |
yes
|
yes |
|
| Brakes |
Yes |
yes |
yes |
yes |
yes |
yes |
yes
|
yes |
|
Reverse Gear
|
Yes |
yes |
no |
no |
no |
no |
no |
no |
|
Rear End Type
|
Factory |
Garden Tractor
|
Garden Tractor
|
Garden Tractor
|
Garden Tractor
|
Garden Tractor
|
Garden Tractor
|
any |
|
| Frames |
Stock |
stock |
stock |
stock |
stock |
stock |
stock
|
any |
|
| Hood/Fenders |
Yes |
yes |
yes |
yes |
yes |
yes |
yes
|
yes |
|
Shields
|
Yes stock
|
yes clutch
|
yes/clutch
|
yes/clutch |
yes/NQS spec.
|
yes/NQS spec.
|
yes/NQS spec.
|
yes (*)
|
|
| Wheels |
Stock |
alum/steel |
alum/steel |
alum/steel |
alum/steel |
alum/steel |
alum/steel |
alum/steel |
|
Tire Size
|
23x10.5x12 |
23x10.5x12 |
23x10.5x12 |
23x10.5x12 |
26x12x12 |
26x12x12 |
26x12x12 |
26x12x12 |
|
Tire Type
|
Ag/Turf |
Ag/cuts ok
|
Ag/cuts ok
|
Ag/cuts ok
|
Ag/chevrons |
Ag/chevron |
Ag/chevron |
Ag/chevron
|
|
Wheel Base
|
Stock
|
56" rear may not be moved
|
56" rear may not be moved
|
56" rear may not be moved
|
52" |
56" |
56" |
72" |
|
Hitch height
|
12" max
|
12' max
|
12"max |
12"max
|
13" max
|
13" |
13" |
13" |
|
| Block |
Stock |
stock OEM
|
stock OEM
|
stock OEM
|
stock apear. no after market
|
stock apear. no after market
|
stock apear. no after market
|
Ag or Industrial
|
|
| Bore |
+.030 |
+.030
|
+.030
|
+.030 52cu. max
|
3.780 36.5 cu.
|
50.5cu. |
52 cu.
|
100cu. |
|
| Piston |
Stock |
stock OEM
|
any |
any |
any |
any |
any |
any |
|
| Crank |
Stock |
stock |
stock stroke
|
stock stroke
|
3.25 |
any |
any |
any |
|
| Cam |
Stock |
stock |
.330 max valve lift
|
.275 max. valve lift
|
.330 max
|
any |
any
|
any |
|
| Valves |
Stock |
stock |
1.380 |
any
|
1.380 |
any |
any |
any |
|
| Head(s) |
Stock |
stock |
stock apear.
|
stock apear.
|
billet or cast
|
billet |
stock apear.
|
stock apear.
|
|
Head Strap
|
N/A
|
no |
no |
no |
yes |
yes |
no |
yes 3/16" cable
|
|
| Carburetor |
Stock W/AC
|
stock |
1.00" stock apear.
|
1.00" stock apear
|
1.00" re-cast
|
1.200"re-cast
|
1.200"re-cast |
N/A |
|
Carb. Gasket
|
Stock |
stock |
any |
any |
any |
any |
any |
N/A |
|
Carb. Spacer
|
No |
no |
no |
no |
1" max.
|
any |
3" spacer
|
N/A |
|
Fuel Pump
|
Stock |
mech/vac/elec.* |
mech/vac/elec. |
mech/vac/elec. |
any |
any |
any |
any |
|
| Throttle |
Stock |
stock or dead man
|
dead man
|
dead man
|
dead man
|
dead man
|
dead man
|
dead man
|
|
| Ignition |
Stock |
stock |
stk/chevy pts. ok
|
stock |
any |
any |
any |
N/A |
|
| Exhaust |
Stock or Pipe 90 degree vert.
|
90 degree vert.
|
90 degree vert.
|
90degree vert.
|
90 degree vert.
|
90 degree vert.
|
90 degree vert.
|
90 degree vert.
|
|
| Flywheel |
stock |
stock or steel
|
stock or steel
|
stock or steel
|
steel |
steel |
steel |
steel |
|
Ext. Crank Weight
|
No |
no |
yes |
yes |
yes |
yes |
yes |
yes |
|
Engine RPM'S
|
3,600 |
4,000 |
4,000 |
4,000 |
unlimited |
unlimited |
unlimited |
unlimited |
|
| Fuel |
pump gas
|
pump or race gas
|
pump or race gas
|
pump or race gas
|
C-12 or M-1
|
C-12 or M-1
|
C-12 or M-1
|
C-12 or M-1
|
|