3to 11hp 4-cycle l-head engines - Small Engine Suppliers
3to 11hp 4-cycle l-head engines - Small Engine Suppliers
3to 11hp 4-cycle l-head engines - Small Engine Suppliers
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ENGINE SPECIFICATIONS STANDARD POINT IGNITION<br />
All models have point setting of .020" (.508 mm), spark plug gap of .030" (.762 mm), valve seat angle of 46 0 .<br />
All dimensions are in inches.<br />
SPECIFICATIONS<br />
LAV50, TVS120,<br />
HS50<br />
TNT 120<br />
ECV120<br />
V50, VH50,<br />
TVM125, H50, HH50<br />
V60, VH60,<br />
TVM140, H60, HH60<br />
V70, VH70,<br />
VM70,<br />
H70, HH70<br />
U.S.<br />
Metric<br />
mm<br />
U.S.<br />
Metric<br />
mm<br />
U.S.<br />
Metric<br />
mm<br />
U.S.<br />
Metric<br />
mm<br />
U.S.<br />
Metric<br />
mm<br />
Displacement<br />
(in³) (cc) 12.04<br />
197.34<br />
12.04<br />
197.34<br />
12.18<br />
199.63<br />
13.53<br />
221.76<br />
15.04<br />
246.51<br />
Stroke<br />
1.938<br />
49.23<br />
1.938<br />
49.23<br />
2.25<br />
57.15<br />
2.<br />
5 63.<br />
5 2.532<br />
64.31<br />
Bore<br />
2.8120<br />
2.8130<br />
71.425<br />
71.450<br />
2.8120<br />
2.8130<br />
71.425<br />
71.450<br />
2.6250<br />
2.6260<br />
66.675<br />
66.700<br />
2.6250<br />
2.6260<br />
66.675<br />
66.700<br />
2.7500<br />
2.7510<br />
69.85<br />
69.88<br />
Timing Dim.<br />
B.T.D.C.<br />
0.035<br />
. 889<br />
0.035<br />
. 889<br />
0.080<br />
2.032<br />
0.080<br />
2.032<br />
0.080<br />
2.032<br />
Valve Clearance<br />
.004<br />
.010<br />
.102<br />
.254<br />
.004<br />
.010<br />
.102<br />
.254<br />
.008<br />
.012<br />
.203<br />
.305<br />
.008<br />
.012<br />
.203<br />
.305<br />
.008<br />
.012<br />
.203<br />
.305<br />
Valve Seat Width<br />
.035<br />
.045<br />
.889<br />
1.143<br />
.035<br />
.045<br />
.889<br />
1.143<br />
.042<br />
.052<br />
1.067<br />
1.321<br />
.042<br />
.052<br />
1.067<br />
1.321<br />
.042<br />
.052<br />
1.067<br />
1.321<br />
Valve Guide<br />
Oversize Dim.<br />
.2807<br />
.2817<br />
7.130<br />
7.155<br />
.2807<br />
.2817<br />
7.130<br />
7.155<br />
.3432<br />
.3442<br />
8.717<br />
8.743<br />
.3432<br />
.3442<br />
8.717<br />
8.743<br />
.3432<br />
.3442<br />
8.717<br />
8.743<br />
Crankshaft End<br />
Play<br />
.005<br />
.027<br />
.127<br />
.686<br />
.005<br />
.027<br />
.127<br />
.027<br />
.005<br />
.027<br />
note F<br />
.127<br />
.027<br />
.005<br />
.027<br />
note F<br />
.127<br />
.027<br />
.005<br />
.027<br />
note F<br />
.127<br />
.027<br />
Crankpin Journal<br />
Dia.<br />
.9995<br />
1.0000<br />
25.387<br />
25.400<br />
.9995<br />
1.0000<br />
25.387<br />
25.400<br />
1.0615<br />
1.0620<br />
26.962<br />
26.975<br />
1.0615<br />
1.0620<br />
26.962<br />
26.975<br />
1.1860<br />
1.1865<br />
30.124<br />
30.137<br />
Crankshaft Mag.<br />
Main Brg. Dia.<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
Crankshaft P.T.O.<br />
Main Brg. Dia.<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
.9985<br />
.9990<br />
25.362<br />
25.375<br />
Camshaft Bearing<br />
.4975<br />
.4980<br />
12.637<br />
12.649<br />
.4975<br />
.4980<br />
12.637<br />
12.649<br />
.6230<br />
.6235<br />
15.824<br />
15.837<br />
.6230<br />
.6235<br />
15.824<br />
15.837<br />
.6230<br />
.6235<br />
15.824<br />
15.837<br />
Conn. Rod Dia.<br />
Crank Brg.<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
1.0630<br />
1.0635<br />
27.000<br />
27.013<br />
1.0630<br />
1.0635<br />
27.000<br />
27.013<br />
1.1880<br />
1.1885<br />
30.175<br />
30.188<br />
Piston Diameter<br />
Bottom Of Skirt<br />
2.8072<br />
2.8080<br />
71.303<br />
71.323<br />
2.8072<br />
2.8080<br />
71.303<br />
71.323<br />
2.6210<br />
2.6215<br />
66.573<br />
66.586<br />
2.6210<br />
2.6215<br />
66.573<br />
2.6215<br />
2.7450<br />
2.7455<br />
69.723<br />
69.736<br />
Ring Groove<br />
Side Clearance<br />
1st & 2nd Comp.<br />
Ring Groove<br />
Side Clearance<br />
Bottom Oil<br />
.002<br />
.005<br />
.001<br />
.004<br />
.051<br />
.127<br />
.025<br />
.102<br />
.002<br />
.005<br />
.001<br />
.004<br />
.051<br />
.127<br />
.025<br />
.102<br />
.002<br />
.004<br />
.002<br />
.004<br />
.051<br />
.102<br />
.051<br />
.102<br />
.002<br />
.004<br />
.002<br />
.004<br />
.051<br />
.102<br />
.051<br />
.102<br />
.002<br />
.003<br />
.001<br />
.003<br />
.051<br />
.076<br />
.025<br />
.076<br />
Piston Skirt<br />
Clearance<br />
.0040<br />
.0058<br />
.102<br />
.147<br />
.0040<br />
.0058<br />
.102<br />
.147<br />
.0035<br />
.0050<br />
note D<br />
.089<br />
.127<br />
.0035<br />
.0050<br />
note D<br />
.089<br />
.127<br />
.0045<br />
.0060<br />
note E<br />
.114<br />
.152<br />
Ring End Gap<br />
.007<br />
.017<br />
.178<br />
.432<br />
.007<br />
.017<br />
.178<br />
.432<br />
.010<br />
.020<br />
.254<br />
.508<br />
.010<br />
.020<br />
.254<br />
.508<br />
.010<br />
.020<br />
.254<br />
.508<br />
Cylinder Main<br />
Brg.<br />
Cylinder<br />
Cover/Flange<br />
Main Bearing<br />
Diameter<br />
1.0005<br />
1.0010<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
25.413<br />
25.425<br />
1.0005<br />
1.0010<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
25.413<br />
25.425<br />
1.0005<br />
1.0010<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
25.413<br />
25.425<br />
1.0005<br />
1.0010<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
25.413<br />
25.425<br />
1.0005<br />
1.0010<br />
1.0005<br />
1.0010<br />
25.413<br />
25.425<br />
25.413<br />
25.425<br />
* Check to detemine bore size<br />
Notes: (A) VM & HM80 - Displacement 19.41 (318 cc) (B) VM & HM80 - Bore 3-1/8"(79.375 mm) (C) VM & HM80 Piston Dia. 3.1195/3.1205<br />
(79.235/79.261 mm) (D) VH50, 60 .0015/.0055 (.038/.140mm) (E) VH70 .0038/.0073 (.097/.185 mm) (F) VH, HH50-70 Models .003/.031<br />
(.762/.787 mm)<br />
95