Small Engine Specs

Specifications for small engines used on a variety of outdoor power equipment

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Tecumseh Intake and Exhaust Valve Clearances

Standard point ignition: points and ignition coil under flywheel. Solid state and external ignition: Ignition coil outside flywheel, points ( if present ) under flywheel. Solid state: Solid state ignition coil outside flywheel ( no points ).

Engine Type Ignition Type Model Series Intake and Exhaust Valve Clearance
min / max ( in. )
min / max ( mm )
4-stroke L-head STANDARD POINT IGNITION LAV25, LAV30, TVS75 ( 8/1987 & earlier ) .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION H25, H30 ( 1982 & earlier ) .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION H30 ( 1983 Serial No. ) .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION LAV35, H35 ( 1982 & earlier ) .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION H35 ( 1983 Serial No. ) .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION ECV100 .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION TNT100 .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION V40-V40B, VH40, H40, HH40 .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION LAV40, TVS105, HS40, TVXL105 .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION ECV105 .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION ECV110 .004 / .008
.102 / .203
4-stroke L-head STANDARD POINT IGNITION LAV50, TVS120, HS50 .004 / .010
.102 / .254
4-stroke L-head STANDARD POINT IGNITION TNT 120, ECV120 .004 / .010
.102 / .254
4-stroke L-head STANDARD POINT IGNITION V50, VH50, TVM125, H50, HH50 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION V60, VH60, TVM140, H60, HH60 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION V70, VH70, VM70, H70, HH70 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION TVM170, HM70 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION V80, VM80, H70, HM80 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION VM80, TVM195, HM80, HHM80 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION VM100, HM100 .008 / .012
.203 / .305
4-stroke L-head STANDARD POINT IGNITION TVM220, HM100 .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVS75 ( 8 / 87 & earlier ) .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVS90 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION H35 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION V40, TVS105, HS40 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVS100, ECV100, TNT100 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVS/ TVXL115 57000 Series Only .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION LEV115, TVS105 56000 Series .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVS/TVXL 115, 57000 A & later .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVS120 J & later .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HS50 H & later .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HSSK N & later .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION LAV50, TVS120, HS50 G & earlier .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HSSK50 M & earlier .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION VH50, TVM125, H50, HH50 .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION LEV80 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION LEV100 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION LEV115 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION LEV120 .004 / .008
.102 / .203
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HSK60, VH60, TVM140, H60, HH60 .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION V70, VH70,H70, HSK70, HH70, TVM170 (E) MODEL .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HM70 (Models ending in C) .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HM70 (Models ending in D) .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVM170 Models ( F & UP ), HM70 Models (E & up) .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HMSK80, VM80, TVM195 (A-K), HM80 .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HM80, TVM195 (L & up), TVXL195 .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION TVM220 (A-F), HM100 .008 / .012
.203 / .305
4-stroke L-head SOLID STATE AND EXTERNAL IGNITION HMSK100, TVM220 (G & up), TVXL220, HM100 .008 / .012
.203 / .305
4-stroke OHV SOLID STATE OVRM40 .004
.1016
4-stroke OHV SOLID STATE OVRM50-6.75, OVRM105 .004
.1016
4-stroke OHV SOLID STATE OVRM120 .004
.1016
4-stroke OHV SOLID STATE OHH50,OHSK50 .004
.1016
4-stroke OHV SOLID STATE OHH55 - 70,OHSK55 - 70 .004
.1016
4-stroke OHV SOLID STATE OHSK80 - 110 .004
.1016
4-stroke OHV SOLID STATE OHM, OHSK, OVM, OVXL120,130, & OHV11-13 .004
.1016
4-stroke OHV SOLID STATE OHV13.5 - 17 .004
.1016
4-stroke OHV SOLID STATE OH318SA/OH358SA .004
.1016
4-stroke OHV SOLID STATE OH195SA/OH195SP .004
.1016
4-stroke OHV SOLID STATE LH318SA/LH358SA .008 / .012
.203 / .305
4-stroke OHV SOLID STATE LH195SA/LH195SP .004 / .008
.102 / .203
4-stroke OHV SOLID STATE OV691EA/VTX/TVT691 .004
.102