·
…20…
·
(1)……Remove…the…spark…plug…cap.
(2)……Clear…away…dirt…around…the…spark…plug…base.
(3)……Dismantle…the…spark…plug…with…a…spark…plug…wrench.
(4)……Visually…check…the…spark…plug.…Clean…with…a…steel…brush.…If…the…
insulator…is…damaged,…replace…the…spark…plug…instead.
(5)……Measure…the…spark…plug…clearance…with…a…feeler.…The…clearance…should…
be…0.7~0.8mm.…If…adjustment…is…necessary,…bend…the…side…electrode…
carefully.
(6)……To…avoid…cross-threading,…first,…screw…in…spark…plug…by…hand,…then…
tighten…with…a…spark…plug…wrench…to…compress…the…gasket.
(7)……If…a…new…spark…plug…is…used,……please…replace…it…with…same…spark…plug…
model…as…can…as…possible,…and…more…twist…1/2…turns…after…compressing…
the…gasket.
(8)……If…reinstalling…the…used…spark…plug,…just…more…twist…1/8-1/4…turns.
(1) The spark plug must be tightened securely, or it may become
very hot to damage the engine.
(2) Only use recommended spark plug or the equivalent. Incorrect
heat range of the spark plug may damage the engine.
4)……Idle…speed…adjustment…of…the…carburetor
.… (1)…Start…the…engine…and…preheat…it…to…normal…operating…temperature.
.… (2)…Adjust…the…throttle…stopping…screw…to…obtain…minimum…idle…speed.
…
Minimum…idle…speed:(1,900±100)…r/min.
MAINTENANCE
Summary of Contents for 173cc
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Page 9: ...6 2 Model No MODEL NO FINISHED PRODUCT NO PARTS DESCRIPTION SER NO 170...
Page 31: ...28 XII Parts List and Diagram Assembly Diagram Parts List and Diagram...
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Page 45: ...6 No de mod le No DE MOD LE No DU PRODUIT FINI DESCRIPTION DES PI CES No DE S RIE 170...
Page 67: ...28 XII Liste et sch ma de pi ces Liste et sch ma de pi ces Assemblage Diagramme...
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