Rato RV160 Manuel Du Propriétaire page 23

(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
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