Spark Plug Inspection; Cleaning; Adjustment; Recommended Spark Plug - Tank Viaggio 150 Operating Instructions Manual

D. SPARK PLUG INSPECTION:
●Large gaps, thick deposits and electrode erosion will result in poor
spark plug performance.

1.Cleaning:

●The best way to clean plugs is with spark plug cleaner.
Purchase at any automotive shop.
●Use of a wire brush is okay if no cleaner is available.

2.Adjustment:

●Normally electrode gap is 0.025- 0.030. (as shown.)

3.Recommended spark plug:

NGK-CR7HSA
●If failing problems occur use NGK-CR6HSA.
●Do not use spark plugs not recommended or cross referenced.
WARNING:
●Engine is still very hot after engine stops.
Be careful not to burn yourself.
●Turn spark plug finger tight, then tighten with
spark plug wrench. *Do not over tighten.
Side Electrode
Center
Electrode
Sealing
Washer
25
(0.6~0.7)mm