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Rpm not right after storage

Brad Dunn

Jet Boat Junkie
Messages
160
Reaction score
39
Points
137
Location
British Columbia
Boat Make
Yamaha
Year
2016
Boat Model
Other
Boat Length
24
One engine is lower on rpm and one high after storage. Was not fogged. Could it just need new plugs. Fine before winter storage. One engine only hitting 6000rpm
 
When was the last plug change?
 
I would just just change plugs regardless of age, $30 for spark plugs and 20 min time is minimal. I have had NGK's fail with less then 20 hours on them.
 
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