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Sand on cylinder 1

G

guelo_ar250

Active Member
Messages
12
Reaction score
18
Points
32
Boat Make
Yamaha
Year
2024
Boat Model
AR
Boat Length
25
While replacing valve cover and spark plugs on my tr-1, found sand on cylinder 1. Why this is happening and how to cleaned. Thanks in advance
 
Ar 250 with a tr1, am i missing something. Where did you find the sand? In top of the piston? Why are you replacing valve cover
 
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