flyin_dutchman
Jet Boat Addict
- Messages
- 77
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- 23
- Points
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- Location
- OKC, OK
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- X
- Boat Length
- 21
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What is this?
- Thread starter flyin_dutchman
- Start date
- Messages
- 5,871
- Reaction score
- 6,543
- Points
- 492
- Location
- Corinth, TX (DFW)
- Boat Make
- Yamaha
- Year
- 2007
- Boat Model
- AR
- Boat Length
- 23
what does the bottom look like, is it threaded? does it have a flange or lip?
flyin_dutchman
Jet Boat Addict
- Messages
- 77
- Reaction score
- 23
- Points
- 107
- Location
- OKC, OK
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- X
- Boat Length
- 21
BigN8
Jetboaters Admiral
- Messages
- 2,663
- Reaction score
- 5,989
- Points
- 397
- Location
- Corinth, TX
- Boat Make
- Yamaha
- Year
- 2010
- Boat Model
- SX
- Boat Length
- 24
I think it might be the cover for your muffler bearings...
itsdgm
Jetboaters Admiral
- Messages
- 3,671
- Reaction score
- 3,165
- Points
- 417
- Location
- Rancho Santa Margarita, California
- Boat Make
- Yamaha
- Year
- 2007
- Boat Model
- AR
- Boat Length
- 21
Easy, that's a quarter. As for the other thing, I have no idea. Looks like some kind of a plug. I'd throw that away and keep the quarter.
sorry, I'm in a silly mood and couldn't resist. I'm sure somebody here will know what it is.
sorry, I'm in a silly mood and couldn't resist.
I'm sure somebody here will know what it is. 
thcole
Jet Boat Junkie
- Messages
- 199
- Reaction score
- 130
- Points
- 147
- Location
- Pittsburgh PA
- Boat Make
- Yamaha
- Year
- 2005
- Boat Model
- AR
- Boat Length
- 23
I want to say it is a plug that sits in between cylinders 2 and 3 next to the spark plugs.
Andy S
Jetboaters Admiral
- Messages
- 2,843
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- 3,302
- Points
- 357
- Location
- Chapin, SC 29036
- Boat Make
- Cobalt
- Year
- 2016
- Boat Model
- Other
- Boat Length
- 25
I think you have a winner. Based on the parts picture below it looks like it matches what @thcole said.
Andy S
Jetboaters Admiral
- Messages
- 2,843
- Reaction score
- 3,302
- Points
- 357
- Location
- Chapin, SC 29036
- Boat Make
- Cobalt
- Year
- 2016
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- 25
The above part picture is item 36 of the below screen shot.
cwoav8r
Jetboaters Captain
- Messages
- 502
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- 377
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- 212
- Location
- Naples, Florida
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- AR
- Boat Length
- 23
Nah, ditch the quarter, that other part is worth more
- Messages
- 5,871
- Reaction score
- 6,543
- Points
- 492
- Location
- Corinth, TX (DFW)
- Boat Make
- Yamaha
- Year
- 2007
- Boat Model
- AR
- Boat Length
- 23
what does it do ?
flyin_dutchman
Jet Boat Addict
- Messages
- 77
- Reaction score
- 23
- Points
- 107
- Location
- OKC, OK
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- X
- Boat Length
- 21
^^ what he said....
Evildwarf
Jetboaters Lieutenant
- Messages
- 377
- Reaction score
- 458
- Points
- 157
- Location
- Woodstock GA
- Boat Make
- Yamaha
- Year
- 2014
- Boat Model
- Limited
- Boat Length
- 24
The quarter, not a damn thing anymore. Can't even play a game of pinball with it.
The plug is useful, probably for a similar size hole.
- Messages
- 7,150
- Reaction score
- 6,135
- Points
- 527
- Location
- Naples Florida
- Boat Make
- Yamaha
- Year
- 2005
- Boat Model
- SX
- Boat Length
- 23
I believe that the R1 motor has a vent or sensor in that area. Ask somebody that has the motorcycle version.
