• Welcome to Jetboaters.net!

    We are delighted you have found your way to the best Jet Boaters Forum on the internet! Please consider Signing Up so that you can enjoy all the features and offers on the forum. We have members with boats from all the major manufacturers including Yamaha, Seadoo, Scarab and Chaparral. We don't email you SPAM, and the site is totally non-commercial. So what's to lose? IT IS FREE!

    Membership allows you to ask questions (no matter how mundane), meet up with other jet boaters, see full images (not just thumbnails), browse the member map and qualifies you for members only discounts offered by vendors who run specials for our members only! (It also gets rid of this banner!)

    free hit counter
  • Guest, we are pleased to announce that Hydrophase Ridesteady is offering an extra $100 off for JETBOATERS.NET members on any Ridesteady for Yamaha Speed Control system purchased through March 7th, 2025. Ridesteady is a speed control system (“cruise control”) that uses GPS satellites or engine RPM to keep your boat at the set speed you choose. On twin engine boats, it will also automatically synchronize your engines.

    Click Here for more information>Ride Steady group buy for JetBoaters.net members only

    You can dismiss this Notice by clicking the "X" in the upper right>>>>>

Help locating this loose bolt

Ando

Well-Known Member
Messages
103
Reaction score
80
Points
57
Location
Los Angeles
Boat Make
Yamaha
Year
2008
Boat Model
AR
Boat Length
23
Found this laying in the engine compartment and I can't locate where it may have came out from.
2008 Yamaha AR230
 

Attachments

  • 20190619_151925.jpg
    20190619_151925.jpg
    561.4 KB · Views: 23
  • 20190619_151914.jpg
    20190619_151914.jpg
    477.9 KB · Views: 24
Keep looking around the engines you will find where it came from. I had one like that come loose and it held a bracket to the side of the engine.
 
Last edited:
It looks like it only had about an 1/8th of the threads screwed into whatever it came out of so its something wide that it went through.
 
Mine was up top by the air cleaners, to the left in the middle holding a bracket
 
Is the head of the bolt a 14mm or 12mm?
 
Looks like it's pretty beefy with course threads. Is it possible that's an engine mounting bolt? Check all four feet on each motor to make sure.
 
My gues is an enging mount bolt...oretty darn important torque can do som hefty damage...i believe there are 4 of these on EACH engine.
 
@Milwarc mention engine mounts...double check all your mounts. Looks like the bolt under the air case too, but that one would not have come out of the airbox I wouldn't think. Best of Luck!
 
As large as it is, i would guess engine mount also.
The imprint on the washer should lead you in the right direction
 
My first thought was also the top of one of the motor mounts
 
Check the engine compartment hinges in the inside on top be cause it happen to me on each hinge they have to screws.
 
Back
Top