Broken head nut/bolt and Loss of top end speed/power

Note: This site contains eBay affiliate links for which SeaDooForum.com may be compensated
Status
Not open for further replies.

Marc 123

Member
Hello everyone,

Can anyone tell me the cause of one of these Cylinder head nuts/bolts breaking off? And is this the cause of loss of power and speed?

I was riding my jetski one day and noticed that the power wasn’t there like before and top end speed wasn’t there. I lost about 300 rpm and about 5mph.

The maint light was coming on so I swapped the plugs and charged the battery and still was getting the warning light until I reset it by holding down the two of the information center buttons.

and then I re test drove it and still felt the same power loss in top end speed. I then inspected the engine and found the nut/bolt broken off and laying on the hull floor.

im at a loss of why this would happen.

Any help would be appreciated and I posted pictures of exactly what nut/bolt I’m talking about.

Thank you
 

Attachments

  • B86ABB36-C54B-43DA-B648-9FB6FB713D00.jpeg
    B86ABB36-C54B-43DA-B648-9FB6FB713D00.jpeg
    1.7 MB · Views: 5
  • 2A223D05-95E6-4058-97E8-931C2A79C8EE.jpeg
    2A223D05-95E6-4058-97E8-931C2A79C8EE.jpeg
    2.5 MB · Views: 5
  • 85276208-43D8-4402-B8C7-411B314C035A.png
    85276208-43D8-4402-B8C7-411B314C035A.png
    8.2 MB · Views: 5
Status
Not open for further replies.
Back
Top