Results 1 to 2 of 2
  1. #1

    can i use this plug on my FX HO?

    07 FX HO Cruiser. Went to the local yamaha place today and they didn't have the regular plugs. they sold me a CR8EB. salesperson said it was hotter and that it would be fine.

    are they safe to use? thanks.


  2. #2
    Not saying that you shouldn't use it, since going from a 9 to an 8 is a small step, but a hotter plug will make the engine more prone to pre-ignition, and make the engine run hotter. I've always heard the the reason for the cooler CR9EB plugs on the FX HO is to help keep a very high revving engine (10000 rpms) from melting down. I'd guess that it also helps keep the engine from knocking with 87 octane fuel............just my 2 cents. That said, I do know guys using that plug on the older FX HO skis, and they report no problems.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. need HELP help finding air intake temp sensor on my fx-ho.
    By islandboy in forum Yamaha PWC Performance (4-stroke)
    Replies: 0
    Last Post: 12-28-2010, 02:05 PM
  2. can i use this tach on my slx780??
    By andy95'slx780 in forum Polaris Open Discussion
    Replies: 2
    Last Post: 05-19-2010, 02:00 AM
  3. can i use this tach on my slx780?
    By andy95'slx780 in forum Polaris Open Discussion
    Replies: 2
    Last Post: 04-29-2010, 03:13 AM
  4. Can I use this to fog my supercharger?
    By djy8131 in forum Kawasaki PWC Performance (4-stroke)
    Replies: 2
    Last Post: 10-23-2009, 10:28 AM
  5. Ski eye - Can I put this thing on my RXP?
    By Jeff C in forum Sea Doo Open Discussion
    Replies: 0
    Last Post: 07-28-2005, 09:53 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •