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Thread: YTM 225dx ticking

  1. #1
    Join Date
    Dec 2019
    Location
    Ohio
    --
    7

    YTM 225dx ticking

    I read a post from a while back, someone had a ytm 225dx that was ticking. My '84 that I recovered from a barn has a high pitch "tinny" tick sound coming from it. especially at idle. I haven't adjusted valves yet, but I did pull the cam gear cover and the cam chain has no slop whatsoever. I mean banjo tight. Any advise would be appreciated, thanks in advance.

  2. #2
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,018
    Get a manual and set your cam chain and valves ASAP.

    My 200 ticks pretty loud (same head as 225). I can’t find anything out of adjustment, so I’ve been using it like that for 10 years. It’s quiet on startup, but once it warms up it starts ticking. I might try a heavier oil one day.

    Another thing to keep in mind is that if you’re accustom to water cooled engines then any air cooled motor is going to sound noisy.
    It sucks to get old

  3. #3
    Join Date
    Jul 2020
    Location
    Western Pennsylvania
    --
    107
    I'd say you need to check on those valves. My DX runs silky smooth so I'm interested to see what you find.
    3 Wheels:
    1982 Honda ATC 185s
    1983 Honda ATC 250R
    1984 Yamaha 225DX
    1985 Honda 250SX
    1986 Honda Big Red 250ES

    4 Wheels:
    1986 Suzuki LT50
    1987 Honda TRX 250 Fourtrax
    2023 Honda Foreman

  4. #4
    Join Date
    Dec 2019
    Location
    Ohio
    --
    7
    Hey guys, thanks for all your advise. I adjusted the valves, they were way out. Now it runs like new, quiet and smooth. I’m tickled.

  5. #5
    Join Date
    Jul 2020
    Location
    Western Pennsylvania
    --
    107
    Quote Originally Posted by gordonj View Post
    Hey guys, thanks for all your advise. I adjusted the valves, they were way out. Now it runs like new, quiet and smooth. I’m tickled.
    Always so fulfilling when you can get an issue like this addressed and get your machine running perfect!
    3 Wheels:
    1982 Honda ATC 185s
    1983 Honda ATC 250R
    1984 Yamaha 225DX
    1985 Honda 250SX
    1986 Honda Big Red 250ES

    4 Wheels:
    1986 Suzuki LT50
    1987 Honda TRX 250 Fourtrax
    2023 Honda Foreman

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