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Thread: 175 tri moto engine question

  1. #1
    Join Date
    Sep 2008
    Location
    Brunswick Ohio
    --
    66

    175 tri moto engine question

    what is the part of the engine on the rt. hand side with the small black cover and two tubes coming off of it? there is nothing behind it but a deep hole. when i took the cover off, about 1/4 cup of old gas came out.

    Also. I think this engine has been outside for a long time. I have it running but was affraid to run it at any length figuring it was full of grime. besides cracking the case, is there a way to flush it out?

    as always....thanks.....vince

  2. #2
    Join Date
    Feb 2006
    Location
    EC
    --
    1,607
    That's the oil injection pump, most guys get rid of it & premix their gas.

  3. #3
    Join Date
    Sep 2008
    Location
    Brunswick Ohio
    --
    66

    other cover

    that was the cover to the right. i disabled the pump last night. iti is the cover to the left in the picture that i am wondering about.

  4. #4
    Join Date
    Feb 2006
    Location
    EC
    --
    1,607
    Wait a minute, I think the oil pump is up front on that side. I'm not quite sure what that is, mine didn't have it when I got it.

  5. #5
    Join Date
    Sep 2008
    Location
    Brunswick Ohio
    --
    66
    thanks for looking gazoo

  6. #6
    Join Date
    May 2006
    Location
    illinois
    --
    743
    i think they are the gastank pressure pump tubes?
    injector lines are on the right hand side ,front of the motor with the 2 little tubes
    you can look all the parts up on microfiche , maybe bike bandit, or cycle parts nation
    they will say what they are, im going to look for my self lol

  7. #7
    Join Date
    May 2006
    Location
    illinois
    --
    743
    Quote Originally Posted by jason 32 View Post
    i think they are the gastank pressure pump tubes?
    injector lines are on the right hand side ,front of the motor with the 2 little tubes
    you can look all the parts up on microfiche , maybe bike bandit, or cycle parts nation
    they will say what they are, im going to look for my self lol

    ok it doesnt say on there , i dont have mine in front of me either, and havent worked on it sorry
    its there for something though lol

  8. #8
    Join Date
    Nov 2008
    Location
    Coon Rapids, MN
    --
    956
    That cover to the left is a gas overflow chamber, you can clean it out by taking the three screws out and just cleaning it out other than that don't worry about it.
    Last edited by old-yellow; 03-22-2009 at 05:15 PM.
    1982 Yamaha YT125 tri-moto - Boyesen power reeds, YT175 front suspension, Headlight guard.
    1982 Yamaha YT175 tri-moto - Running but ugly
    1984 Yamaha YT 60 tri-zinger - Boyesen power reeds



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