//ArrowChat Code
Page 1 of 2 1 2 LastLast
Results 1 to 15 of 30

Thread: 350x need help valve train noise

  1. #1
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18

    350x need help valve train noise

    I bought this 350x it had an exsuast rattle so I fixed it gave it a oil change and now I hear a really like oad rattle checked the rockers and the exsuast rocker has alot of side to side play any help would be appreciated

  2. #2
    Join Date
    Dec 2015
    Location
    Mt.Vernon
    --
    29
    Download the free manual and it tells you how to adjust the vales.

    http://www.oscarmayer.net/atc/manuals/

  3. #3
    Join Date
    Feb 2010
    Location
    Blossvale NY
    --
    4,567
    Some side to side play is normal. Clearance between the rocker and valve stem at TDC of compression stroke is what is crucial.

    See my post in your other thread.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  4. #4
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18
    Quote Originally Posted by RIDE-RED 250r View Post
    Some side to side play is normal. Clearance between the rocker and valve stem at TDC of compression stroke is what is crucial.

    See my post in your other thread.
    I did the valve adjustment to .008mm but it's still pretty lose and there's a very load rattle rattle I didn't notice it before but the baffle in the exsuast was lose so I thought that was it I will dubble check the clearance

  5. #5
    Join Date
    Feb 2010
    Location
    Blossvale NY
    --
    4,567
    If you set them at .008mm that is way too tight! But I'm thinking you typoed as .008mm is just a hair over 3-ten thousandths. I doubt they even make feeler gauges that thin... Download that service manual and verify what the clearance should be. Going off the top of my head (it's been awhile) I want to say the 350x should be .003" intake and .005" exhaust. That's thousandths of an inch not MM, and check the service manual to verify or correct my numbers.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  6. #6
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18
    Ok I let it warm up it doesn't make the nosie at idle only when reved up

  7. #7
    Join Date
    Feb 2010
    Location
    Blossvale NY
    --
    4,567
    Can you post a vid? It's kind of hard to diagnose engine noise through text.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  8. #8
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18
    If you can guide me on how to do it I can and the manual will not let me view it I don't know why

  9. #9
    Join Date
    Feb 2010
    Location
    Blossvale NY
    --
    4,567
    Just checked the link to the manuals and the 350x manual loads for me. Might be something on your end.

    As to the vid, take a vid with your smartphone if you have one, load the vid to Youtube then post the Youtube link here.
    Trikes:
    '85 ATC 350R
    '85 ATC 250R
    '86 ATC 350X
    '85 ATC 350X
    '84 ATC 200ES Big Red
    '84 ATC 125M
    '85 ATC 110
    '85 ATC 70/110

    If you have bought from me or sold to me, please leave me feedback here>>> http://www.3wheelerworld.com/showthr...+RIDE-RED+250r

  10. #10
    Join Date
    May 2016
    Location
    OH Canada
    --
    1,102
    Manual loads fine here too. I use a desktop.
    -------------------------------------------------------------------------------------------------------------------------------------------------------------------

    '83 200X

    Chicks love guys that ride trikes

  11. #11
    Join Date
    Feb 2017
    Location
    Corona CA
    --
    808
    Quote Originally Posted by Bigjohn1982 View Post
    I did the valve adjustment to .008mm but it's still pretty lose and there's a very load rattle rattle I didn't notice it before but the baffle in the exsuast was lose so I thought that was it I will dubble check the clearance
    Should be .08mm.


    Sent from my iPhone using Tapatalk

  12. #12
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18
    Quote Originally Posted by Shawn Powell View Post
    Should be .08mm.


    Sent from my iPhone using Tapatalk
    Ok I will try to upload one in the am I'm working in Detroit tonight and I'm 2 hours from home I really appreciate everything you are trying to do to help me

  13. #13
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18
    Quote Originally Posted by Bigjohn1982 View Post
    Ok I will try to upload one in the am I'm working in Detroit tonight and I'm 2 hours from home I really appreciate everything you are trying to do to help me
    ]https://youtu.be/UBYdx3wSbqo[/VIDEO]

  14. #14
    Join Date
    May 2009
    Location
    S.E. Michigan
    --
    1,250
    I don't really hear anything out of the ordinary on that video.

    You mentioned that you changed the oil. Did you change the filter? If yes, did you put the oil filter in the correct way? The filter goes in backwards from how you would think it should. The hole in the filter goes outwards, against the removable cover. I just wanted to mention it in case the noise is due to lack of oil.

    Here is what the manual says about troubleshooting top-end noises (timing chain is another possibility):
    Click image for larger version. 

Name:	Valve Noise.jpg 
Views:	56 
Size:	74.4 KB 
ID:	244192
    - Frank

    1984 200ES Big Red
    1985 350X (x2)
    1986 350X
    1986 250SX
    1984 Auto-X
    1984 ATC70
    1985 ATC70

  15. #15
    Join Date
    Jun 2017
    Location
    Millington mi
    --
    18
    Quote Originally Posted by wonderboy View Post
    I don't really hear anything out of the ordinary on that video.

    You mentioned that you changed the oil. Did you change the filter? If yes, did you put the oil filter in the correct way? The filter goes in backwards from how you would think it should. The hole in the filter goes outwards, against the removable cover. I just wanted to mention it in case the noise is due to lack of oil.

    Here is what the manual says about troubleshooting top-end noises (timing chain is another possibility):
    Click image for larger version. 

Name:	Valve Noise.jpg 
Views:	56 
Size:	74.4 KB 
ID:	244192

    Here is another video https://youtu.be/zOHeuEo6j_c

//ArrowChat Integreation Code //