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372xp XTorq unlimited coil

Discussion in 'Chainsaws and Power Equipment' started by J. Dirt, Jan 14, 2018.

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  1. mdavlee

    mdavlee

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    Oem jug?
     
    mdavlee, Jan 26, 2018
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  2. J. Dirt

    J. Dirt

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    Yep bought the saw brand new almost a year ago. Maybe 10 tanks through it. Not a ton of use.
     
    J. Dirt, Jan 26, 2018
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  3. mdavlee

    mdavlee

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    Ok. Just wanted to make sure. Seen an aftermarket top end have plating flake and it wouldn't hold a tune. Have you taken the carb apart and checked metering lever height?
     
    mdavlee, Jan 26, 2018
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  4. J. Dirt

    J. Dirt

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    Not yet.... just getting into this one so I’ll make sure I check it!
    By the way...Thanks for the help so far!!
     
    J. Dirt, Jan 26, 2018
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  5. J. Dirt

    J. Dirt

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    This was the best run this afternoon. Still on the unlimited after market coil.
    Notice the idle out of the cut, then the idle after I cleared it.
     
    J. Dirt, Jan 26, 2018
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  6. Fabz

    Fabz Banned

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    Did u check fuel filter ? If good try new fuel lines ... could have a pin-hole and as the tank empties it sucks air ...
     
    Fabz, Jan 26, 2018
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  7. J. Dirt

    J. Dirt

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    L 1 turn, H 1 5/8 turn, the T screw (what I called LI earlier) almost has the throttle cam sitting on the threads, barely on the ramp of the screw. 4AE9D12B-A6D0-433E-A300-BE52D8BFF0E1.jpeg
    I checked and had 153 psi compression cold.
     
    J. Dirt, Jan 26, 2018
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  8. mdavlee

    mdavlee

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    It sounds pretty rich on H but shouldn't be enough to load it up like that. Maybe lean the H out a little and richer the L if it doesn't make it sluggish.
     
    mdavlee, Jan 26, 2018
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  9. J. Dirt

    J. Dirt

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    Just getting up there in R’s it seemed on the high end I thought in the 13,300 neighborhood? I know you said stay under 13,5 but I’m getting a bit worried or shouldn’t I be? I’ve got 40:1 in it now too.
     
    J. Dirt, Jan 26, 2018
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  10. mdavlee

    mdavlee

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    13.3-13.5k should be fine. That could be your problem.
     
    mdavlee, Jan 26, 2018
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  11. J. Dirt

    J. Dirt

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    To rich on the high end? Then slamming the throttle closed at the end of a cut the fuel that’s blasting in has no were to go and causes an instant rich stall? Makes sense... if I’m trying to keep it from stalling and tickle the throttle I can usually save it.
     
    J. Dirt, Jan 26, 2018
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  12. The Wood Wolverine

    The Wood Wolverine

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    I’m not 1/1000th the saw guy Mike is, but the symptoms you describe, if someone came into the bike shop describing them, I’d think float bowl level. So maybe something to the metering lever height?
     
    The Wood Wolverine, Jan 26, 2018
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  13. huskihl

    huskihl

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    That right there is spot on. The chamber, plug, and case are too rich for an instant idle.
     
    huskihl, Jan 26, 2018
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  14. J. Dirt

    J. Dirt

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    Tomorrow! The quest for the perfect tune continues!! :saw:
     
    J. Dirt, Jan 26, 2018
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  15. The Wood Wolverine

    The Wood Wolverine

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    Learning from you guys fer sure.... I make the 394 pig rich to mill with and I’ve never had those symptoms. Course, I ain’t bucking with it the either.
     
    The Wood Wolverine, Jan 26, 2018
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  16. huskihl

    huskihl

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    The added heat from milling is probably burning the added fuel. You might notice it at 1/4 or 1/2 turn richer. I see it on most saws when I do a rebuild, as I always start rich and work my way up to a good tune
     
    huskihl, Jan 26, 2018
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  17. J. Dirt

    J. Dirt

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    Could some of my trouble be due to things finally breaking in?
     
    J. Dirt, Jan 26, 2018
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  18. J. Dirt

    J. Dirt

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    Same here! Thanks for the help guys!!! Keep it coming!!
     
    J. Dirt, Jan 26, 2018
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  19. beaglebriar

    beaglebriar

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    A slight tear in the fuel line where it passes through the floor plate can happen on these saws. That will mess up your tune for sure. Being used that little I doubt there's a problem with seals or anything like that.

    I have a good limited coil you can try if you want to. Where in NY are you located?
     
    beaglebriar, Jan 26, 2018
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  20. concretegrazer

    concretegrazer

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    Was it running fine before you started messing with it?
     
    concretegrazer, Jan 27, 2018
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