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  1. #1

    Join Date
    Jul 2005
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    Miami, fl
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    223

    Walbro GSS 315 /GSS 342

    I was doing some testing today, and was still going lean at anything over 16 psi with rotax, 60# injectors and 65psi. Well I decided to accelerate the ski until 10psi of boost while looking the gauge, and for my surprise the preasure instead of rising from 60 to 70 went down to 50-48psi, the reason why my ski is going lean. My thought is the pump, still need to check the regulator. I have a gss 315 which is a low preasure 255 liters walbro. Will this work better than the stock pump? Do I need to modify anything in the pump assembly.
    Thanks


  2. #2
    R88ory RXP's Avatar
    Join Date
    Feb 2008
    Location
    Kent, England
    Posts
    2,737
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    46
    You need the GSS 342. Mod mods to fit it straight swap. 1.5 hours max and you are done. R88

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