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  1. Tractordoctor

    F3680 rpm raising by itself

    Hi,been working on Kubota for close to 11 year and I’ve got a f3680 in the shop that got me stumped… as soon you start it it will start to rev up slowly until it’s overrevving if I hold the remote on relief it slow down and stay there but as soon I let go of the remote it climb again. The start...