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have twins 01 250 efi's the port motor hesitates or stubbles when taking off, idles well aswell runs wot with no problem, I took it to a dealer st sync the links as i did not want to fool around with the oil rod. after he looked at it , he says it may be a tps sensor,or a fuel related issue, and asked if i ever did a leakdown test on that motor. the lows pressure pumps were changed last year. vst changed a month ago, 02 sensor cleaned. I believe these motrs run on 4 cyl until 1800 hundred or so , then run on all 6. Is it possible that I could have a coil going in and out ??? also is it possible that I have a issue withthe fuel injector filters?? I had a issue back a few years ago and cleaned them and it fixed my issue of staling at low speeds , can these filters be bought without buying a complete injector, also who is gd at cleaning injectors
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Get the dealer to check TPS and fuel pressure's and test injectors, the injector filters are sold by Yamaha.
Can send injectors to
Flagship Marine Engines Co., Inc.
200 E. Ann St.
Punta Gorda, FL 33950-6006
Ph: 1-888-282-2840
Website: Flagship Marine Engine Co.
E-mail questions to:
info@flagshipengine.com
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