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Old 12-24-2017, 12:12 PM   #29
Pfish
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Join Date: Nov 2005
Posts: 747
Re: Yamaha bogging down under load but idles and runs at speed no problem?????

Gents! I had this same issue. Replaced fuel lines, Low and high pressure fuel pumps--twice! Cleaned the injectors. Here is what the problem was: Since there is so much ethanol in today's fuel, it will eat through metal. I pulled my old Racor fuel filter out and much to my dismay, the housing of the filter was literally falling apart. I strongly suggest moving to a plastic water/fuel separator. Something about like this: http://ph.parker.com/us/en/snapp-dis...eparator-racor You can change these out in about 2 minutes without all the fuss. Once you buy the kit, you can buy each filter for about $30. I change every two tanks. Good luck!
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