Yamaha 200 EFI fuel pump

[radard]

I have a 2000 Yamaha 200 EFI. The engine consistently cuts off after a minute or two at high rpm. Runs perfect at low rpm and idle. New fuel pump was recommended. Would like opinion prior to purchasing the expensive part.

 

[rodbolt]

Re: Yamaha 200 EFI fuel pump

I would clean the VST pump filter first or maybe do just a wee bit o testing in accordance with the service manual on fuel system vacum. <br /> that pump is about 700 dollars. usually its a work or not work device. usually its a fuel restriction. when was the last service of the VST pump?

 

[bigbrownbuku]

Re: Yamaha 200 EFI fuel pump

check to see if your delivery pumps have clear diaphragms. if yes change them. if they havent been serviced in the last 2 years change them anyway. had the exact problem on an sx200txry this summer, fuel pressure would be solid for about 90 seconds at wot then jump 5 to 30psi and rpm would fall right off. basically the vst was running out of gas from a ruptured diaphragm in 1 low pressure pump (would run all day at 4000rpm). i changed all the pumps (cheaper to change then rekit) and the high pressure pump because i didnt trust it after it had run outta gas numerous times.

 

[radard]

Re: Yamaha 200 EFI fuel pump

Thank you. Could you ID the VST pump for me.

 

[bigbrownbuku]

Re: Yamaha 200 EFI fuel pump

front of the engine port side.<br /> http://www.yamaha-motor.com/outboard/parts/home.aspx