Yamaha 4 Stroke Outboard Engine Carb Rebuild Series - Fuel Pump Rebuild and Test

[@reddragon3787]

Awesome

[@delorean1]

Thanks!

[@ionutb899]

Excellent....! Clear explanations and very to the point! Thanks for these videos!

[@delorean1]

You are welcome!

[@corvette8088]

This was an excellent instructional video, the narration was really efficient and clear, thank you for making this video!

[@delorean1]

You're welcome.

[@hungnguyen-bv6mk]

THANK YOU . VERY MUCH FOR YOUR VIDEO

[@delorean1]

You are welcome!

[@KLyonFL]

Nice job… Changing the LP pump on my 02 DF140 tomorrow.

[@delorean1]

Good luck.

[@chrisseegert9345]

Your videos are awesome and very much appreciated. I found that Vaseline works good with gaskets to

[@delorean1]

Glad they helped.

[@regkershaw]

It's good you could get a service kit for this pump... I have a yamaha f70 4 stroke injection outboard and I had an issue with the same pump I was told it was the low pressure pump and its a issue with yamaha that these pumps fail and leak fuel into the oil in the engine and cause damage... I was informed by a dealer that a kit wasn't available and I had to buy a new pump which cost $350 Australian dollars. I was pissed that a kit wasn't available and for this to be an issue with the outboard to have to pay that amount....

[@obiewon5483]

this video helped me alot...thnx.........

[@delorean1]

Glad it helped

[@cro2eventstuttgart607]

Hello has the same problem I can’t go over 4500 RPM and high speed is maximum 30 km/h and I have opened a fuel pump and I have to see a broken. Is that the reason? 17:01

[@st.k.4528]

May I ask about your setup, it seams unclear to me. Do you apply pressure to inlet or outlet? I have a smaller pump, when I connect my gauge to outlet and pump the plunger manually, pressure rises and drops doesn't matter if I plug or leave free the inlet port.

[@delorean1]

Did you open it and inspect, its a quick job to check the inside of the pump.

[@st.k.4528]

@delorean1 yes I did, so my issue was I side the carb. When I cleaned it first time, I did nit remove the jet amd big center time with many holes that you unscrew from the bottom, from the bowl. When I inspected everything once again, I did it and motor works perfect. I did buy fuel pump membrane anyway because it doesn't work well when I have less than half a tank of fuel.

[@GasGuzzlerV8]

Hi! Thank you for video! I think this is exactly problem im my engine, who start after one day or more, at 4th 5th time! He waste fuel in fuel line! Thanks again1

[@saddamsobig]

From where you get spare

[@danieltravis2850]

So are we thinking the crud in there is from sour gas or are the fuel lines breaking down?

[@delorean1]

That’s the thought. From the old fuel tank since replaced.

[@MessaoudDjalel]

lapomp dwil moter 50ch 4ton

[@jakeclark3751]

Mine only come out of the top out line not the one under it

[@saddamsobig]

I have Yamaha F 40 A same issue