Predator 670 Fuel Pump upgrade

In this video we upgrade our stock Predator fuel pump and replace it with a direct replacement fit Mikuni. Everything fits in the stock location and you can get this fuel pump for as low as $17.00 on amazon. Please feel free to ask questions in the comments section below.
Mikuni Fuel Pump -www.amazon.com/gp/product/B00...
Fuel Filter - www.amazon.com/Universal-Filt...

[@moredataforya.7548]

That filter for the fuel pump pulse line has a coalescerfilter in it, not crack haha, basically like steel wool. So that’s normal looking. It is supposed to allow oil vapors to condense on the steel wool, and allow that oil to drip back to the engine. This keeps liquid oil out of the pulsing diaphragm of the fuel pump.
Also definitely have too many fuel filters in line of gas flow, I think that would restrict the weak flow provided by these type of pumps.

[@keithellett4283]

That particular filter was replaced with a nice inline marine filter and the pulse pump was changed out to a Mukini

[@billmers3219]

Hey Keith, thanks for the info!
Are you happy with the 670 predator motor?
Any issues?...
Other than the upgrade on the fuel pump

[@keithellett4283]

I love this motor, I got this motor at a good time on price, they have gone up a bit since I got mine 2 years ago. what do you plan on running this in? my golf cart definitely needed tweaking after I installed this that I was not ware of when I decided to go with this engine set up. You need to upgrade your fuel pump for more flow, if you running the motor for a mud/river boat you wont have to mess with the carb but if you are going to run in a golf cart like myself youll need to watch my latest video on the 670 for matching you jet size and tuning.

[@chuckfowler4754]

What’s the number of E3s you used?

[@keithellett4283]

E3.22, there's also a link in the description of the video. I try and always put links to the tools, part, etc. for what I use.

[@benjaminbreselow71]

Will this fuel pump have enough pressure to be used on a mud motor? I'm getting this motor to build a mud motor but am told I need to replace the fuel pump to a low psi fuel pump

[@keithellett4283]

i dont see why not, is the motor stock? I would like to think if your setup isnt in need of "high flow" of fuel youll be fine

[@dereksmith2929]

I run an electric fuel pump on my mud motor. I have a built 670 on a swamp runner long tail. When the engine was stock, the carb would run dry at WOT. I hooked up a low pressure electric fuel pump, and that fixed it. Now, the motor has a bunch of go fast parts and I’m using a Mikuni 34mm carb. It definitely needs an electric fuel pump to support the factory pump.

[@stevieray1828]

How does the pump perform?

[@keithellett4283]

The pump does put out more fuel but I need to ditch this OEM carb and I am currently pricing out a Mikuni 30mm carb kit, it wont have the high's like the OEM or a larger Mikuni but will be great for lower rpms and mid range. I typically drive this around my neighborhood with the occasional drive to the store. so the 30 mm is perfect for my needs.

[@connorskipper6934]

@@keithellett4283 did you ever go with the Mikuni carb?