Stock water separator in fuel line?

[SJBrit]

Are people keeping the stock water separator in the fuel system when plumbing after-market carbs? I've seen some very elegant looking fuel plumbing, and I seem to think that some (many?) people do away with the separator. Seems like a good idea to keep it, which is I'm asking.

 

[wickedwhitwix]

I would like to know also

 

[jman89]

x3.... bump.

 

[Freakrider]

I have kept my oem filter/seperator in the circuit and added the Hi-flow filters right after the pick ups....Also removed the tiny filters in the carbs...no screens in the 61x type airbox too...this all got the Ok by Chucky at XS to run...

 

[SJBrit]

Well, let me be more specific. I wasn't actually, talking about the filter, although now I see that that is also a water separator in the OEM system. My original question was referring to the little doo-dad with the drain plug inline with the breather. But I guess the question really refers to the OEM filter and that doo-dad since they both appear to have a water separating function. Or am I wrong? I can't really figure out what the one in the breather line is for - maybe to stop fuel running back into the tank from the breather tube...?

 

[Freakrider]

you are talking about yamaha part # 19 listed under fuel tank, FILTER, TANK VENT ASSY...I left mine stock but remove drain plug or drill a tiny hole in plug for continual drain...otherwise you have to remove drain plug as it collects water...pia

 

[SJBrit]

you are talking about yamaha part # 19 listed under fuel tank, FILTER, TANK VENT ASSY...I left mine stock but remove drain plug or drill a tiny hole in plug for continual drain...otherwise you have to remove drain plug as it collects water...pia

Yes - that's the part. When I think about it it is definitely to stop back-flow from the breather. I think I'll just use the fuel line coil trick.

 

[MNTURBO]

ditch the water separator, it is really only needed because the breather goes up into the pole and can suck up water easily

here's how mine is set up. Small "U" bend with the little one way valve
http://farm3.static.flickr.com/2701/4201973580_d08cd5e6b6_b.jpg

 

[kevbo]

Are people keeping the stock water separator in the fuel system when plumbing after-market carbs? I've seen some very elegant looking fuel plumbing, and I seem to think that some (many?) people do away with the separator. Seems like a good idea to keep it, which is I'm asking.

The separator does catch most of the water in the vent line before it gets in the tank. Where would you rather have the water go? Venting the tank inside the hull along with not using flame arrestors is very popular these days. IMHO it is also very stupid, think things through before you start hacking away at a good design.

 

[superjetkev]

i kept mine. why not? mine was always full of water so it obviously works. just havent seen a good reason to ditch it.

 

[WFO Speedracer]

We always ditch that part on the X2's, venting the fuel tank inside the boat is not that big of deal as the pressure required to actually let pressure escape from the tank is quite high,most of the time we have our hoods off to refuel anyway. If you want the safest setup then yes run the vent to outside of the boat, on a non pressurized fuel system such as you see on a boat you must vent to the outside, on a pressurized type of fuel system as run in a watercraft I view it as optional.

 

[Freakrider]

i kept mine. why not? mine was always full of water so it obviously works. just havent seen a good reason to ditch it.

I drilled a tiny hole in the drain plug to make it self draining...

 

[MNTURBO]

I drilled a tiny hole in the drain plug to make it self draining...

or you could just unscrew it a couple turns

 

[Dustin Mustangs]

i kept mine. why not?

Does anyone have a good answer to this? Because there are certainly a number of good reasons to keep it.

 

[grezzmky]

leave it if it works, I took mine off and ran the line in a corkscrew like 6 times and i got water in the fuel both times i swamped the boat. so, if it works, leave it i guess

 

[MNTURBO]

Does anyone have a good answer to this? Because there are certainly a number of good reasons to keep it.

I removed it because my pipe left no space for it, but I believe others remove it because it the stock breather setup takes on water easily

 

[Patrick Star]

I left mine on the way it came. As far as water consumption goes I siphon my tank every month or so and get water in the gas very rarely, and it's only a few tiny drops. I see no need to eliminate stuff like this, I putt around in the surf mainly and ride off off shore a mile at best. I wouldn't call what I do frestyle by todays standards, but I do see my fare share of submersions, wipeouts in the waves, and required stops to allow the bilge pump to drain the hull after sets of subs, but I blame that on the stock SN hood step up.

 

[BombThreat]

I leave mine on. I've drained mine a couple times and that's enough times for me to know its doing its job.

 

[superjetkev]

I drilled a tiny hole in the drain plug to make it self draining...

exacally what i did. i guess this is one of those "to each his own" things. WFO makes some good points. but also yamaha wouldnt bother with putting them in if it wasnt a good idea.

 

[OCD Solutions]

I plumbed mine in when I built up my 07 and plan on doing the same with my new build. It's free, it's safe and it works...the only negative I know of is that it is very good at seperating the skin from the back of your hand when servicing pissers or waterbox elbow or anything up in that corner. I may relocate it slightly depending on how much room I have.