Leaking gas the cause of bad mileage? By trailheadmike (Read 737 times)

[trailheadmike]

So I've written on a few mileage threads that my 257cc engine gets in the high 40's while others say they get in the 60s. Well, today I noticed for the first time some gas on the ground when I pulled in to work this morning. A little troubleshooting and I see that what the local auto parts guy called a "check valve" between the fuel pump and the carb was spraying away with gas when the engine was on. I have only recently smelled gas, so I'm guessing it was a small leak getting progressively worse. I just changed it out with a spare I had and no leak! Hopefully the mileage will follow.

I have a question though. Here's what cracked:
.bmsmotorparts.com/product_info.php/products_id/2655" rel="nofollow" target="_blank">.bmsmotorparts.com/product_info.php/products_id/2655
It looks like a filter, but it is empty (i.e., it's a housing with no filter). The autoparts guy said that it keeps the gas from sloshing back. I'm not sure how gas would get past the fuel pump though if it wanted to slosh so I don't know what this thing really does. Do I need this thing? Should I cut it out? What do you guys think??

[JR]

Sloshing? A new one on me. IMO I'd get rid of it.

JR

[speedracer]

Looking at that blur of a picture it looks like a fuel filter to me. They are cheap and can crack. Replace that filter.

[tvnacman]

Mike , I have that type of filter and there should be a removable screes in there . Sloshing around gas I don't think so gas will grow when hot perhaps room for expansion .

John

[alleyoop]

Yep, that sure looks like a Fuel Filter to me, That part should be somewhere from your carb Fuel Inlet to your PETCOCK or Fuel Pump or Tank. Some put the Fuel Filter between the Tank and the Petcock or Fuel Pump. Some put the Fuel FIlter between the Petcock or Fuel Pump and the Carb.
Alleyoop