anyone use inline fuel filters?

[amamet]

like the title says.  just wondering if I should install them on the lemans fuel lines or if the screen on the petcock and on the carbs are enough
thx
allen

[moto-uno]

 On my carbed bikes , yes , for decades actually and they take longer to plug than the small one on the carb .
And they're easier to clean and less messy , doubt they're a necessity , but old habits die hard . Peter

[John A]

Depends on the internal condition of the tank.  the screens are enough for me if the tank is clean .  finding a good place to put decent good looking filters can be troublesome 

[Andy1]

I have in the past.  I found the type with syntered elements too fine, and like paper elements can block......transpar ent nylon mesh best, about 100 micron.  Nowadays I flush the tank once a year (this is on a BMW Airhead) and run just with the in tank filters
AndyB

[Don G]

I usually leave the fuel lines a bit long and let them form a bit of a U, the heavy shite settles out in the bottom of the U, pull the lines and turn on the cock to flush clean.  DonG

[bigbikerrick]

I  still put them on all my carbed bikes, including my 85 LeMans. The X fuel line set-up on Guzzis makes it ideal to splice in a couple of the clear plastic/ brass element mini filters.  It doesnt take much debris to foul a float needle, so why not use them? I am sure they are overkill, since my tanks are clean inside, but like others here, old habits die hard, especially if used to running 1970's  pre mix 2 stroke bikes, and the steel  5 gal."Army" cans we used back then.
Rick.

[1down5up]

I don't, my thoughts are if the crud is small enough to get past the filter on the tap and the filter in the carb then its small enough to flow straight on through.

Why would dellorto put in a filter that is not fine enough for there carb?

[moto-uno]

  ^ $ , remember the plastic switch housings held together with those 2 cheap wood screws  , Peter

[1down5up]

  ^ $ , remember the plastic switch housings held together with those 2 cheap wood screws  , Peter

??? Not sure I follow??

[frozengoose]

like the title says.  just wondering if I should install them on the lemans fuel lines or if the screen on the petcock and on the carbs are enough
thx
allen

Think I replied to this once before, but maybe that was one about fuel injection? Anyway I've used the metal in line filters, the kind you can get for $3-4 (well maybe $5 now) at most auto parts stores, for years, first on old Triumphs and then on the T. I'm rebuilding the carbs on the v65 now and will replace the plastic filter with metal ones. Never had any trouble with them and replace them when I do the air filters. The one down side is you can't see the gas, but that's never been a problem. Cheap insurance.

[Scout63]

Just don’t use the cheap plastic clear ones.  They leak unless you use hose clamps, and snap off at the worst times.  I’ve gone back to not using them.

[80CX100]

      When I set up my CX100, I added a pair of good metal filters from UAP, painted black so they blend in with my fuel line, cheap insurance.

      As already mentioned earlier, I find the plumbing can get a bit crowded in there with the crossover lines etc.

      Kelly

[not-fishing]

My son recently installed a pair on a Triumph 1200 Daytona he's resurrecting.  When the engine wouldn't run due to fuel starvation I told him to check the filters.  Just like mufflers, they cause a restriction in flow.  He pulled them off and the Triumph ran well.  Without a fuel pump the filter restriction proved to be to great on his bike.

[Charles in Lake Charles]

 I use any of the following: Fram G3515, NAPA 3027, Purolator 10024, Wix 33027,

Made of mental and small, easy to fit.

[moto-uno]

  In reference to my earlier remark to your question about why dellorto would use the filter they did . To clarify it
they simply used the cheapest components they could to do a marginally acceptable job . Remember GM's ignition
switch fiasco years ago ( the $10 switch that caused all those accidents ,when bean counters run companies ) . Peter

[drawnverybadly]

https://smile.amazon.com/gp/product/B00068OR8M/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I use this one on my 80's Honda right before the carbs, I only use it as a visual check to see how the fuel looks as I doubt I'm getting any meaningful filtration. I went with this style as it looks handsome out in the open instead of trying to awkwardly hide the ugly cone shaped filters.

[Andy1]

Those glass cylindrical filters are good - washable elements - but the knurled wheel inside the filter needs to be wirelocked in place as if it unwinds the fuel bypasses the filter element - we use them on aircraft and that mod is mandatory.  With steel end fittings they are fire retardant
AndyB

[Furbo]

Depends on the internal condition of the tank.  the screens are enough for me if the tank is clean .  finding a good place to put decent good looking filters can be troublesome

 

[Travman]

Yes, most definitely. With all the work I put into rebuilding carbs, the last thing I want is small particles causing problems. I use the larger automotive style with the paper elements. The paper elements can filter out the smallest of particles, but also provide great flow. These aren’t pretty, but they work.

https://www.napaonline.com/en/p/FIL3003?cid=paidsearch_shopping_dcoe_google&gclid=Cj0KCQjw7qn1BRDqARIsAKMbHDZxFMvjvLXAuo98Jw-zi2WZZymI0_MIyZdUBDjjxtPDKHBRtylI78waAhwEEALw_wcB

[Rough Edge racing]

No matter what type of filter you need to do a fuel check before and after filter installation. Just pull the hose from one carb, use a
 kitchen measuring cup, turn on fuel tap and time the fuel flow for 15 seconds. Then do the same with the filter...
  Example, my 650 Triumph race bike makes about 32 hp dyno hp per cylinder at the flywheel. Each carb is tapped to one petcock. Flow is 16 ounces per minute,, engine runs flat out for 1-1/2 miles with no fuel delivery problems..

[wirespokes]

I don't think I've ever gone out and bought a fuel filter. Some of my bikes have come with them and mostly I just left them there. Now and then, with the airheads, I'd have a float valve stick open, but that's easily handled. No issues with the Guzzis in the four years I've been riding them - and none have filters except what they were born with.

[Antietam Classic Cycle]

Nope. Whatever filters I used in the past, the same red sediment always appeared in the float bowls anyway. Without filters, no more than with filters. Like was mentioned above, a low loop in the fuel line catches anything almost as effectively.

[Tom H]

Travman, that is the filter I have been using as well as the smaller version of it.

Do these type filters go bad sitting on your shelf in their original box??

I had bought a few of them about 5 or so years ago. I decided to change one out that looked fine inside, but the plastic was bent a bit and I thought it might break.

I grabbed one off the shelf and put it in correctly. Bike started fine then was not running right. I had just done a tune up and thought that something failed. I chasing the spark ect.. Then I thought it's acting like it does when it runs out of gas. Pulled the fuel line off a banjo, no fuel. Hummmm. Checked the other side, no fuel. Pulled a line off the tank valve, it flowed fine. Put line back on and cheeked the output side of the filter, no fuel. Bad filter.

Grabbed another filter and it flowed fine. But, I changed out one on my other bike and had the same thing happen. On that bike I changed the lines back to no filter.

Tom

[John A]

on one hot rod Guzzi I built,  I drilled out the internal passages of the petcocks and banjos for better fuel flow.  I don't know if it needed it but it was a long winter..

[Ronkom]

I've always run them on my carbed bikes. I use the 2 spigot screen covers on the dellortos. Left petcock to the right carb & vice-versa providing a long length of gas line to mount filters. The second spigot connects the carbs.  I use only the right petcock for normal running, the left is then my reserve.  Has worked great for nearly 30 years on my Eldo.
Ronkom