Inline fuel filter. Good idea or bad?

[CoreyP]

Had my tank off to check the air filter and while I was at it I took out the petcock and took a look at that. Pingel petcock along with the best looking fuel filter I have ever seen. Looks like it made out of glass and chrome.

Question is this, since Valkyrie's are gravity feed fuel wise is it a bad idea to have an in line filter on the gas line? I don't see one on the stock setup. Seems like it would put a restriction on the amount of fuel flowing through to the carbs? 

[Fazer]

see the responses to the same question about 20 posts down.  Consensus is not to mess with the fuel draw.

[CoreyP]

Didn't realize there was another post about it.

What's the chances of that question coming up so close together?

[John Schmidt]

Since I installed a manual Pingle years ago, I've had an inline filter and DanMarc elec. shutoff installed. Reason for the inline filter is due to extending the length of the pickup tube on the Pingle so as to have approx. the same amount of reserve as the stock petcoc. The Pingle filter was them too short so couldn't be used; solution, install an external inline filter. Been trouble free since day one BUT you need to be careful how you install it.

[MarkT]

I had fuel starving with 2 different filters.  One was a VERY free-flowing one, the one in the R&M kit.  So I took them out.  But take that with a grain of salt because I made other changes at the same time.  And had the starving while pulling a heavy camper cross country.  And had the smaller orifice fuel solenoid which I replaced with the 1/4" orifice one.  Now have a pingel petcock on that bike and no starving even when I get down to 17mpg pulling the Timeout fast.  And a huge amount of fuel with an IS and belly tanks.  Though set up with gravity feed, not fuel pumped.  Wish I could filter the fuel and not cause a problem.

[CoreyP]

Reason for the inline filter is due to extending the length of the pickup tube on the Pingle so as to have approx. the same amount of reserve as the stock petcoc. The Pingle filter was them too short so couldn't be used; solution, install an external inline filter. Been trouble free since day one BUT you need to be careful how you install it.

I don't understand that completely. My pingle has a tube with mesh filter intake that is pretty long. I don't see why that part would be a problem? I don't know what model or year mine was installed but it looks close to the stock intake tube length wise

What do you mean by carefully installed? Mine is simple, petcock about an 2 inches of fuel line, fuel filter then a taught fuel line from there. I have very little slack. Just getting the fuel line off of the petcock was not so easy and reinstall was kind of tricky because of the lack of slack.  I assume that's a good thing for fuel pressure.

BTW I haven't had this bike over 85 and haven't noticed any fuel starvation.  I think my days of 100+ are over so I'm not worried about that. I would like the bike to be capable of what it is capable of. The bike by looking at the plugs is running lean and I'm trying to figure that out. That's the real problem I'm trying to figure out one step at a time.

[9Ball]

BTW I haven't had this bike over 85 and haven't noticed any fuel starvation.  I think my days of 100+ are over so I'm not worried about that. I would like the bike to be capable of what it is capable of. The bike by looking at the plugs is running lean and I'm trying to figure that out. That's the real problem I'm trying to figure out one step at a time.

What air filter are you using?  OEM or K&N?

Do you have stock exhaust or 6x6 type?  Did you or previous owner install a jet kit?

These answers will help diagnose the lean condition you are seeing on the spark plugs.

[vanagon40]

I added a Purolator (Champion) FF1203 (OEM F10024) fuel filter in 2009. No problems in the 10 years since.

[CoreyP]

What air filter are you using?  OEM or K&N?

Do you have stock exhaust or 6x6 type?  Did you or previous owner install a jet kit?

These answers will help diagnose the lean condition you are seeing on the spark plugs.

Fuel filter unknown, it's not OEM.

Exhaust is truck stacks with glass packs and trombones from HorseApple Ranch.

Paper work says bike has been re-jetted but is says nothing other then that.  

Air filter is stock.

Bike has been dyno'ed a few times in the past and was running well. From the looks it was a stock run, after exhaust install run and after a re-jet run then a final dyno 6 years later to probably see if everything was still running right. I assume after re-jet because it's noted whether the trombones were in or out on an early dyno run. Also the HP and Torque curve was raised in the last dyno run so something was changed on the bike.

He also has the instruction for an Air Lake trigger wheel, not sure what that is all about and he has the instructions for polishing the intakes. Don't know if either of those was done.

This bike isn't real straight forward on what work has been done on it. The bike may have been setup at a high temperature or high altitude. My house is 22 feet above sea level. I had no problem when the temps were 80 plus. This came on with cold weather which where I am is 45 degrees F on a bad day. This winter I've been riding in mostly 50's and low 60's.

Any other question please ask.
    

[CoreyP]

Little more info. The last dyno run was made in Council Bluff, IA.

87 F 29.23 in-Hg Humidity 31%

Don't know if anything was adjust at that dyno run but that's my normal temp or higher 8 months out of the year, humidity is low for us. Most of the year we're at least 70% humidity and 80% or so common all summer.

I'm looked over the other dyno runs and they were run in Lincoln NE.

All were run at over 80 degrees with fairly low humidity.

This might be some kind of elevation, temp, humidity combo that the bike was setup at but I just have different conditions?  If anything at a higher altitude you would be running richer so if you brought it down to sea level it certainly wouldn't run lean so elevation probably isn't the problem.

[9Ball]

Chances are if you had a jet kit installed in your carbs then you probably have aftermarket needles.  Cobra and FactoryPro jet kits have notches and a clip to shim the needles.

Pull one of your needles and see what position the clip is in.  You can fatten up the mixture by moving the clip. Only do one notch at a time, then check your plugs after riding for a while.  If memory serves me correctly, the Cobra jet kit instructions have you put the clip in the third notch (middle) for carbs 3 through 6 and the second from the top notch for carbs 1 and 2.  These needles have 5 notches.  

If you have stock needles, you can add or remove washers to perform the same function.

[CoreyP]

I just checked the parts box. I have a bag with the original needles and springs.

When I get a chance I will check the needles and see what's going on with them.

If anyone needs some stock Valkyrie parts I may have them. PO kept everything he ever took off the bike.

[9Ball]

I just checked the parts box. I have a bag with the original needles and springs.

When I get a chance I will check the needles and see what's going on with them.

If anyone needs some stock Valkyrie parts I may have them. PO kept everything he ever took off the bike.

Hold on to them...I made that mistake years ago.

[CoreyP]

Anyone know how to get this off the bike without breaking it? I want to check the needles but it doesn't look like a good idea to take the cover off of three at a time. Actually putting them back together maybe a problem. <a href="https://ibb.co/HzNv5Vw"><img src="https://i.ibb.co/T8KX9kj/IMG-20200311-161623955.jpg" alt="IMG-20200311-161623955" border="0"></a>

[CoreyP]

Found something interesting. Everyone of my pilot screws is leaking a little bit of gas, Al of them are wet.

Could that be the problem? Next question is where do you find gaskets for those or does someone know the size?? Is it a good idea to change the springs as well? 

I don't how you guys are adjusting the A/F with the bike running and where these screws are?

[9Ball]

Found something interesting. Everyone of my pilot screws is leaking a little bit of gas, Al of them are wet.

Could that be the problem? Next question is where do you find gaskets for those or does someone know the size?? Is it a good idea to change the springs as well?  

I don't how you guys are adjusting the A/F with the bike running and where these screws are?

Redeyetech at ecrater sells the springs, washers, and o-rings...top notch.  He sells the tool too.

His complete carb rebuild kit along with his replacement screws makes the job easy.  He’s thought of everything.

If you ever decide to completely rebuild your carbs buy his complete kit.  Great parts and instructions too.

https://redeye.ecrater.com/p/2064102/pilot-screw-sow-kit-fits

I don’t mess with setting them with the bike running, I use service manual baseline.  There is a long reach tool if you want to do this when running.

[Avanti]

I use heat and pull fishing line to release the double sided adhesive that is used to hold emblems on.

[John Schmidt]

Reason for the inline filter is due to extending the length of the pickup tube on the Pingle so as to have approx. the same amount of reserve as the stock petcoc. The Pingle filter was them too short so couldn't be used; solution, install an external inline filter. Been trouble free since day one BUT you need to be careful how you install it.

I don't understand that completely. My pingle has a tube with mesh filter intake that is pretty long. I don't see why that part would be a problem? I don't know what model or year mine was installed but it looks close to the stock intake tube length wise

What do you mean by carefully installed? Mine is simple, petcock about an 2 inches of fuel line, fuel filter then a taught fuel line from there. I have very little slack. Just getting the fuel line off of the petcock was not so easy and reinstall was kind of tricky because of the lack of slack.  I assume that's a good thing for fuel pressure.

BTW I haven't had this bike over 85 and haven't noticed any fuel starvation.  I think my days of 100+ are over so I'm not worried about that. I would like the bike to be capable of what it is capable of. The bike by looking at the plugs is running lean and I'm trying to figure that out. That's the real problem I'm trying to figure out one step at a time.

Corey, first thing....it appears the installation you describe is ok. Many have installed inline filters and allowed a "droop" in the fuel line, that causes starvation problems....especially with low fuel levels in the tank. As for understanding my explanation, if you looked at the length of the pickup tube on the Pingle it's shorter than the OEM unit. That gives less reserve which I didn't like so I extended the pickup tube on the Pingle to match that of the OEM unit, thereby giving roughly the same reserve as with the OEM petcock. Only problem is, that made it too long for the filter that came with the Pingle, hence the installation of an external inline filter. Click on the link and you'll see where I soldered the additional length on the Pingle pickup tube. That's much too long for the filter they provided.

http://vrcc.photostash.com/vrcc_18944/Pingel%20fix.jpg

[9Ball]

I use heat and pull fishing line to release the double sided adhesive that is used to hold emblems on.

Huh?

[CoreyP]

For now I'm in hold mode. I ordered a new air filter, mine was probably 20% clogged up, I'm going to de-smog to get rid of possible old age vacuum leak problems, ordered new springs/gaskets for the pilot screws and a D-wrench to set the A/F mixture if needed. Going to check the needles to see what I have going on there. In the end this will take a week.   After I have that all figured out I'll work on getting the lean fuel mixture under control.

[Avanti]

I use heat and pull fishing line to release the double sided adhesive that is used to hold emblems on.

Huh?

CoreyP
Wanted to know how to remove the F6 Emblems on the top of the carburetors.
https://i.ibb.co/T8KX9kj/IMG-20200311-161623955.jpg