• Ciao Guest - You’ve landed at the ultimate Guzzi site. NEW FORUM REGISTRATIONS REQUIRE EMAIL ACTIVATION - CHECK YOUR SPAM FOLDER - Use the CONTACT above if you need help. New to the forum? For all new members, we require ONE post in the Introductions section at the bottom, in order to post in most of the other sections. ALWAYS TRY A SEARCH BEFORE STARTING A NEW TOPIC - Most questions you may have, have likely been already answered. DON'T BE A DRIVE-BY POSTER: As a common courtesy, check back in and reply within 24 hours, or your post will be deleted. Note there's decades of heavily experienced Guzzi professionals on this site, all whom happily give endless amounts of their VALUABLE time for free; BE COURTEOUS AND RESPECTFUL!
  • There is ZERO tolerance on personal attacks and ANY HYPERLINKS to PRODUCT(S) or other competing website(s), including personal pages, social media or other Forums. This ALSO INCLUDES ECU DIAGnostic software, questions and mapping. We work very hard to offer commercially supported products and to keep info relevant here. First offense is a note, second is a warning, third time will get you banned from the site. We don't have the time to chase repeat (and ignorant) offenders. This is NOT a social media platform; It's an ad-free, privately funded website, in small help with user donations. Be sure to see the GTM STORE link above; ALL product purchases help support the site, or you can upgrade your Forum profile or DONATE via the link above.
  • Be sure to see the GTM STORE link also above for our 700+ product inventory, including OEM parts and many of our 100% Made-in-SoCal-USA GTM products and engine kits. In SoCal? Click the SERVICE tab above for the best in service, tires, tuning and installation of our products or custom work, and don't miss our GT MotoCycles® (not) art on the BUILDS tab above. WE'RE HERE ONLINE ONLY - NO PHONE CALLS MADE OR RECEIVED - DO NOT EMAIL AND ASK QUESTIONS OR ASK TO CALL YOU.
  • Like the new V100, GuzziTech is full throttle into the future! We're now running on an all-new server and we've updated our Forum software. The visual differences are obvious, but hopefully you'll notice the super-fast speed. If you notice any glitches or have any issues, please post on the Site Support section at the bottom. If you haven't yet, please upgrade your account which is covered in the Site Support section or via the DONATE tab above, which gives you full site access including the DOWNLOADS section. We really appreciate every $ and your support to keep this site ad-free. Create an account, sign in, upgrade your account, and enjoy. See you on the road in 2024.

How to prevent fuel splashing or shutting off while filling up?

Hazindel

Hazindel

Aviazione Navale #249
GT di Razza Pura
Joined
Jun 23, 2023
Messages
6
Location
USA
I haven’t managed to find a post in this forum talking about it.

I’m guessing there’s some type of baffling in the fuel tank that prevents me from filling up the fuel tank normally. I have to fill it up extremely slowly, if I don’t, fuel splashes out of the tank, or the nozzle shuts off thinking it’s full.

Am I crazy, or is there a way to fix this? I’ve never had this issue with my ‘22 ninja 650, it has a normal fuel tank with no baffling or design inside of it.
 
It’s been mentioned elsewhere, but there isn’t a thread. Yea, it is “a thing.” The only way I’ve found to mitigate the issue is to have the pump nozzle as close to 90 degrees vertical to the tank fill hole, as possible. And, to go slow. Keeping the nozzle as straight up as one can, maximizes the venting space around it in the narrow tank opening. Just my $.02. Still splatters at times - other times not. I just got home from a 3 day ride, and the slow fill ups in the heat, with gear on, had me wishing it would fill quicker🥵. A clever engineer could probably suggest a spot to drill a vent hole or something, but I wouldn’t like the hassle of creating debris dropping inside the tank - or, …removing the tank to do it “properly” 😁. Good luck (to all us owners)!
 
I point he nozzle preferably backwards under the seat front.
And fill slow and carefully.
It takes at most 30s longer to fill the tank, so no real issue.
It’s probably the shallow tank dummy design and should be found on different brands with such tank position.
 
I like to grab some paper towels from the windshield cleaner station and wrap that around the tank opening, surrounding the gas nozzle to mitigate any splashing on the paint.
 
On my V85TT its the same problem, seems like some government agency has deemed it needed to have some stupid fuel tank that you cant fill to the brim. My last three Ducatis, triumph Thruxton and Vstrom 1050XT, you fill just below the locking cap. Also had the same problem with a Harley road glide. Dont understand it but but thinks it will be safer for me...
 
Hazindel said:
I haven’t managed to find a post in this forum talking about it.

I’m guessing there’s some type of baffling in the fuel tank that prevents me from filling up the fuel tank normally. I have to fill it up extremely slowly, if I don’t, fuel splashes out of the tank, or the nozzle shuts off thinking it’s full.

Am I crazy, or is there a way to fix this? I’ve never had this issue with my ‘22 ninja 650, it has a normal fuel tank with no baffling or design inside of it.
Click to expand...
You can try the McCuff. Google it. They give you a choice for sport bikes or V twins. I tried the sport one on my 1400 Cal Touring. Absolutely useless. Maybe I should have gotten the other one. Your results may vary.
 
As Tebax says have the fill nozzle pointing back under the seat there is a vent in the filling tube to let air/vapours out. I can fill at max speed this way and when the pump cuts I just fill the last litre or so slowly.
 
JPC56 said:
As Tebax says have the fill nozzle pointing back under the seat there is a vent in the filling tube to let air/vapours out. I can fill at max speed this way and when the pump cuts I just fill the last litre or so slowly.
Click to expand...
I was going to suggest this. It works on most all modern Guzzis since ~2006 or so. I do it seated on the bike myself, but some people lose their minds over it. ;)
 
I will remember this and try it when the weather cools off enough to take my V85 out.
 
I've found some gas station pumps are fine and others are a pita. I think some station have narrower nozzles or something. So I just go to the stations whose pumps work well. Making sure to aim towards the back like others have said, that seems to help as well.
 
Hazindel said:
I haven’t managed to find a post in this forum talking about it.

I’m guessing there’s some type of baffling in the fuel tank that prevents me from filling up the fuel tank normally. I have to fill it up extremely slowly, if I don’t, fuel splashes out of the tank, or the nozzle shuts off thinking it’s full.

Am I crazy, or is there a way to fix this? I’ve never had this issue with my ‘22 ninja 650, it has a normal fuel tank with no baffling or design inside of it.
Click to expand...
By now you are filling up quickly and sputter-splash free, following the suggestions given already. I haven't noticed, perhaps overlooked, any mention of the drawing of the fuel tank in the replacement parts manual, but if I'm seeing it correctly there is no storage in front of the filler, only back toward the seat, and there appears to be shaping of a frame-bridging shelf just under the filler opening, so the only free-flow space is straight back under the seat. I have a Youtube video of a fill-up following the suggestion to aim the nozzle back, and it works.
 
Last edited:
  • Like
Reactions: BDS
JPC56 said:
As Tebax says have the fill nozzle pointing back under the seat there is a vent in the filling tube to let air/vapours out. I can fill at max speed this way and when the pump cuts I just fill the last litre or so slowly.
Click to expand...

Exactly--clean solution.
 
You must log in or register to reply here.
Back
Top