Fuel range off after tank upgrade!?
Thread Starter
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Tourer
Joined: Sep 2022
Posts: 439
Likes: 73
From: Ireland
70900817
Last edited by murphc13; Mar 6, 2024 at 08:32 PM.
Thread Starter
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Tourer
Joined: Sep 2022
Posts: 439
Likes: 73
From: Ireland
I'm talking about the fuel gauge reading incorrectly after upgrading to the 5 gallon tank.
HDF Community Team
Joined: Oct 2018
Posts: 4,347
Likes: 3,392
From: Seattle
Oh The pics show you already have the fat boy console pieces just in black.
FatBob2018 was saying you'd have to find a way to mount the Fat Boy/Sport Glide gauge, and I was suggesting you can just get the center console to mount the gauge in.
I couldnt tell if those pics in your reply are of your bike or not.
And yeah I have a 2018 Fat Boy 114.
FatBob2018 was saying you'd have to find a way to mount the Fat Boy/Sport Glide gauge, and I was suggesting you can just get the center console to mount the gauge in.
I couldnt tell if those pics in your reply are of your bike or not.
And yeah I have a 2018 Fat Boy 114.
Thread Starter
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Tourer
Joined: Sep 2022
Posts: 439
Likes: 73
From: Ireland
Oh The pics show you already have the fat boy console pieces just in black.
FatBob2018 was saying you'd have to find a way to mount the Fat Boy/Sport Glide gauge, and I was suggesting you can just get the center console to mount the gauge in.
I couldnt tell if those pics in your reply are of your bike or not.
And yeah I have a 2018 Fat Boy 114.
FatBob2018 was saying you'd have to find a way to mount the Fat Boy/Sport Glide gauge, and I was suggesting you can just get the center console to mount the gauge in.
I couldnt tell if those pics in your reply are of your bike or not.
And yeah I have a 2018 Fat Boy 114.
Cruiser
Joined: Feb 2020
Posts: 223
Likes: 39
From: Uniontown, PA
Hello people.I recently swapped my 22 Fat Bob fuel tank to an M8 Sport Glide/Fat Boy tank which I believe is 18.9 litres or 5 gallons(The stock tank is 3.5/6 gallons).However it still reads 230kms after filling up.I spoke to a friend with a Sport Glide and his reads 335kms remaining at full capacity.Is this something a dealer can sort out?The fuel pump is the stock Fat Bob unit if that matters.
Grand HDF Member
Joined: Nov 2017
Posts: 4,251
Likes: 3,134
From: Texas
Yeah, if you're using the 5-gallon tank with a 5-gallon gauge from a Fat Boy, then it should definitely be working together so I can only assume that the problem is the 3.6-gallon fuel sender from the Fat Bob's fuel pump.
All my comments prior were assuming that you were using the Fat Bob's fuel gauge. Using the Fat Boy's is a whole different thing.
A new 5-gallon fuel pump assembly with sender is probably the answer to the problem, but please do keep us posted on what they say.
All my comments prior were assuming that you were using the Fat Bob's fuel gauge. Using the Fat Boy's is a whole different thing.
A new 5-gallon fuel pump assembly with sender is probably the answer to the problem, but please do keep us posted on what they say.
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Thread Starter
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Tourer
Joined: Sep 2022
Posts: 439
Likes: 73
From: Ireland
Im planning on a 5 gallon tank swap on my 21 bob myself, but from what i gather the fuel reeding will be off if i use my 3.5 pump since the sending unit on the pump that moves up and down to indicate how much fuel is different than the 5 gallon tank pump sending unit. Im pretty sure this is the case, since this was the case with another member who made a comment awhile ago about it correcting his reeding.
Thread Starter
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Tourer
Joined: Sep 2022
Posts: 439
Likes: 73
From: Ireland
Yeah, if you're using the 5-gallon tank with a 5-gallon gauge from a Fat Boy, then it should definitely be working together so I can only assume that the problem is the 3.6-gallon fuel sender from the Fat Bob's fuel pump.
All my comments prior were assuming that you were using the Fat Bob's fuel gauge. Using the Fat Boy's is a whole different thing.
A new 5-gallon fuel pump assembly with sender is probably the answer to the problem, but please do keep us posted on what they say.
All my comments prior were assuming that you were using the Fat Bob's fuel gauge. Using the Fat Boy's is a whole different thing.
A new 5-gallon fuel pump assembly with sender is probably the answer to the problem, but please do keep us posted on what they say.