M8 Fuel consumption?

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Dec 25, 2020 | 04:23 PM

#11

Ramimator

Thread Starter

Intermediate

Joined: Nov 2019

Posts: 33

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From: Belgium

Quote:

Originally Posted by Nelyon

I have a 107 with WM822X cam, Bassani Road Rage and Dynojet PV tuner and I get 45-55 mpg regularly and I’m not light on the throttle, 20 something mpg doesn’t sound right at all

I thought so, I should pay a visit to the dealership, I just wanted to have opinions before they say “it’s normal”

Dec 25, 2020 | 04:24 PM

#12

Lammy1000

Cruiser

Joined: Apr 2020

Posts: 182

Likes: 80

From: Northeast USA

2020 Sport Glide, 107, 8k miles. Stock except for Rinehart muffler. Backroads with very little highway = 49mpg.

Dec 25, 2020 | 04:25 PM

#13

Ramimator

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Intermediate

Joined: Nov 2019

Posts: 33

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From: Belgium

Quote:

Originally Posted by CoolBreeze3646

That is kinda low, I get around 35 MPG on my 2019 Trike and it has more frontal surface area and a few more pounds weight than your bike. What kind of gas are you using and what octane?

Might want to run a compression test to see if there is an issue.

I use Octane 98, most probably I should go to the dealership, now that you all agree that this is not normal

Dec 25, 2020 | 04:26 PM

#14

Pragmatic

Road Captain

Joined: Oct 2014

Posts: 573

Likes: 1,693

From: Oregon City OR

Quote:

Originally Posted by Ramimator

yes a dynojet powervision tuner

Have you ran the auto tune program on your PV?

Dec 25, 2020 | 04:26 PM

#15

Ramimator

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Intermediate

Joined: Nov 2019

Posts: 33

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From: Belgium

Quote:

Originally Posted by Lammy1000

2020 Sport Glide, 107, 8k miles. Stock except for Rinehart muffler. Backroads with very little highway = 49mpg.

Ohhh okay that’s a huge difference, now I am pretty sure something is wrong

Dec 25, 2020 | 04:29 PM

#16

Ramimator

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Intermediate

Joined: Nov 2019

Posts: 33

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From: Belgium

Quote:

Originally Posted by Nelyon

Have you ran the auto tune program on your PV?

Yes, I actually did 6 autotune sessions

Dec 25, 2020 | 04:30 PM

#17

CoolBreeze3646

Seasoned HDF Member

Joined: Aug 2006

Posts: 24,528

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From: Pennsylvania

Probably need a better tune and as previously stated run an auto tune to see if there is any improvement. Probably running way too rich.

Dec 25, 2020 | 04:41 PM

#18

Iceman24

Seasoned HDF Member

Joined: Sep 2009

Posts: 25,310

Likes: 2,446

From: Eastern NE

How do the ends of your exhaust look...black/sooty?

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Dec 25, 2020 | 04:48 PM

#19

Uncle G.

Seasoned HDF Member

Joined: Jun 2010

Posts: 9,332

Likes: 3,873

From: Upstate New York

‘19 Heritage, bone stock, I average 48-52 MPG in all around riding. Then again I ride like the old man that I am.

Dec 25, 2020 | 06:36 PM

#20

Ramimator

Thread Starter

Intermediate

Joined: Nov 2019

Posts: 33

Likes: 4

From: Belgium

Quote:

Originally Posted by Iceman24

How do the ends of your exhaust look...black/sooty?

a little black powder

Quote:

Originally Posted by CoolBreeze3646

Probably need a better tune and as previously stated run an auto tune to see if there is any improvement. Probably running way too rich.

I ran an autotune 6 times now and everytime I have higher and different VE maybe that’s normal

Quote:

Originally Posted by Uncle G.

‘19 Heritage, bone stock, I average 48-52 MPG in all around riding. Then again I ride like the old man that I am.

yes me too, it’s not like I twist the throttle much and my max will be 3500 rpm

Frankly I am surprised by the numbers you all posted, even when it was stock I don’t remember that I have ever pass 35 mpg will definitely have to check with the dealership. I hope it’s not that serious.

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