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post #1 of 17 (permalink) Old 07-21-2014, 08:21 AM Thread Starter
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Default Fuel JUDGEments?

I tried to dig up an old thread but it was either in a "crossroads" specific thread or archived, so this is here now.

I am noticing a big difference in my Judge fuel consumption lately. About 25% different.

Last year (my first year on a Vic) I kept track and was getting anywhere from 39mpg to 41mpg (more towards the 39 side) so right on par with what gents on the forum are reporting. I started noticing I wasn't getting that trip meter anywhere near what I was last year and did the math. Out of 5 or so tanks I averaged 31mpg, twice it went as low as 29.

I am getting close to an oil change. I ride with a shorty now where i was full faced for most of the year last year (that should make THAT much of a difference).

So what are the things I should be looking for? At this rate when I ride to the big rally labour day weekend I'll be needing gas more then my buddys sportster will. I googled the question and got a bunch of general info that kind of applies, but I thought I'd leave in the hands of the Victory vets. Any help?

I have changed nothing on the bike.

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post #2 of 17 (permalink) Old 07-21-2014, 11:27 AM
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Are you doing the math with your phone or believing what the speed-o tells you. The phone will not lie.
The more you stay under 60 mph the better your mileage will be.
What grade of gas are you buying. Should be 89 or 90.
How much air do you have in your tires.
Are you hot rodding it more

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post #3 of 17 (permalink) Old 07-21-2014, 11:37 AM
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Quote:
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... I have changed nothing on the bike.
Has your riding changed a little? I can get low 30's when I burn a full tank on short trips and around town, with constant acceleration and stopping, and very little crusing. Then I go on a longer highway trip I get mid to high 40's, with the cruise control turned on most of the trip, doing 75ish mph.

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post #4 of 17 (permalink) Old 07-21-2014, 11:55 AM
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The more your tires wear the better your mileage will be come cause there harder and have less resistance. New tires are softer and grip more.
Asphalt will give you better mileage cause its a smoother surface. Cement is a coarse surface and you have to give it more gas to keep the same speed

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post #5 of 17 (permalink) Old 07-21-2014, 12:41 PM Thread Starter
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Originally Posted by visionjohnny View Post
Are you doing the math with your phone or believing what the speed-o tells you. The phone will not lie.
The more you stay under 60 mph the better your mileage will be.
What grade of gas are you buying. Should be 89 or 90.
How much air do you have in your tires.
Are you hot rodding it more
I work the math using how many liters vs the trip meter. So today i filled up. I put 14.2 liters and got 204km thats 14.3 km/l = 33.4 mpg. Which is the best numbers Ive seen in the past 30 days. Tires are as per manual (36 and 40). It has been mostly city kms, but when i was working the math last year it was basically the same style of riding (commuter and weekend trips). The only thing I can think I've changed is now i'm (controlled slow time) engine braking more instead of pulling in the clutch and slowing down. Like I was when I was first getting used to the bigger engine. Which I can totally see drinking more fuel, but 25% more? I haven't seen above 35 this year. If 31/32 ,pg is normal for city riding I'll pay more attention nect time I hit the highway...but it just seems like I'm going 50 to 75km less than I was before. Thats a big difference.

I'm only a few hundred km off my next oil change...I was leaning towards that? Am I out to lunch there?

Thanks guys.

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post #6 of 17 (permalink) Old 07-21-2014, 12:45 PM Thread Starter
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Quote:
Originally Posted by visionjohnny View Post
Are you doing the math with your phone or believing what the speed-o tells you. The phone will not lie.
The more you stay under 60 mph the better your mileage will be.
What grade of gas are you buying. Should be 89 or 90.
How much air do you have in your tires.
Are you hot rodding it more
oh and vj its 91 I use, never ran anything lower.

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post #7 of 17 (permalink) Old 07-21-2014, 01:47 PM
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So your data is mostly based on city miles right now? That'd do it. I can burn through a lot of fuel just running around town, since I use my bike to commute almost every day between March and November. I don't even bother to calculate my mileage, because I know it won't reflect what I can expect in highway miles.

Now, if this is a sharp dip from what you were getting in city mileage before, there may be something going on.

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post #8 of 17 (permalink) Old 07-21-2014, 03:43 PM
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I know there's a lot of variables here, but low 30's doesn't sound positively hateful if doing a lot of stop n go. I don't think I have ever burned an entire tank under those conditions. 8-5 job so the longer weekend rides will always come into play.

I beleive a recent sample put me at about 34-35 mpg. A full week of commuting, I then calculated that up and topped it back off heading out for a long weekend ride. But- that was only about 120-130 miles in that average.

Long shot-- Aside from tire condition, inflation etc already addressed- I didn't see any commentary about spark plugs or maybe the plug wires. Are they getting older? Has the govahment been messing with the fuel formulas up your way? Gotta protect those endangered seagull mites.

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post #9 of 17 (permalink) Old 07-21-2014, 04:10 PM Thread Starter
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Originally Posted by Judge Redd View Post
I know there's a lot of variables here, but low 30's doesn't sound positively hateful if doing a lot of stop n go. I don't think I have ever burned an entire tank under those conditions. 8-5 job so the longer weekend rides will always come into play.

I beleive a recent sample put me at about 34-35 mpg. A full week of commuting, I then calculated that up and topped it back off heading out for a long weekend ride. But- that was only about 120-130 miles in that average.

Long shot-- Aside from tire condition, inflation etc already addressed- I didn't see any commentary about spark plugs or maybe the plug wires. Are they getting older? Has the govahment been messing with the fuel formulas up your way? Gotta protect those endangered seagull mites.
Haha seagulls big enough to feed a family of four out here. I seriously have no idea why there are hungry people here. Fry that shit up.

It does seem noticeably lower than last summers commuter days. And Id say about half a tank is stop and go, the other half a good 100km stretch at a time. I have a few days off coming up so I will gather some better data. For example. I wouldn't worry about gas until close to 300km (commuting or not) on the trip meter. Now its 220km and the light comes on (and it will take 16 liters so its as accurate as that light gets).

Plugs should be fine. Only last season (15000km).

Oil change this week then I will have to make an excuse to go for a nice long rip up the highway to the valley. Put everything as optimum as I can. Then see what happens.

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post #10 of 17 (permalink) Old 07-21-2014, 05:44 PM
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Ok mate youre wirkung KPL. Same as me in OZ
My absolute worst of 14 kpl was riding the wheeks off it two up lay racing against a mates hotrodded Harley. And man I was hammering it! Also got 14 on a stretch of the run home first day I bought the Vegas 100/6 but that was warp speeds.
Normally 17 or 18 KPL absolute best of 20 !
I think there's something abnormal going on. Dunno what it is but I'd start with new plugs. Cant hurt.
Are you coverting to US @3.9 or Can/Imp galls @4.5 lpg

Not that that really matters when we both work litres but the conversion to MPG. Can lose signidicance.

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