Help me reclaim my gas mileage! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 29 (permalink) Old 05-10-2010, 11:55 AM Thread Starter
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Help me reclaim my gas mileage!

Hello again!

I made it back from my Kentucky journey and am back home safe & sound. However, I was rather disappointed as I realized after rejetting and the ear shave that I have lost a significant amount of gas mileage. I used to be able to put about 120 miles on a tank before needing the reserve, but on this journey, I was consistently flipping to the reserve tank at 85 miles.. This was extremely disappointing!

In closer observation, I would get roughly 66 miles (average) on the first half tank of gas. Then the second half was drained in roughly 20 miles! I was riding on my own so didn't chance it after I hit the reserve tank, I just made a B-line for the nearest gas station! I am about to be going on a long journey with mostly Harleys who run 150+ miles on a tank. I have been given the pleasure of planning the ride, so I spaced the stops out to about 100 miles each but that may not be acceptable in this state! Not to mention the complaints of the HD riders who will undoubtedly get tired of stopping when they're only half empty.

Any input on how to regain the mileage?

NIL ILLEGITIMUS CARBORUNDUM

Phil aka Art
"Vanessa"
1995 VN 750 (bought as 2nd owner 11/2008)
26,440 miles
MF Battery
Stator replaced (55 Days!)
V&H Cruisers
Relocate rear turn signals
Highwayman Saddlemen bags
Wingerline Highway bars
Ear Shave
Rejet carbs
R/R relocate
Coastered
Kuryakin ISO Duallys all around
HD Heritage seat
12" ape hangers

To Do:
Some sort of new grips
Mirrors
Paint Job- should I do it myself?
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post #2 of 29 (permalink) Old 05-10-2010, 12:00 PM
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Undo what you did. I am back to the ears and the factory goat. I am still coastered. The mileage is better, the noise level is down.

02 honda sabre 1100
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post #3 of 29 (permalink) Old 05-10-2010, 12:17 PM Thread Starter
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I don't think I'll be doing that. Not only did I destroy the airbox to get it out ( I hated that thing at that moment), I think it's much easier to work on the carb with it removed. Also, I prefer the look of the bike without ears. It definitely looks sleeker IMO. I guess if there are no other options I'll deal with it, but that is extremely displeasing. I'm not looking for stellar mileage, but I should at least be able to meet the 100 miles/tank that my friend gets on his 1500 arlen ness custom.

NIL ILLEGITIMUS CARBORUNDUM

Phil aka Art
"Vanessa"
1995 VN 750 (bought as 2nd owner 11/2008)
26,440 miles
MF Battery
Stator replaced (55 Days!)
V&H Cruisers
Relocate rear turn signals
Highwayman Saddlemen bags
Wingerline Highway bars
Ear Shave
Rejet carbs
R/R relocate
Coastered
Kuryakin ISO Duallys all around
HD Heritage seat
12" ape hangers

To Do:
Some sort of new grips
Mirrors
Paint Job- should I do it myself?
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post #4 of 29 (permalink) Old 05-10-2010, 12:21 PM
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I managed to get an air box back in without removing the engine. It was a challenge.
The only thing to do is figure out how to carry more fuel.

02 honda sabre 1100
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post #5 of 29 (permalink) Old 05-10-2010, 12:24 PM Thread Starter
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Anyone ever hear of mounting a bigger tank on these bikes?

NIL ILLEGITIMUS CARBORUNDUM

Phil aka Art
"Vanessa"
1995 VN 750 (bought as 2nd owner 11/2008)
26,440 miles
MF Battery
Stator replaced (55 Days!)
V&H Cruisers
Relocate rear turn signals
Highwayman Saddlemen bags
Wingerline Highway bars
Ear Shave
Rejet carbs
R/R relocate
Coastered
Kuryakin ISO Duallys all around
HD Heritage seat
12" ape hangers

To Do:
Some sort of new grips
Mirrors
Paint Job- should I do it myself?
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post #6 of 29 (permalink) Old 05-10-2010, 12:27 PM
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Yeah, look for bigger tank, I think it was seabee, seabear something like that.

02 honda sabre 1100
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post #7 of 29 (permalink) Old 05-10-2010, 12:31 PM
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post #8 of 29 (permalink) Old 05-10-2010, 01:18 PM
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What did you rejet to? I am getting about 110-115 out of mine. Running 140/40 jets shaved and coastered with cobra pipes. And that is running 75 on the highway, probably could do better going slower.

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post #9 of 29 (permalink) Old 05-10-2010, 01:55 PM
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im runnign 142.5/40 and after the earshave(k and n pods) coster and rejet mine sucks some gas down

If It's Got Wheels I Can Drive It
If It's Got Hair I Can Ride It



K and N Pods
12 inch Aps
Handle Grips
Dual Break Lines
House Of Colors Candy Apple Red
Lowered
Road Pegs
Jetted
Coasters
Custom Exhaust
Red Plug Wires
Neons
Custom Switch Panels
Harley Turn Signals(Coming UPS)
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post #10 of 29 (permalink) Old 05-10-2010, 04:12 PM
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I think you have other issues besides the earshave .I don't know what others on here are getting mileage wise, but I am getting 120 miles before I switch to reserve and taking 2.4 to 2.6 gallons to fill back up with 150 in the rear and 148 on the front jet sizes.I don't have a fuel gauge (sending unit is screwy) so I reset the tripmeter on every fill up,and around 120 miles it is time to go on reserve and I fill back up.I have an earshave and Jardine pipes and have reset the gap on the ignitors to .018. I do have the 170 rear tire and the 110 on the front,I also have the iridium plugs and my mileage goes down to around 35 mpg if I run it 75 to 80 on the four lanes,but other than that it is easy to live with.




If you see it on my bike I did it
VROC#30324
92 vn750(sold)
Current ride 05 1500 Classic FI
lovin' the new scoot



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