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  Topic Review (Newest First)
08-21-2012 01:47 PM
Wolfie
Quote:
They work off diffrent gearing
Didnt know that...thanks for enlightening...I was just goung by what most speedo/odos do...
...so, if you put on a 110 on the front, yer odo will be off then ? (show fewer miles than actual)...

...and dude...is that a Family Guy avatar ?......nooooooooooooooooooooo....



08-21-2012 01:58 AM
TimV65
Quote:
Originally Posted by Knifemaker View Post
... I can go out next week and try the same thing over the same course....and come up with diffrent numbers. So going by one ride, of one (small) tank is not a fair measure of ones MPG average.
Agreed... Same day, almost same route, wife & I did have a nice lunch before our return... 48 MPG out ... 45.5 MPG on the return. Although, we did cruze slow around a lake on the return too. If you enjoy it and it's running well, no worries. If your plugs are black, do something about it.
08-21-2012 01:35 AM
akrider Adjust you Idle speed.
08-20-2012 09:46 PM
Knifemaker
Quote:
Originally Posted by Wolfie View Post
Thats another thing nobody mentioned...since the speedo is off, the odo is also off (ergo, MPG is off)...so, a bike with 20,000 showing, will probably only have an actual of 19,500....Im sure there's a formula that can be used, but dont care enough to figure it out, lol...too busy ridin'.....
Incorrect. The odometer is in fact pretty correct, only the speedometer is off by 10%. This has been verified by several members using GPS units and highway mile markers.

Why the odometer is good and the speed reading is off is odd, but not impossible.... They work off diffrent gearing.

No one uses the speedometer to figure MPG anyway... So if after SEVERAL tanks you come up with a 42 mpg average, it's likely vary accurate.

KM
08-20-2012 09:19 PM
Wolfie
Quote:
Your milage is off with the original size tires.
Only for the front tire, , since thats where the drive is...rear tire size is irrelevant...albeit a smaller OD rear, will make the engine turn more more, higher RPM, and cause bad milage/ more fuel consumed...a 110/90 brings the front tire closest to accurate...
So, to get the best fuel milage from the Vulcan, increase the total OD of the rear, and same with front to be able to accurately measure.



08-20-2012 08:15 PM
weh44att In all to be fair with the stats. You have to take in the fact if your bike has the original size tires, or the over size tires. Your milage is off with the original size tires.
08-20-2012 04:27 PM
Wolfie Hey Pitt...check yer plug condition too...if theyre a milk n coffee brown, yer runnin good...if a lil on the darker side, try going back to stock jets...
Mine are a lil whitish, but thats my choice since I lug the engine a lot...I opened the gap a lil, and theyre now a "light milk and coffee", lol....perfect !...

BTW...filled up today, and I was getting 61 mpg...minus the speedo/odo error, so prolly 58....

Thats another thing nobody mentioned...since the speedo is off, the odo is also off (ergo, MPG is off)...so, a bike with 20,000 showing, will probably only have an actual of 19,500....Im sure there's a formula that can be used, but dont care enough to figure it out, lol...too busy ridin'.....



08-20-2012 04:22 PM
Byorec I did the ear shave first, then added the V&H Cruzers, I ride about 55 miles round trip to work and get an average of about 43mpg. Thats 20 miles at 75 and 30 miles at 70 and 5 miles at 40. When it was stock I was getting ~45mpg. I did my mods for appearance, and the minimal 2mpg loss wasn't enough to worry about.
08-20-2012 03:36 PM
Knifemaker
Quote:
Originally Posted by Knifemaker View Post
So just to be clear, you are saying with the Bigger main jets and riding with the throttle almost wide open you are burning more fuel?


Just to be even clearer....the above was meant as a JOKE......

(Much in the same vein as saying.."so after hitting yourself in the head with a brick several times you get a headache????)

08-20-2012 02:32 PM
thtanner Let me repeat this one more time, regardless of what God himself told you, you do not need to rejet for V&H pipes on the VN750.

Bigger main jets = richer mixture at 50%+ throttle = more fuel usage.
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