I am only getting about 70 miles out of a tank before hitting reserve. I live in GA and have a wind shield but it still seems I should be getting more out of a tank full. Is this normal or do I need to get something done about it?
My 03 I get about 90-95 before reserve,just put stock exhaust back on and going to go thru the carbs, hoping to get better mileage after that.
I would say no that is not normal. The worst I ever got was just over 90 miles on a tank. On that tank the tachometer was never below 6500 and most of the time around 7500. We where on a trip and I guess we where ready to get back to Dallas.
Quote from: Magnum Magna on April 05, 2010, 05:01:36 PM
I would say no that is not normal. The worst I ever got was just over 90 miles on a tank. On that tank the tachometer was never below 6500 and most of the time around 7500. We where on a trip and I guess we where ready to get back to Dallas.
Yea, sure, Robert -- but look at the size of your tank!!
With my stock tank, the least I have ever ridden to reserve is 96 miles on the blue bike. I don't have enough history on the red bike to quote a mileage number.
Quote from: Sladar on April 05, 2010, 04:03:20 PM
I am only getting about 70 miles out of a tank before hitting reserve. I live in GA and have a wind shield but it still seems I should be getting more out of a tank full. Is this normal or do I need to get something done about it?
If you are at speeds of 85 mph and up that could be normal, if you run around 70 mph, not so normal. Elaborate on your style of driving, hwy verses city.
Not normal I useally don't hit reserve until about 125 or 130.
Quote from: lragan on April 05, 2010, 05:39:36 PM
Yea, sure, Robert -- but look at the size of your tank!!
With my stock tank, the least I have ever ridden to reserve is 96 miles on the blue bike. I don't have enough history on the red bike to quote a mileage number.
That was with the stock tank.
What mods have been done to the bike.. Pipes, jets, air cleaner...
I have a '94.. I used to get consistent 40-42 MPG (reserve between 90/100 miles)
For some reason of late I've been getting closer to 50 MPG (51 & 52 on two tanks on Sunday)...
One other detail.. How full do you fill your tank??? I take the time to fill into the neck, some only fill to the bottom of the neck.. This can make about a third of a gallon of difference, it doesn't sound like much, but that's about 12-15 miles of difference..
I was Haulin' butt one time running about 85 for a tank and I think I hit reserve between 85 & 90 miles (that's when I was normally getting 40MPG)
SO, I would say NOT NORMAL, but we need some more details so we can make suggestions about what might be the issue..
I usually hit the reserve at 96 mile or so. I've gone a couple of times up to 112 miles. I ususally make short trips and hit the throttle a bit when I ride. On the longer 3 hour plus rides I got 112 then refueled before switching to reserve.
Quote from: Magnum Magna on April 05, 2010, 08:33:40 PM
Quote from: lragan on April 05, 2010, 05:39:36 PM
Yea, sure, Robert -- but look at the size of your tank!!
With my stock tank, the least I have ever ridden to reserve is 96 miles on the blue bike. I don't have enough history on the red bike to quote a mileage number.
That was with the stock tank.
I was just tweaking you a bit, Robert. I am jealous of your big tank...
Quote from: Jerry G Turner on April 05, 2010, 07:25:08 PM
Not normal I useally don't hit reserve until about 125 or 130.
Alright Jerry what is your secret?
Probably shifting at 15,25, 35, and going no faster than 45, lol :)
I typically ride in the GA mountians. I always fill-up on the kick stand and don't stand the bike up while filling due to spillage. I have stock pipes that I have taken the baffles out and no carb or air filter mods. It's about as stock as you can get. I ride back roads mostly and don't tend to get on it to much. 40-50mph through curves and 70mph on highways, if I have to get on one.
Quote from: tmds3 on April 06, 2010, 05:22:58 PM
Quote from: Jerry G Turner on April 05, 2010, 07:25:08 PM
Not normal I useally don't hit reserve until about 125 or 130.
Alright Jerry what is your secret?
I know Jerry's secret but I am not telling.
Robert will tell you that my speedometer is off and it is a little bit but I have checked it with a gps and it is not off much so maybe its 120 to 125 when I hit reserve, and true I am not an aggressive rider but I hit the shift points a little higher than what was suggested, but figure 2.8 gallons at 45 mpg and you get 126.
Quote from: Sladar on April 06, 2010, 08:46:40 PM
I typically ride in the GA mountians. I always fill-up on the kick stand and don't stand the bike up while filling due to spillage. I have stock pipes that I have taken the baffles out and no carb or air filter mods. It's about as stock as you can get. I ride back roads mostly and don't tend to get on it to much. 40-50mph through curves and 70mph on highways, if I have to get on one.
Sladar
You have successfully untuned your engine. Relieving back pressure without any other mods will give poor performance and bad mileage. If you can put the baffles back in you will probably see the mileage jump back to near normal. Now, I'll be quiet and see what the experts suggest.
My normal was also 115 to 125 to reserve when riding conservatively for the entire tank. Lately I have been riding a little more aggressive making sure not being in someone's blind spot.
Yes I was teasing Jerry a little about the speedometer being a little off. :P
Quote from: Slydynbye on April 07, 2010, 09:10:53 AM
Quote from: Sladar on April 06, 2010, 08:46:40 PM
I typically ride in the GA mountians. I always fill-up on the kick stand and don't stand the bike up while filling due to spillage. I have stock pipes that I have taken the baffles out and no carb or air filter mods. It's about as stock as you can get. I ride back roads mostly and don't tend to get on it to much. 40-50mph through curves and 70mph on highways, if I have to get on one.
Sladar
You have successfully untuned your engine. Relieving back pressure without any other mods will give poor performance and bad mileage. If you can put the baffles back in you will probably see the mileage jump back to near normal. Now, I'll be quiet and see what the experts suggest.
I agree by taking the baffles out you increased the air flow and you are probale running rich now.
no, if anything, hes way to lean. the bike is lean from the factory and by taking out the baffles, it leans things up even more than before.
My mistake way to lean not to rich.
Quote from: Jerry G Turner on April 07, 2010, 04:09:24 PM
My mistake way to lean not to rich.
I'm neither:
"way to lean"
or
"way to rich"..
Just ask my belt, my wallet, or my wife!!! :lol:
And I can't remember if I have baffles or not..
Quote from: hootmon on April 07, 2010, 04:26:19 PM
And I can't remember if I have baffles or not..
Well, the whole topic is rather baffling...
Like I said Experts....but at what? Baffling BS? Bubbly Bacon ?
I would agree that removing the baffles would change the back pressure and affect the performance, but I would bring it to your attention that unless you are actually removing the baffles that are welded up inside the muffler and not just removing the resonator or end plate you aren't really changing the pressure just the sound. My wife's Magna has every mod from cutting off the resonator to removing the whole end plate without changing the fuel milage, but the Cobra Drag pipes with no baffles dropped her fuel milage approximately 5 mpg.
Quote from: Charles S Otwell on April 09, 2010, 12:48:27 PM
I would agree that removing the baffles would change the back pressure and affect the performance, but I would bring it to your attention that unless you are actually removing the baffles that are welded up inside the muffler and not just removing the resonator or end plate you aren't really changing the pressure just the sound. My wife's Magna has every mod from cutting off the resonator to removing the whole end plate without changing the fuel milage, but the Cobra Drag pipes with no baffles dropped her fuel milage approximately 5 mpg.
At last -- real data!
Thanks, Charles
So if it is just the resonators being removed then no carb modifications need to be done? I bought mine with the resonators out already and wondered if the person did any carb work on it also.