Miles on a Full Tank? - Suzuki Burgman Forum
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post #1 of 49 (permalink) Old 11-14-2016, 09:57 PM Thread Starter
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Miles on a Full Tank?

How many miles can be achieved on a full tank on a B400 on average?

I am thinking around 160 miles. I could be wrong... or my bike's just so thirsty.
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post #2 of 49 (permalink) Old 11-15-2016, 12:01 AM
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I can usually count on 200+ miles per tank, even at my worse mileage (55 mpg X 3.6 gallon tank). But I usually fill up around 180.

I'm not that small, so if you're getting worse mileage, there may be an EFI problem.

FYI, you can't count on the bike's computer to calculate the mpg, it's usually minus 2-3 mpg off. You need to use the tripometer / gallons used. I reset mine with every fill-up. The tripometer isn't exactly accurate either; depending on tire wear, it's around 2% off, but it's about the most reliable & accurate meter on the bike. So it's the best one to utilize.
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post #3 of 49 (permalink) Old 11-15-2016, 01:13 AM Thread Starter
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Llajms - Thank you for sharing! It appears as my bike needs some tuning. I just bought it on 11/13/2016. With no known maintanence history.
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post #4 of 49 (permalink) Old 11-15-2016, 01:47 AM
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Llajms - Thank you for sharing! It appears as my bike needs some tuning. I just bought it on 11/13/2016. With no known maintanence history.
Check the muffler connector first. It's a small tubular gasket between the muffler and exhaust pipe. It needs to be replaced with every tire change and is easy to miss as they get brittle and disintegrate when the muffler is removed. My tire guy missed it the first time.

If it wasn't replaced, it could be letting in extra O2 right where the sensor is located, making the efi read high O2 levels. The EFI will compensate by enriching the fuel mixture. Hence worse fuel economy. Easy fix, just replace the connector. $18 for the part and labor which is minimal.

Its easy to diagnose too. You'll hear a popping sound by the connector if it's bad or not there.

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Ingrid - '07 Blue Burgman 400 (56k mi) - original owner
Jesse - '05 Silver Burgman 650 (27k mi) - 3rd owner

Last edited by Liamjs; 11-15-2016 at 01:58 AM.
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post #5 of 49 (permalink) Old 11-15-2016, 07:38 AM
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The fuel gauge is not linear. It is hard to imagine you would ever get less than 200 mpt. You have 60+miles of range left after your gauge needle touches the red zone at the empty end of the fuel gauge (thanks davej). I typically get to that point between 150 and 160 miles. Most I have ever put in a tank, 3.47 gallons (US).

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post #6 of 49 (permalink) Old 11-15-2016, 08:01 AM
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I'm in the same range as Panda, and there is nothing wrong with my bike.
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post #7 of 49 (permalink) Old 11-15-2016, 08:41 AM
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I've never got anywhere near as low as 160 miles per tank.

I've done 200 on a tank but don't usually let the level get that low - it isn't something I rely on in an area I don't know well.
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post #8 of 49 (permalink) Old 11-15-2016, 10:29 AM
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Quote:
Originally Posted by Liamjs View Post
Check the muffler connector first. It's a small tubular gasket between the muffler and exhaust pipe. It needs to be replaced with every tire change and is easy to miss as they get brittle and disintegrate when the muffler is removed. My tire guy missed it the first time.

If it wasn't replaced, it could be letting in extra O2 right where the sensor is located, making the efi read high O2 levels. The EFI will compensate by enriching the fuel mixture. Hence worse fuel economy. Easy fix, just replace the connector. $18 for the part and labor which is minimal.

Its easy to diagnose too. You'll hear a popping sound by the connector if it's bad or not there.
LLiamjs....A little off topic: I had rear tire replaced on a Honda Reflex by a dealer here in SD. He threw the exhaust pipe gasket away and put on a radiator hose clamp. It worked so well that it was a month before I discovered what he had done! Later I sold the Reflex with the clamp still on.
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post #9 of 49 (permalink) Old 11-15-2016, 11:12 AM
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I get around 180 miles before I start looking for fuel but I can go to over 200 miles before I'm on the red zone proper. I think if I were to run it dry (never recommended as the fuel cools the fuel pump) I could easily go 240+ miles on a full tank. I don't ride slow either. I average 78-80mpg (imperial Uk) and on a longer run at 70mph I get 82+mpg. Panda, make sure your airfilter is clean and you have a good spark plug in there. Make sure the transmission air filter is clean too. Don't overfill the oil level in the engine either as that, amongst other things, costs mpg's.

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post #10 of 49 (permalink) Old 11-15-2016, 11:46 AM Thread Starter
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Quantum - Thanks for the advice! I plan on checking the oil and the air filter this week and save up $ for major overhaul of the insides of the bike over time (such as replacing DPS, clean & wash the components of the engine, check valves while I am at it, and other things on the list I have planned.

As of right now, I average 59 MPG (US). It has an engine wobble feeling between 0-50 MPH. At 50+ MPH, the wobble goes away. Not sure if this is normal for a Burg. I noticed that the RPM averages as below (Trying to remember at the top of my head):
Idle: 2000 RPM
10-30 MPH: Unable to recall
40 MPH: 5000 RPM
60 MPH: 6000 RPM
70 MPH: 6500 RPM
80+ MPH: Unable to recall

Let me know if this ties with the fuel consumption. If so, I will research for a thread on this or start a new one.

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