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Posted by greenbarn
- September 25, 2013, 20:10:18 PMQuote from: nhtrikes on September 25, 2013, 15:00:04 PM"Air intake sensor, intake air temp sensor...same same..the Drifter has AIT, MAP and BARO, but no O2 sensor. Coolant temp and TPS are also there, but the map is the map. I found, with mine, that the BARO sensor has a HUGE effect on which cell of the fuel map the computer uses. At sea level, running 70 mph and about 70 deg. with stock everything, I was getting 39-41, at 5,000 feet, running (same trip) 75 mph, I was getting a steady 45. Running in the Georgia mountains at Drift-In I was getting over 50, with my home brew air box." - From another string -
Troll, could it be one or several of these sensors that are causing such poor mileage???
Could be any of those - it's just like a car, the ECM takes all those inputs, and makes a decision on how much fuel to add. If it think's it's -20F outside, it dumps a whole lot more fuel than 60F.
Posted by Brent Duncan
- September 25, 2013, 15:09:48 PMthere is 27000km on the bike. im going to check to see if all the plugs are sparking properly in the next day or so as well.
Posted by nhtrikes
- September 25, 2013, 15:00:04 PM"Air intake sensor, intake air temp sensor...same same..the Drifter has AIT, MAP and BARO, but no O2 sensor. Coolant temp and TPS are also there, but the map is the map. I found, with mine, that the BARO sensor has a HUGE effect on which cell of the fuel map the computer uses. At sea level, running 70 mph and about 70 deg. with stock everything, I was getting 39-41, at 5,000 feet, running (same trip) 75 mph, I was getting a steady 45. Running in the Georgia mountains at Drift-In I was getting over 50, with my home brew air box." - From another string -
Troll, could it be one or several of these sensors that are causing such poor mileage???
Posted by nhtrikes
- September 25, 2013, 14:53:09 PMTroll, were you getting as bad mpg as Silverback with your '01 as stock? Even with stock air filter and exhuast, mileage shouldn't be as bad as he is getting with all stock equipment. How many miles on your bike Silverback? Could it be the ECM causing the terrible fuel economy, Troll???
Posted by Troll
- September 25, 2013, 14:45:13 PMIt's actually more like an expansion chamber/collector. Increases exhaust volume (size) without increasing volume (noise). Putting the stock system on my '01, replacing the Peace pipe, actually improved overall fuel economy, not by much, but I keep very accurate records.
Posted by 49Reo
- September 25, 2013, 14:41:33 PMThat description of the goat bladder insides sound more like a resonator than a converter? Don't really see the sense in them
Posted by Troll
- September 25, 2013, 14:19:46 PMOOOOps... I knew that...My mistook. I'll bet it still has no converter...Pull the muffler off, and shine a light into the goat bladder.
Posted by CDNRatMan
- September 25, 2013, 14:17:40 PMTroll buddy.....Edmonton is in Canada......not in the land of OZ.......
Silverback did you buy an Aussie bike?
Posted by Troll
- September 25, 2013, 14:12:11 PMMaybe the Australian version of this bike has a converter, but mine doesn't. I have looked into my goat bladder, and there is NOTHING in there that even looks like a converter. Just 2 perforated tubes leading into the can with one big outlet. I was getting less than acceptable fuel mileage from my '01, and all I really needed to do was open up the intake to let the engine breathe. I have a stock exhaust and my own design air box...I AVERAGED 46 mpg on my trip to Drift-In, over 2,500 miles in 8 days...
Posted by 1SG CAV
- September 25, 2013, 13:40:21 PMHave you checked to see if the goat Bladder (catalytic convertor) is partially plugged. This would cause your fuel consumption to drop. You would notice this by several ways rough idle, poor acceleration, and of course fuel economy, Not sure how you would check it or if you can even find a replacement. Just one of the things I would check though.
Ride with Pride
Posted by Brent Duncan
- September 25, 2013, 13:18:08 PMwell this tank is 94 octane, and i filled it with 13 liters it wasn't on E>
no accessories on the bike.
I'm down to 1/4 tank right now with only 102 km on the display.
no gas smell around the bike, not that i notice.
Posted by nhtrikes
- September 25, 2013, 13:04:13 PMNot sure what the reason(s) could be but that definitely sounds way too low for our bikes. Any smell of gasoline at all around the bike? Leaking? When you say you're only getting 170-190 km (105-118 mi) per tank, is you tank totally empty? How many liters (.264gal) of gas are you putting in when you fill it? I have an '02 1500 and get 46.5 mpg city to 48.5 mpg highway consistently. I have no add-ons, ie. windshield, bags, things that might cause extra drag. But even that wouldn't account for such poor fuel mileage. What grade (oct. rating) of fuel are you using?
Posted by Brent Duncan
- September 25, 2013, 12:12:33 PMwondering if anyone can point me in directions to inspect and possably consider that would effect fuel economy.
here is what I'm experiencing.
2001 drifter 1500
everything stock except punched baffles out of stock exhaust.
changed plugs 2 weeks ago, old plugs looked fine a smidgen white but hardly.
not experiencing any popping or backfiring, just did once on heavy acceleration and fast throttle release.
running ngk dpr7ea-9 spark plugs same as removed.
now my concern is my fuel economy with just city driving is crap.
averaging about 170-190 km per tank, 11km/LT OR about 23-24 miles a gallon.
this to me seems really bad, but maybe its OK for city i don't know.
but if its bellow average can anyone help me as to what i can look into and where i might check for possable things that maybe effecting my fuel economy.