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Posted by Brent Duncan
- September 26, 2013, 12:08:04 PMOK talked to a guy i worked with and I'm curious about this being true or not . he told me to stop using petrocanada premium as it has ethanol in it and that could be part of the problem. not if that's the case how do i find non ethanol gas not since ethanol blends seem to be the new trend??
Posted by Brent Duncan
- September 26, 2013, 11:49:12 AMno idle is cool beans, im going to check to see if the odometer is reading correctly and do a quick hiway run.
Posted by nhtrikes
- September 26, 2013, 10:56:56 AMThat throttle adjustment that hangs down between cylinders is standard on the 1500's. Does you bike idle high even after it's warmed up? That is just idle adjustment so won't affect gas mileage while driving. Chugging/knocking could just be too low rpm. Will happen in any gear if you let the rpm's drop too low. Make sure when you fill the tank you fill it to the same level (base of filler cage) each time. You said you were down to just 1/4 tank with only 102km (63mi) on the odometer, not good! Odometer reading correctly?
Posted by Brent Duncan
- September 26, 2013, 10:22:07 AMidles good, accelerates fine, rolles well, exhaust isnt gassy or plugs arent fouled.
the one thing i do notice is under slow acceleration in first it seems pretty knocky, maybe its just me and the engine under load at low rpm chucging allong.
other than that nothing seems off, no lag or sputtering or bogging under acceleration. no smoke of any kind at any time. im going to take the covers off the throttle body cause i do have a ide adjustment knob under the chrome cover, i dont think this is stock i haven heard anyone with this. its a black plastic knob with a hex nut in the center that i can turn to adjust the ide speed on the right side of the bike. or maybe this is stock lol. but cant find it in any break downs online. so maybe more is fiddles with in the throttle body from the previous owner.
Posted by DC
- September 26, 2013, 07:16:00 AMThere's something very disturbing-looking about those goat bladders. 
Posted by nhtrikes
- September 26, 2013, 07:10:35 AMWeird thing is if it was running that rich wouldn't it show up on the plugs and how it runs? Does it seem to be running ok? Good acceleration? Does the bike roll easily on flat surface without feeling any resistance? Have you always had this terrible gas mileage or did this occur after the tuneup? Could be those gremlins, siphoning gas overnight when you're sleeping! Do you have a bell???
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...