How can I reset that meter to test the MPG with a fresh tank of gas?
I'm pretty much doing 1K RPM every 10mph. So around 4K RMP for 40MPH, 5K RPM for 50MPH etc. In terms of brake binding, I really hope that isn't the issue...again!View attachment 95476 View attachment 95477
12k Miles. What RPM is your engine doing at 40, 50, and 60 MPH?
Have you checked the belt lately? Just a possibility, "slippage".
Or binding brakes.
I've found the computer thingy to be uncannily accurate based on my own "fill and burp the tank", to reserve and refill back to full.
I get a consistent 16.7 miles per litre. Which google tells me is 63 US mpg. I don't treat it gentle either!
I'm pretty much doing 10K RPM every 10mph. So around 4K RMP for 40MPH, 5K RMP for 50MPH etc.
Abner, thanks for the info. You describe it pretty well but do you know if there are any videos of this procedure? I don't remember Mitch doing this and I've glanced at all his B400 videos. Something is definitely not right...I don't think my bike's #s are off becauae it actually feels like I have to fill up too oftenMy 2008 shows 67 to 69 all the time. I've been chasing fuel pump system problems for the last 2,500 miles. I test the fuel pump flow at prime every 200 miles. I've checked my mpg every 200 when I fill up the tank as well. I am actually getting 72 to 73. I have no idea how that instrument panel works at figuring your mpg. Pull your fuel line at the injector. It's under the black plastic panel you remove to get to your air filter. Put it in a clean jug, and turn your key on. The prime last a little over 2 seconds. Measure in ml how much you get. Do this a couple of times. Let me know what you get. These bikes have a well documented problem with the built in filter near the pressure regulator clogging and diminishing your fuel flow.
I don't know of any videos. To test the flow it is real simple. Scooter on center stand, lift the seat and remove the two push pins holding the black plastic air filter access panel in place. Remove the panel. Remove the two allen bolts holding the fuel line into the top of your engine. Have a rag. You will squirt half a thimble of fuel. Put this end into a clean bottle. I use an empty 1 qt. Lucas Fuel Treatment bottle. Turn your key on. Pour contents into a small beaker marked in ml. Do this a couple of times. With a brand new fuel pump, filter sock and new inline 10 micron wix filter, my bike squirts about 85ml at prime. Back in January my scooter wouldn't accelerate over 40 one day. I did the inline filter modification, and didn't want to stick back in a 13 year old pump with 17,000 miles so I replaced it with a $17.00 Caltric. The first Caltric pump burnt out after 800 miles. The second one burnt out after 600. I installed a Mostplus pump (supposed to have a lifetime guarantee) that was $13.00. I've been golden for the last 2,400 miles. I would add 2 oz of Redline fuel system cleaner every 200 miles when I would fill up. I did this until the whole bottle was gone.Abner, thanks for the info. You describe it pretty well but do you know if there are any videos of this procedure? I don't remember Mitch doing this and I've glanced at all his B400 videos. Something is definitely not right...I don't think my bike's #s are off becauae it actually feels like I have to fill up too often
Got to use your feet once in a while like Fred Flintstone.Wow, low 70s fuel economy is pretty amazing for the 400. My Helix 250 only gets around 65 mpg, 171cc SYM gets mid 70s. Both carbureted though. Had a 650 V-strom that I could squeeze out mid 60s if I babied it, so that didn't happen very often.