Tell us more about how the bike performs. Are you able to cruise at highway speeds, or is it low on power, too?Ive had it about 6 months. It's been a problem since I got it. I changed the spark plugs and cleaned the carb when I got it. I was thinking there might be blockage in the fuel line.
It is completely stock. I have not checked the tank but I but I have been adding tank and engine cleaner everytime the tank is empty.
Hahah that's a good one, i've yet to see a used bike that is "stock" (ie set up as it was when it rolled out the factory) and to be honest I don't think they exist, only the bikes with 1 owner and maybe a year or two of fair weather riding are like thatCompletely stock. Hmmmmm. This is a conundrum. How certain are you that it completely stock? I'm assuming it has the stock air box and exhaust on it. If so, I would imagine the carburetor has not been rejetted.
Your speeds sound about right for stock. My bike I ran for about as complete a tank as can be done, with the throttle pegged, running right at 72 mph, and averaged about 56 mpg.
So if you're running WOT a lot, and starting and stopping frequently, running WOT up through the gears, 50 mpg is probably reasonable. Because my 56 mpg was NO STARTING AND STOPPING. It was WAO the whole time.
The only other thing I could think of, if your bike is totally stock is, maybe you have a brake slightly dragging?
My guess is that if you ran a tank as conservative as you can, and held it to 45 - 50 mph, you mpg would soar. 45-50 mph at a steady cruise in 5th gear, the AFR is as lean as it's gonna get, and covering lots of ground.
You're probably right. Mine was 3 years old, 44 miles, and I don't know how many times dropped … but at least twice.Hahah that's a good one, i've yet to see a used bike that is "stock" (ie set up as it was when it rolled out the factory) and to be honest I don't think they exist, only the bikes with 1 owner and maybe a year or two of fair weather riding are like that
Hah, it's always like that when you think you've found the perfect used bike but it turns out to be neglected and disused, as was the case with mine. Mine's done barely 2000 miles in over a decade.. The OP is talking about 15,000+ miles stock, I don't think he knows his bike that well yet, no bike is stock at that mileage.You're probably right. Mine was 3 years old, 44 miles, and I don't know how many times dropped … but at least twice.
I'd imagine the spark plug would give it away, it would be very fouled if this was the case and I don't think the OP has checked that thoroughlyVAReb - That is an excellent thought. Sounds very plausible. I can tell you our choke / enricher is very effective. And that this bike runs very good, even very rich. So yes, that could be the issue.