Quote:
Originally Posted by Ryland
At least the stock VX engine will not run right with an over sized exhaust and over sized or leaky exhaust will destroy o2 sensors on the VX very quickly.
The engine sounds like the timing is off...
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I read that to but My O2 is still good as it runs worse with it unplugged. I checked the timing with a timing light and I zeroed it out, white line on crank pulley. I figure even with the leak big exhaust if should still get better than 12 mpg like in the vid.
My mpg's have gone down to 12mpg as of yesterday. First time out the engine started at 28mpg, 2 weeks ago, then 17mpg last week, and if my math is correct 12mpg as in the video. What could cause this dramatic and quick decline in mpg.