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I have the jiffy pro 4 and love it. No problems yet
Whats the weight on that unit
Got a pro4 only mod I did was switch the throttle from left hand to right, and this year which doing a oil change I noticed that the fitting that screws to tank leaks.
Call Jiffy & get a new regulator. They are being really good about warranty on these. Even replaced mine which was way past warranty,