RzrBak
Well-known member
I recently purchased the MotionPro SyncPro Carburetor Tuner and did the TBS. I wanted to do the "unofficial" TBS using the throttle plate method rather than the air bypass method. After reading the posts on the unofficial TBS method, the question I find myself asking is, "how do I know exactly how much kPa (mm Hg, 9.8" Hg) each line on the MotionPro represents. I've searched Google to see if any information is out there and nothing!
Does (or has) anyone have this tool and if so, can you shed some light on the number each line represents? Yamaha manual specs say that the vacuum pressure at engine idling speed should be 33.3 kPa (250mm Hg, 9.8" Hg).
Does (or has) anyone have this tool and if so, can you shed some light on the number each line represents? Yamaha manual specs say that the vacuum pressure at engine idling speed should be 33.3 kPa (250mm Hg, 9.8" Hg).