It is not like you are going to accidentaly drink the mercury or anything. Motion Pro Tyre Pressure Gauge features:Pressure range of 0-60 psi is ideal for checking sport bike tyresHigh quality liquid filled 2.5-inch dial gauge with. Not sure why there is some aversion to the mercury style sync tools. I finally had to replace the rubber tubing after all these years but otherwise they are an excellent tool.
No need for adjustment, calibration or anything else. I still have my same old mercury tube carb-stix circa 1970 that work fine today. The Motion Pro system with the sliding rods might work well but the motion range seems relatively low compared to the mercury tubes. High precision accurate to +/- 0.6 psi Precise digital readout to 0.1 psi Continuous pressure reading, no need to reset when activating bleed valve Four. Other than the fragility of the mercury tubes if you drop them they work well, are very well damped and provide excellent side-by-side "data readout" that is very hard to achieve with the digital or guage systems. I have personally used one of the digital type meters and different setups with gauges and it is very hard to beat the old carb-stix type mercury manometers. Most of the time the mercury is moving so all you can go by is the relative position of the mercury columns.
This is especially true if you are trying to do off idle and part load sync of the throttle linkage at 4000 RPM. No removing the gas tank, we made this too easy. If you have to adjust, MotionPro has a 110 degree 'air/pilot screw driver' that makes it real easy to adjust Intake 2 to match 1. Better than nothing maybe but not by much IMO. To make it easy, to check and know that the bike is correct, not perfect, but correct. Since you are looking for trends in the movement of the mercury columns as much as the absolute value at any given instance a fixed gauge reading when switching from one port/cylinder to the next would be pretty imprecise. Again, do not listen to anyone who says the mercury or liquid ones are inherently better, it's not physically possible.Theoreticall possible with a manifold and four valves so as to open only one spigot at a time to the hard to do a sync that way. In this detailed step-by-step video, Motion Pros Chris Van Andel walks us through the proper calibration techniques and usage of one of our most popular too. Ignoring the GS-911 for now, and just using the MP to do the synch, my take is: Firstly you cannot adjust synch at idle as this function is controlled by the ECU and stepper motors. Either way, after that it's good to go and you can trust that your carbs will be properly sync'd. I have both a GS-911 and Motion Pro manometer. If you wanted to get particular you could even use a vacuum pump as the standard for your calibration test. Then just test all the other gauges on that same carb and note any differences from the reading you got on the first gauge (+ or - relative to the control). Close down the damper until the needle is nearly still and note the reading. Connect a gauge to one of your carbs and run it slightly above idle until it gives a consistent reading for a little while. Second, they say they're not calibrated or consistent. First, the needle flutter- this can be solved very simply by using a sync with dampers, which the $50-$100 options from companies like MotionPro have. Don't listen to anyone who tells you the needle-gauge sync tools are garbage, they're afraid of a couple very simple variables. There was another thread on the Carbtune that questioned its accuracy. I just went through the same thing a week ago. The Mercury and murcery replacement manometers like the Motion Pro SyncPRO and the Mercury carb sticks will always show true vacuum, until the earths gravity changes. FOR SALE Digital Tire GaugeHigh precision, accuracy up to +/- 0. In the event excess vacuum was placed on the SyncPRO, fluid from all four chambers may be drained from the reservoir. Stolen bikes belong in local subreddits MOTION PRO DIGITAL Pneumatic Manometer 0-60PSI Pressure Tyres Digital Aluminium - 311.18. 08-0415 SyncPRO Manometer Fluid Refill Instructions Thank you for purchasing Motion Pro SyncPRO Replacement Manometer Fluid. Get the Motion Pro SyncPro Manometer Fluid Refill for only 7.19 or check out our massive selection of Fuel System Tools.Chat on Discord Showing off Bikes or Gear? Click Here Looking for purchase advice? Click Here /r/motorcycles stickers