Trail Tech 752-120 Vapor Digital Speedometer Tachometer Gauge Kit, 1985-2013 Polaris Trail Blazer Boss

Admittedly, I have gotten handy enough to take on completely previously unfamiliar tasks, and I proudly state this Vapor gauge install is one such example. I am no trained mechanic -- just an ordinary DIYer who watched the three part video installation series on YouTube by 49ccScoot and went from there.Since picking up a used Boom Revolution 50cc scooter off Craigslist for my 16 year old son, the instrument panel is one item that has irked me (see analog before picture). Perhaps this is because all my other modern motorcycles have digital speedometers and I just expect that now. But it is also because the Chinese gauge reads distance in Km and primary speed in Km/h and runs 15 mph too fast. So I asked Caesar aka SmallEngineVelocity of YouTube fame what's out there for a scooter digital gauge, and he pointed me to the Trail Tech Vapor. Specifically, I bought the 10mm CHT sensor version compatible with the small spark plug of the scooter. Single biggest competitor per my research would be the Koso DB-01RN which has a gas gauge and built in indicator lights but whose shape is more irregular vs my Chinese OEM.The hardest part of this install on this scooter is the mount as there are no connection points nor external visible handlebar. The previous gauge panel simply pops up through a cutout in the plastic dash, screwed in underneath. I took suggestions from 49ccscoot.com who has a page dedicated to the Vapor installation, specifically for a 50cc TaoTao. My approach is the one he used, perhaps slightly modified. For one, he used individual blue/green LEDs off Amazon for the brights/blinker lights, whereas I used the now available VAPOR INDICATOR DASHBOARD kit 022-PDA by Trail Tech which does the same thing but prettier. Fortunately, the dash kit fits PERFECTLY in the cut out of the old gauge. I too used 1/4" black ABS plastic (12" 'x12" sheet off Amazon) and cut out a template based on the shape cutout which I traced onto the ABS and then cut out with a rotary tool with saw blade. Differently, I used JB Weld quick dry epoxy with some clamps to adhere the ABS to the underside of the gauge space. This set within one minute and cured in one hour with no visible mess underneath unlike his installation. The next tricky step is to precisely mark cutouts for the connection wires, the two holes for the 4 mm screws which attach the Vapor to the ABS, and the holes for the indicator lights. Taking some additional measurements around the wire cluster, I traced my template onto paper and worked the cutouts from there, and I then transferred the paper template to the ABS and cut/drilled.Like the original Boom gauge, I have connected the brights indicator light (blue upper left) and turn lights indicator (upper right). The original gauge had one extra bulb controlled by a handlebar switch to light up the OEM gauge panel at night, so I thought wouldn't it be cool to install a complete RGB LED undercarriage light kit connected to this switch. But note, this positive wire only puts out 1V. Since the LED kit needs 12V, I will need to tap the positive switchable ignition wire as usual. This LED kit is also brake activated turning the entire bike RED when the brakes are depressed (see ASIN B085TG95NB).It is worth noting that most instructions for the tachometer wire instruct wrapping the red wire around the ignition coil five times. A much better and more reliable suggestion is to simply tap the positive wire coming out of the coil connector. I have installed a racing ignition coil off Amazon which has a negative green wire and a positive black wire. I used a simple wire tap to the positive, and the tachometer works flawlessly, reading approximately 3-4 on idle and up to 8-9 at max speed (is this true RPM? Not sure...)Yes, it is true the Trail Tech Vapor does not have a gas gauge as did the OEM gauge. 49ccscoot.com says you can use the trip odometer as a method assuming you know how many miles/tank you get and plan to fill up as you approach that distance. BUT I have just ordered a separate digital gas gauge, the Koso Mini 3 - Gas, which I plan on simply velcroing above the Vapor as it is very small (3x6 cm) yet has a 10 bar digital readout. Both the original gauge and the Koso have three simple wires (+, -, fuel resistance) which should be a very easy connection to the three wire harness from the disconnected gauge. That Koso gauge is shipping from Italy as it was not available in the US.Speed calibration: I used the sole magnet epoxied onto the brake caliper which seems to be perfect. After inputting wheel circumference per the calculator on 49ccscoot.com, I did an 11 mile test run and the Vapor was slow by about 10 mph. Using another calculator, I re-input the recalibration calculation using circumference, Vapor mileage, and GPS mileage, re-ran the 11 mile route, and the gauge was within 0.1 miles. Final recalculation was a minimal wheel circumference change. I'm sure speed is now spot on.Temperature CHT: I had to order the 48 in. wire extension off trailtech.com as only a 24 in. extension exists on Amazon, and you will need a 48 in extension. Engine temperature reads perfectly.All in all, I am very happy with the result for this Trail Tech Vapor. Please see my before and after pics which speak for themselves. Installations like these do take some handiness, but again, I'm just an ordinary DIYer who learns off YouTube and uses his head. You too can turn your antiquated analog Chinese scooter gauge into a modern digital one with tons of added data using this highly rated, attractive white back-lit, and hopefully reliable Trail Tech Vapor with Indicator Dashboard.Update 10/1/20: Koso Mini-3 Fuel Gauge and Tachico LED light kit now both installed per pics attached. Everything installed perfectly and turned out awesome!

Install was pretty easy works great on my Honda TRX700. It’s nice having a speedometer and tachometer on the 4 wheeler now. Setup was easy and the instructions were pretty easy to follow.

Works great

I bought this product to replace my DR650 original speedo. I wanted a tack too so this unit had that and more. Price was fairly reasonable for all the features it has. Installation was a little trickier than I thought it would be. The power was easy to splice into the old speedo power supply (luckily I am decent at soldering), and the tack wire just needed cut to length and wrapped around the spark plug wire and taped with some electrical tape (otherwise it's not going to stay put). The issues I ran into where with the temp sensor wire and the speed sensor installation. Temp sensor wire is almost too short (barely had enough wire), but when I took out the spark plug and reinstalled with the sensor on it and tightened down it did not seal well at all and had compression leak. Bike would not run well. I found on youtube that you have to CUT OFF (not an easy task) the washer that comes on the spark plug first, then put the copper ring around the plug base and install the plug. After I did that, no leak, and running like normal again. There was nothing said about this in the documentation. Next was the speed sensor wire. The bolt you have to use for the DR has no shoulder like the original but I suppose it is fine? There was nothing in the instructions about how to run the sensor wire up to the handlebars while allowing the suspension to still work properly and not kink or pull on the wire. I just zip tied everything as tight as possible and ran the wire up the brake line through the nylon guides. Unfortunately there is barely enough room for the two wires to share the guide and I am worried about them binding like some have mentioned in other reviews. I used silicon spray to help them slide through better and hopefully not have any problems. So I got everything working and it does the job pretty well but I noticed it doesn't read speed below about 4 or 5 mph, just goes to zero. Also the backlight is a little too bright for my liking at night. It's almost a distraction, I was used to using my phone in dark mode for speed readout which was all black background except for the numbers. Guess I'll get used to it over time. The menu system is a little clunky but I'm getting used to it. In order to access the menu system you have to hold all three buttons down on the front of the unit at once. If you mess up and only get two down instead of three, guess what, you just accidentally reset your ODO...which is what I go off of to monitor my fuel level. (There is no gas gauge on a DR). Also on the alternative screens you have to use the right button to toggle between features, I missed that on the instruction sheet. Took me a bit to figure it out. Still not sure how to use the "stopwatch" or if I even need it. One other thing, if you get the optional bracket they sell to mount the unit on a DR, make sure to REMOVE the stock bracket! Then bolt it right up in the place of the stock one. I did not even see the bolts that hold on the stock bracket...I was trying to make the optional one fit to the old bracket and it does not work like that!! I ended up bending the new bracket 45 degrees in a vice to get a good angle of viewing, THEN I saw the bolts that hold the stock bracket on. Seriously that would have saved me an hour of frustration. So it looks fine with my modified "easy" bracket mounted to my stock bracket, but jeez I wish they would have had some sort of mounting instructions with it. Ok, so all in all, it's on the bike and it works good. It tracks the rpms and engine temp just fine. I do like the ability to program in the shift warning and redline danger and also engine high temp which will light up the leds on the unit. I would recommend the unit, and it is definitely an upgrade to the non-existent technology on the old DR. Just be prepared to do a bit more than you expected when it comes to the install. Happy riding.

Installed this on a 2023 DR650. Easy and straightforward! So far it works great!

The media could not be loaded.  Very happy with this digital display. I was able to hook everything up within 15 minutes. The kit came with everything I needed, and the instructions are very clear.

I replaced my stock meter on my 2009 KLX450R. It’s fit and function are great. All worked as advertised. Only note is to enter the from tire distance measurement for speedo in mm NOT INCHES. I had to convert and re-enter the measurement when it was reading over 100mph when I was just cruising. The good news is that it was very easy to enter the needed numbers for setup. I would buy this product again for another bike if mine.

Funciona bien, resistente al agua, la instalación es fácil si sabes desmontar el tanque de gas, manipular las bujías y sigues al pie de la letra el manual

I brought this in September and unfortunately it’s no longer working so expensive for something what’s not going to last and no way of getting it replaced or repaired

Absolutely love this little guy!Though it is pricey, it is worth every penny. The ease of installation and the simplicity of everything is so worth it!I put it on my SV650, Which I purchased wrecked with plans to make it into a adventure style bike!I tried to get multiple cheap universal gauges to work, but nothing really functioned properly.I was watching a Fortnine video and saw him talk about the trailtech series!Being totally stand alone really appealed to me, because it allowed me to start fresh and not deal with the OEM wiring.Installation was simple and straightforward. Everything worked perfectly. Only issue I had was mounting it, but I fabricated a little mount and it's been holding up strong for the past 1000kms!If you're on the fence about getting this. Just do it. Its totally worth it!

Trail Tech speaks for themselves when it comes to quality parts. For whatever reason however the package came with the wrong water sensor and speed sensor. Maybe an incompatibility with gen 2 and gen 3 bikes, but the description included my year.Trail Tech will help you directly, but that only works if you're in the US.I suggest buying from a named dealer.

Esperaba fuera más grande la pantalla. Error mío no dimensionar. El producto recién se instalo (con relativa facilidad y no soy mecanico). Soporte firme no tiembla. Aún estoy aprendiendo la configuración