Cheap Ebay Tachometer Explained

You can find this tachometer for around $10 on Ebay. This small little device keeps track of the engine runtime hours, and reminds you of the engine service.
In this video i explain quick how to:
00:00:00 Ebay Tachometer Explained
00:01:21 Do a full reset
00:03:18 Setup the tacho mode
00:04:22 Set the maintenance/service interval
00:06:02 View the remaining time until service
00:06:21 Reset the service message
00:07:03 Example 1 cylinder 4 cycle snow blower

Mode1 Twice per rev
Mode2 Once per rev (default)
Mode3 Every other rev
Mode4 OFF
Mode5 Reset

This here is the name of it on Ebay
2 / 4 stroke Gas Engines ATV UTV Digital Tach Hour Meter Tachometer Gauge Black

[astonmartin]

Very helpful, thanks.For those confused the caption should have read four stroke single cylinder, not four cylinder single clinder.And revelations are in the Bible, revolutions aren't. 👍👍👍

[Free_Ranger_CT]

Thanks for uploading this. I'd messed up my settings & lost the instructions. This was a huge help!

[justindunafon]

THANK YOU for making this video! For those in the comments asking what setting to use for their two or four stroke engine, you simply NEED to find out how often it fires. Some four strokes fire once per rev, and some two cylinder two strokes fire twice (JS550 for example).

[algorel]

Excellant video. My instructions that came with he unit were wired to say the least.
Thanks!

[kriskris-vbci]

Hi, which setting should I use for a 4cyl car engine? 1996 Renault 1.2 E7J monopoint injection engine to be precise. Number 3? Thanks!

[FMG]

Thank you for making this video.
You answered my questions, so now I know what to buy and how to use it.

[malcytull]

Great video, very informative, thank you for sharing.

[bobstanden]

Thanks for the vido
I have a question
Can you shorten the wire if you have the tach mounted on a machine to neaten up
The install
Thanks Bob

[squidben]

Excellant video. just bought one, waiting for it. Just changed carb on tecumseh 9hp and rmp sounds real high so waiting for this to properly adjust.

[haraldpost]

How does the battery hold up? Is thing useful in practice an hour meter?

[wow]

Should my tachometer turn off eventually? I don’t think mine was

[olofjonsson]

Can I cut the cable to a custom length without affecting the function?

[kevinhamming]

Sorry about keep making comments but needed to clarify. since I know that a honda metropolitan idles 1500 - 2000 rpm the only thing that made sense is setting mine to match this rpm. The only way is by setting it to 1 on the tach setting. Other wise any other setting is at least twice or too high.

[Konstantinosmo]

How does the digital tachometer switch off ( without the way of reseting it)?

[fotogenia]

Hallo my friend
Who is the correct mode for a chainsaw with one cylinder;
Mode 2 is correct ;
Thanks

[Thomas-nzuh]

I purchased one of these for my Husqvarna 128 LD weedeater. The manual says the idle rpm's are between 2800-3200, so I have the rpm's set to 3, 000, but the max speed should be set to 11, 000 rpm's. My question is, how would I get this techometer to show 11, 000 rpm's?

[khoitran]

i am using this product on a scooter 4 stroke Fi, in mode 2, RPM is not stay like your video, any advise sir?thank a lot.

[algorel]

Just to be clear, I am setting up mine on a new Honda mower, 4 stroke. Which code should I select? 1, 2, 3, 4?

[AndresCuervoArt]

Hello, For a 4 stroke 2 cylinder V twin harley carburated what would be the setting? stock is dual fire spark "A single coil winding with two high voltage output terminals fires the spark plugs on both cylinders simultaneously. Each plug is fired twice during each four stroke cycle"

[turbofiat]

I used this tachometer to set the idle speed on my 2 cylinder 2 stroke Trabant 601! Then I tested it on my Citroen 2CV which is a 2 cylinder 4 stroke engine but uses a wasted spark ignition system.

I got about what I expected on both engines.

I figured I'd have to do some dividing or multiplying to get the correct RPM but it was spot on.

I was using a Sears engine analyzer. I would have to set it to the 4 cylinder mode then watch the needle bounce around, write down the lowest reading and the highest reading, add the two together and divide by 2 to get the average.