mspaceman21
New member
regular analog tach, Livorsi makes some cool ones for diesels. Im not taking the governor out and the diesel tachs go to 4000 rpms so it's be perfect. Can it be done? If so what is needed and how?
Honda Clone Tachometer
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kartingizm
Murray Hardrive Gokart
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in the future im gonna buy this tach. it has hours so i can know when the gas is gonna run out when im riding and how much rpm the engine is running
http://www.northerntool.com/shop/tools/product_200319029_200319029
from what ive heard its a good tach.
Doc Sprocket
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In the first place, tachs designed for multi-cylinder engines generally don't work with a single-cylinder engine without electronic modification.
Secondly- I'm not even sure how diesel tachs work, but I DO know that gas engine tachs count spark pulses. There's no spark in a diesel. So- probably will not work.
mspaceman21
New member
I wondered about that too, cause i think a diesel tach runs from the efi computer system, which a clone certainly doesnt have. and thanks kartingizm, that looks to be a pretty easy set up as well.
mspaceman21
New member
Also, any knowledge of ways to install temp. guage, speedo? i wish they made single cylinder analogs, nothing like watching those needles bounce 
jessez
New member
I would think the diesel tach works on the pulse of the injector just a guess though,
Also not to thread jack but a side question would a tach for a 2 stroke work on a 4 I would think so but not sure
Also not to thread jack but a side question would a tach for a 2 stroke work on a 4 I would think so but not sure
birddog1148
New member
mspaceman21
New member
I like the digital ones and all, just want that cool look of an analog one. More research . . .
mspaceman21
New member
http://www.egauges.com/vdo_ind.asp?Type=Tachometer&Series=Sport_Comp&PN=ATM-3788
that link has a diesel tach that claims to: "Mini-Diesel Tach. A small inductive probe straps to the alternator"
Could the inductor be put on the coil wire?
that link has a diesel tach that claims to: "Mini-Diesel Tach. A small inductive probe straps to the alternator"
Could the inductor be put on the coil wire?
mspaceman21
New member
BUMP on the 2 stroke
jessez
New member
I would say probably not, just like my question is basically because a 2 stroke would pulse every other stroke a 4 stroke is every 4.
So I am thinking to answer my own question probably could work but might be telling me I am doing 1k when really it is 2 and so on
Doc Sprocket
*********
To clarify- A two stroke fires once per crank revolution
- A four stroke fires once every two revolutions
Exception- waste-spark systems, four strokes that fire on the exhaust stroke- once per rev
Exception2-
Most of our "OPE"/"industrial" engines- the Briggs, Tecs, Honda/clones etc- DO fire once per crank rev due to the design of the ignition system- The magnet passes the coil on every rev... Therefore, any tach that works properly on one of our engines would also work on an equialent two-stroke... I think...
jessez
New member
- A four stroke fires once every two revolutions
thanks for clarifying it made since to my simple mind but you put it better
Exception- waste-spark systems, four strokes that fire on the exhaust stroke- once per rev
Exception2-
Most of our "OPE"/"industrial" engines- the Briggs, Tecs, Honda/clones etc- DO fire once per crank rev due to the design of the ignition system- The magnet passes the coil on every rev... Therefore, any tach that works properly on one of our engines would also work on an equialent two-stroke... I think...
good point I knew that just didnt think about it some times it is the little stuff that you over look like on sling blade when they couldnt get the lawn mower started he gets it and says "there aint no gas in here"
GoodWComputers
Aspiring Mow-Kart Owner
Anyone know of a good analog tachometer for a 4 cycle? My engine is a 10 hp Tecumseh.
jamyers
Well-known member
Consensus seems to be that the options are:
* Mechanical-drive
* Electronic
- Modify an automotive multi-cylinder tach
- spend $100+ on a "Jr. Dragster" tach
- Modify a cdi-ignition tach (like on a snowmobile)
We ought to all put $5 into a pot, with the whole amount going to the first person who finds a straight-up bolt-on analog tach (ideally something like 0-6,000rpm) that's readily available for under $50.
* Mechanical-drive
* Electronic
- Modify an automotive multi-cylinder tach
- spend $100+ on a "Jr. Dragster" tach
- Modify a cdi-ignition tach (like on a snowmobile)
We ought to all put $5 into a pot, with the whole amount going to the first person who finds a straight-up bolt-on analog tach (ideally something like 0-6,000rpm) that's readily available for under $50.
soggycrashed
Member
You must modify a current tachometer or use a Jr. Dragster,
I modified a Super Tach II with a 625K resistor for my 1 cylinder engine to the kill switch.
The tach plus resistor is about $45 dollars and the Jr. Dragster is over $100. I would recommend the Super Tach, because the analog style looks nicer and is cheaper.
I modified a Super Tach II with a 625K resistor for my 1 cylinder engine to the kill switch.
The tach plus resistor is about $45 dollars and the Jr. Dragster is over $100. I would recommend the Super Tach, because the analog style looks nicer and is cheaper.
jonboy
Member
Some diesels and single cyl engines use a magnetic pickup.
GoodWComputers
Aspiring Mow-Kart Owner
rmm727
New member
This is what I used.
https://www.google.com/shopping/pro...a=X&ei=oE7_UOa1FOaR0QHlt4DwAQ&ved=0CEkQ8wIwAA
Close enough to the $50 limit.
It uses an inductive pickup and you need a 12v battery for it to run.
https://www.google.com/shopping/pro...a=X&ei=oE7_UOa1FOaR0QHlt4DwAQ&ved=0CEkQ8wIwAA
Close enough to the $50 limit.
It uses an inductive pickup and you need a 12v battery for it to run.
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