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View Full Version : Where to wire in tach


chucked
12-23-2004, 01:48 PM
on a 400ex, which wire does the tach wire go to, I tried either side of the coil but neither works.
ReconRider25
12-23-2004, 06:30 PM
what kinda tach? on those tiny tach things the wire just wraps around the sparkplug wire....my friend has one on his crf
TORO1968
12-23-2004, 06:50 PM
It should go on the negative side of the coil, I believe...
chucked
12-23-2004, 07:59 PM
Originally posted by TORO1968
It should go on the negative side of the coil, I believe...

no that didnt work, I finally got it to work but I put it on one of the pulse generator wires, its not right though, its only made for a 2-10 cylinder, so wide open its only at like 3000 rpms
nosliw
12-23-2004, 08:09 PM
lmao. what's # of cylinders is it set for?
chucked
12-23-2004, 08:16 PM
Originally posted by nosliw
lmao. what's # of cylinders is it set for?

the closest I can get it is 2 cylinders, so everything is cut in half
toby400ex
12-23-2004, 10:03 PM
Why would u get a tach made for 2-10 cylinders, when u only have 1?:huh
Big400EX
12-23-2004, 10:06 PM
Originally posted by toby400ex
Why would u get a tach made for 2-10 cylinders, when u only have 1?:huh

Got um!

Thats a bop, lol.
chucked
12-24-2004, 05:56 AM
Originally posted by toby400ex
Why would u get a tach made for 2-10 cylinders, when u only have 1?:huh

I found it ;)
spudss
12-24-2004, 07:39 AM
Let us know if you get the right tach and get it wired and mounted right and post some pics and where you got the stuff to do it all...I would be interested in putting a tach on my 400
chucked
12-24-2004, 08:09 AM
Originally posted by spudss
Let us know if you get the right tach and get it wired and mounted right and post some pics and where you got the stuff to do it all...I would be interested in putting a tach on my 400

It works, but the reading isnt right, like instead of saying 6000 it says 3000, im just gonna trash it if it doesnt work right.
spudss
12-24-2004, 08:21 AM
would a street bike tach work..
chucked
12-24-2004, 08:22 AM
Originally posted by spudss
would a street bike tach work..
no, it has to be for a 1 cylinder engine
spudss
12-24-2004, 08:28 AM
thats right I was just thinkin goff the high rpms... Surely they sell them.. Do you now haw much they are new..
toby400ex
01-03-2005, 01:59 AM
maybe u could just change the face of the tach, just cut all the numbers in half. But wtf do u need a tach in a quad anyway. U should be lookin at the track or trail, not a tach that doesnt even read right.
chucked
01-03-2005, 05:39 AM
Originally posted by toby400ex
maybe u could just change the face of the tach, just cut all the numbers in half. But wtf do u need a tach in a quad anyway. U should be lookin at the track or trail, not a tach that doesnt even read right.


yea wutever