Aftermarket Tach hookup

[joelyons50023]

Ok I installed my new tach but when hooked up to the stock wire it just did not seem like it was just right so I tried hooking it up to the common wire for the coil fairly close to the coil and that works not at all I was wondering if this is b/c I installed the COP or am i missing something?

 

[hubeerjw]

What tach are you trying to use? The gray wire is the wire the stock tach uses to obtain the signal. You also need to make sure that you have a tach that is compatible with 2 cylinder engines. If not, you will need to make a pretty simple diode assembly that will take the signal from the front two cylinders (or the rear two) and it will double the signal output. It is basically a t-boost switch. I'll try to post the link, but I believe it is on the vmaxoutlaw.com 's site.

Jeff

 

[KJShover]

Ok I installed my new tach but when hooked up to the stock wire it just did not seem like it was just right so I tried hooking it up to the common wire for the coil fairly close to the coil and that works not at all I was wondering if this is b/c I installed the COP or am i missing something?

What's not right? did you have your tach set for 2cyl?

 

[joelyons50023]

yup just slow and jerky?

 

[joelyons50023]

got it, when in doubt read the pro-cycle directions online "any coils neg wire" works great fast and accurate

 

[hubeerjw]

I think this is the bracket that would work with my tach.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=260333842751

Glad to hear you got it working.

Jeff