tach not working???

Kentetsu · 10-22-2010, 02:00 AM

Pull a trailing spark plug out and check for spark (keep it away from the fumes that will exit the plug hole when you crank it over). Could be a bad coil, or ignitor.

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t_g_farrell · 10-22-2010, 07:14 AM

Move the coil signal wire from the trailing to the leading coil and see if that
helps your tach.

With all the backfiring you either have a spark issue or a fuel issue or both.
If you can rule out the spark then you can work on the fuel. Kind of hard to
deal with a fuel issue tho ift he spark is unknown quantity.

10-22-2010, 02:00 AM	#1
Kentetsu RCC Contributor Join Date: Feb 2008 Location: Grand Rapids, Michigan Posts: 530 Rep Power: 18	Pull a trailing spark plug out and check for spark (keep it away from the fumes that will exit the plug hole when you crank it over). Could be a bad coil, or ignitor. . __________________ "Learn from the past, or it will become your future...." '85 GS 12a + LSD/Sterling carb/Respeed coilovers/Respeed front swaybar/Respeed adj. rear spring perches/Illuminas/Bilsteins on rear AutoX vids @ http://www.youtube.com/user/Kentetsu1

10-22-2010, 07:14 AM	#2
t_g_farrell Waffles - hmmm good Join Date: Aug 2008 Location: Huntersville, NC Posts: 757 Rep Power: 0	Move the coil signal wire from the trailing to the leading coil and see if that helps your tach. With all the backfiring you either have a spark issue or a fuel issue or both. If you can rule out the spark then you can work on the fuel. Kind of hard to deal with a fuel issue tho ift he spark is unknown quantity. __________________ 1980 GS stockport, Fat Nikki, RB Dual Facetfuel pumps, Holley regulator, RB Street port exhaust, 2GDFIS, MR2 MK I electric fans, 2G strut bar, relayed fans, lights and fuel pump, LEDs Project Fat Nikki Budget 12A rebuild Video setup < $30.00