150 xr2 no spark on 1 2 5 when cold

[skeeter150xr2]

i have a 150 xr2 it has no spark 1 2 5 cylinders when cold when the motor warms up it only has no spark on 1 but sometimes 1 will pick up go down river how do i test to see if the coil are getting power thanks for any replys

[perfmarine1]

Well welcome to S&F,first off you will need a digital volt meter with a peak reading adapter. Or a peak reading volt gauge like the stevens CD-77. With a ohms meter you can check the ign coils and stator and trigger,but you realy need to check both ohms and peak reading voltage to be sure. You can buy a peak reading adapter from CDI, it comes with a sheat that tells you how to hook up and http://cdielectronics.com/readings for most motors built. You can find trouble shooting at there site. Good luck,any questions let us know. Just to let you know stators and switchboxes are the #1 problem with mercs,ignition coils and triggers are fairley reliable.

[skeeter150xr2]

i work on car i have a multimeter would that work or do i need the cdi tester

[mirage243]

Pretty good chance it's not a switchbox since the problems are on 1, 2 and 5, different sides of the motor.

[Dave Strong]

Still need the adapter, guy can guess all day long do the proper tests and replace the proplem component. Can spend a ton of money otherwise.


Dave