1
Hello from North Carolina Wed Sep 04, 2019 1:11 pm
futech
active member
Hey folks,
Recently bought an ‘88 K100LT after a little over a year forced sabbatical from riding due to an unfortunate encounter with the side of a van. Although I’ve been restoring a ‘57 Suzuki K15, this will be my first real project build, hence joining you fine folk.
Been going through the basics of getting her up and running since the previous owner had her sitting for over a year, and just found that the injectors aren’t firing. I pulled the injector rail and confirmed and ran some tests. Fuel pump and regulator seem good since fuel pressure is at the 36psi. Each injector fires when 12V is manually applied, and each connector is receiving a signal when starter is pushed (however each is receiving a 10.8V signal rather than 12V). At this point I figure it’s either the ecu wiring harness, or the ecu itself, but not sure how to test that. Would anything else prevent the injectors from firing? Any suggestions on how to test ecu or ecu harness/connector?
Looking forward to the journey with this k-bike!
Thanks everybody!
Recently bought an ‘88 K100LT after a little over a year forced sabbatical from riding due to an unfortunate encounter with the side of a van. Although I’ve been restoring a ‘57 Suzuki K15, this will be my first real project build, hence joining you fine folk.
Been going through the basics of getting her up and running since the previous owner had her sitting for over a year, and just found that the injectors aren’t firing. I pulled the injector rail and confirmed and ran some tests. Fuel pump and regulator seem good since fuel pressure is at the 36psi. Each injector fires when 12V is manually applied, and each connector is receiving a signal when starter is pushed (however each is receiving a 10.8V signal rather than 12V). At this point I figure it’s either the ecu wiring harness, or the ecu itself, but not sure how to test that. Would anything else prevent the injectors from firing? Any suggestions on how to test ecu or ecu harness/connector?
Looking forward to the journey with this k-bike!
Thanks everybody!
Last edited by futech on Wed Sep 04, 2019 1:36 pm; edited 2 times in total
K1100RS/LT - R1200RT - R1100RS - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S - K1100RS - K75RT - K75C
K1 1990 Laguna Blue and Yellow 