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  1. J

    WIRING DIAGRAM/ SCHEMATICS for TRIM SWITCH 1989 Chaparral 178XL - needed

    I need help in finding wiring diagrams/ schematics for my 1989 Chaparral 178XL. I also need a new TRIM Switch. Whewre can I find these. My Trim will work perfect one minute and the next makes one click then stops. Need to find the short as that is what it seems to be. Thank you all in advance...
  2. J

    Wiring Diagrams for 1989 Chaparral 178XL

    I need help in finding wiring diagrams/ schematics for my 1989 Chaparral 178XL. Mainly I need the TRIM Switch wiring part. My Trim will work perfect one minute and the next makes one click then stops. Need to find the short as that is what it seems to be. Thank you all in advance...
  3. J

    OIL WEIGHT? Firing Order OMC COBRA 3.0 4 cyl? Won't start 1989

    I used 5w30 Penzoil with some LUCAS OIL ADDITIVE is this right? Also can anyone confirm the firing order on a 1989 OMC Cobra 3.0 4 cylinder as 1-3-4-2 ??? I can't get it started. Bad gas sat in it for 1.5 years. It has been drained of that gas, but I only got it to fire up once (ran well)...
  4. J

    Please Help. Starting Issue

    We have been doing some work on my boat the past few weeks. NEW COIL, PLUG WIRES, COIL WIRE, POINTS, BATTERY, CONDENSOR, FUEL FILTER, PLUGS. We finally got it started and it has started right up. Today after fixing the fuel tank out line, and changin the oil and oil filter it started up no...
  5. J

    Boat started and ran fine then died at idle and has not started since.

    We have been doing some work on my boat the past few weeks. NEW COIL, PLUG WIRES, COIL WIRE, POINTS, BATTERY, CONDENSOR, FUEL FILTER, PLUGS. We finally got it started and it has started right up. Today after fixing the fuel tank out line, and changin the oil and oil filter it started up no...
  6. J

    OMC Cobra 3.0 Rough Running & Floods easily.. #1 Cyl spark plug is dry HELP

    OMC Cobra 3.0 Rough Running & Floods easily.. #1 Cyl spark plug is dry I have a 1989 OMC 4 cyl 3.0 Cobra engine in my 1989 Chaparral 17' 178XL. I can sometimes get it started but it runs rough and doesn't want to stay running (even when I give it more on the throttle) It seems to flood pretty...
  7. J

    OMC Cobra 3.0 Rough Running & Floods easily.. #1 Cyl spark plug is dry

    I have a 1989 OMC 4 cyl 3.0 Cobra engine in my 1989 Chaparral 17' 178XL. I can sometimes get it started but it runs rough and doesn't want to stay running (even when I give it more on the throttle) It seems to flood pretty easily also. I have installed new COIL, DISTRIBUTOR, SPARK PLUGS...
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