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  1. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Went ahead and ordered the gasket; I'll back off that torque next time I'm around. Any problems with going ahead and decarbing the engine next time we have it out on the water to do some testing? Was going to do the classic Seafoam 15 minute soak-run technique. It will be the first time...
  2. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    It seemed like it was doing just that after that 5 minutes of run time. Just in case, what would be the best way to clear the idle circuit jets since they are the tiniest? Low RPM slow speed in the water with Seafoam in the fuel? Secondly I just realized that vapor separator unit/assembly is...
  3. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Just bought the fuel tank today since we thought we might use it for a while before we get around to draining the internal tank. Any chance a brand new check valve could be defective? How many pumps should it generally take to get it tight? And correct me if I’m wrong it should remain tight...
  4. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    I had it wrong. I tightened the screws on the top cap of the fuel vapor separator that’s next to the primer solenoid. Not the vapor/water separator.
  5. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    We decided today to fire it up without trying to remove the fogging oil; didn’t want to mess with grounding plugs and potential for spark to ignite fuel.. All I did was flush new fuel through the carb bowls, prime the VRO oiling system, and tightened some bolts on the vapor/water separator top...
  6. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Few updates, Struggled with replacing the thermostats because of the caps being frozen but eventually got it done. Replaced all of the reservoir oil among some other things like the lower unit oil. Removed and cleaned the high flow jets of the carbs I could get to. We are going to start it...
  7. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Engine is free for sure now; can I do any harm by turning the engine over with the starter and the spark plugs removed? I’d like to maybe flush some of the excess fogging oil in the cylinders out through the spark plug holes; I might be over stressing things just don’t want any possibility of...
  8. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Starter works but I just wanted a more gentler approach in case the piston rings were frozen. Tried it last night with the boat in forward gear and worked a treat. The pistons were slightly stuck but just moving the prop ever so slightly back and forth freed them pretty easily. Heard that it...
  9. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Haha sorry I was just trying to be thorough I assumed you did. Since its got the OIS system, am I able to crank the flywheel by that bolt under the first cover on the top of the engine? In the photo below that center bolt is what I'm talking about, I can't mess anything up timing wise if I...
  10. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Okay sounds like its just one per carb than because its a V6. So item #10 is non-adjustable, it just has a slot for removal?
  11. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Here’s some extra carb photos.
  12. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Okay just figured it out. That circled brass part above is Item #10 “Orifice” which means jet I believe. That doesn’t make sense to me since it’s drawing in air? It also says “3 required per assembly”. Not sure if that’s for just one carb or for the 3 carb assembly for 1 bank. That Item...
  13. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    Thanks @Oldsaltydog for the insight that puts me a little at ease. Sounds like I at least was on the right track then. As far as the jets go; I might just spray some carb cleaner into the high flow “orifice” as the diagram aptly calls it without removing it and that will jet into the other fuel...
  14. C

    2004 Johnson 150 (Bombardier) Sat for likely 3 years

    It’s my father’s boat and while I’ve been in Uni it’s been neglected for 2 maybe 3 years. Ran great when we last used it but a few things come to mind. It has the famous VRO/OMS system and we were worried about it back even when we used to use it. Any way to tell its working and not...
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