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  1. C

    1998 90HP Evinrude Problems!

    I will try and send a picture in the morning. I have the manual but couldn’t find what I was looking for. I basically need to know where the electric primer lines go, and also the check valves on the manifold, basically all the small lines.
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    1998 90HP Evinrude Problems!

    I have the main lines configured, but the breather lines I am having troubles with
  3. C

    1998 90HP Evinrude Problems!

    Also should I put everything (carbs, intake, ignition, and electrical) all back together on the bench and drop the basically complete top end on, or should I leave the power head bare and then build it after it is back on the motor?
  4. C

    1998 90HP Evinrude Problems!

    I did keep the old lines but took everything apart to clean it. I had taken pictures, months ago, but they disappeared after doing a back up to my phone and weren’t saved to the cloud. It is a nonVRO. I was tracing out the lines and trying to use the pre-shape of them to try and get it in the...
  5. C

    1998 90HP Evinrude Problems!

    So to sum up the last couple weeks. turns out it was boxed wrong and they sent out a 88-91 powerhead. I was able to return the wrong one and get the right one shipped out.... after a few days of hassle, but that’s irrelevant here... now I am back to putting it all together and it’s going...
  6. C

    1998 90HP Evinrude Problems!

    Yeah. Even counted the splines lol. Took a couple tries. I have called the manufacturer (OBR) and left a message so I’ll see what they say come Monday. Workaround, I assume, probably entails modifying the driveshaft?
  7. C

    1998 90HP Evinrude Problems!

    Got antsy and pulled it off, sure enough the internal splines on the crankshaft are completely different. There is a lip about 3/4 of an inch from the bottom of the female portion where the splines end and on the old crank the splines run almost all the way to the bottom and there is no lip.
  8. C

    1998 90HP Evinrude Problems!

    Thanks. Will reach out to them asap. In the mean times Do you think it is wise to pull the power head off and take measurements? I have the old power head here and I should be able to do a side by side on the crankshaft splines. Do you think this is definitely the issue or is there anything...
  9. C

    1998 90HP Evinrude Problems!

    guys I have appreciated the help so far but need some more assistance! So when I found water in the lower unit I did a reseal and inspection. The afterwards everything was good with the lower unit, got the new power head in and slid the lower unit back in. With no bolts on the lower unit...
  10. C

    1998 90HP Evinrude Problems!

    Alright so I got the power head off the boat today and into the garage. I want to check my lower unit for any problems. Aside from checking the oil for metal, any other things to check?
  11. C

    1998 90HP Evinrude Problems!

    Also, Looking ahead, all other pistons and cylinders look good. The affected cylinder only has two vertical scores, one I can barely feel with my finger nail, the other is more noticeable. my thought is, can I get away with honing out the cylinder a little bit and then just get a replacement...
  12. C

    1998 90HP Evinrude Problems!

    Got the motor mostly apart this weekend, sure enough the top ring on the affected piston is gone. Where is the ring now? I know that some of the junk on the piston head is probably ring debris, but shouldn’t I have some bigger pieces somewhere?
  13. C

    1998 90HP Evinrude Problems!

    Probably have the boat for the next 2-3 seasons
  14. C

    1998 90HP Evinrude Problems!

    What’s the old fashioned way? Lol
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    1998 90HP Evinrude Problems!

    Link?
  16. C

    1998 90HP Evinrude Problems!

    Yeah that’s what I was originally thinking... but what about the cylinders, just get them bored and run oversized pistons? Any estimate of how much machine shops usually charge to bore out the cylinders?
  17. C

    1998 90HP Evinrude Problems!

    Alright, so I am starting to try and price out/ get a shopping list together for a new power head. I have found a few rebuilt power heads on eBay and I am wondering, with a new power head, what else do I need to get to put the motor back together with the rebuilt top end. Here is the Power head...
  18. C

    1998 90HP Evinrude Problems!

    Dang. That is a lot more than I’d like to spend... was originally thinking the motor needed some work but nothing to this extent. I guess it’s a learning lesson. So a fully pre-rebuilt power head would be the $2400? Would me doing the rebuild myself be cheaper, or is that what the $2400 is...
  19. C

    1998 90HP Evinrude Problems!

    Sanford, NC
  20. C

    1998 90HP Evinrude Problems!

    Do you have an estimate of cost? Just in parts? A rough estimate is fine... just need something to help with what path I choose to move forward
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