elkhunter1971
Cadet
- Joined
- May 2, 2006
- Messages
- 9
I just purchased a 1988 crestliner with a 150hp black max. I am used to inboards and not too familiar with outboards. The motor starts good but it seems for the first 10 minutes of operation that a jet or something is stuck. <br /><br />At first it planes alright with a speed of about 34 mph. After 5-10 minutes of slowing down and the wot it will cut loose and speed up to 43-45 mph with an rpm from 5000-5200. manual rpm states 5500 rpm. I do live and boat at an elevation of 4500 and the boat has been local from new.<br /><br />I have pulled the jets in the carb, the jets are 074 which seems right. I have run two tanks of sea foam through it but have not run the concentrate. The problem is the same if not worse. I havn't ran a compression check yet but will tomarrow. All the spark plugs look good and the same. I havn't ran the boat for 5 minutes and then checked them before it starts running better though.<br /><br />The carbs have never been rebuilt but will be this next winter unless everything else fails. I have looked through the service reciepts also and havn't seen any replacement of the impeller. I am ordering a repair manually but if there are any other things I should do let me know. My biggest problem is to get it running right.<br /><br />In case you are wondering why the boats name is "NOT FUBAR", is because our last boat was named fubar when my dad baught it and I spent most of my time working on it.<br /><br />Thanks for any help you can give me, awesome site!
