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  1. K

    How often do you have to refill your inflatable??

    I'm curious how often folks have to do this. I would imagine with a new one that the answer is just once per season, but what about the older ones? If you bought a new one a while ago, at what point did you have to refill it each month? For older ones, how often do you top it off? I have...
  2. K

    No start problem on Nissan NSF 9.9B

    This thread was called "ABS - Auto By Starter.. how does it work?". I changed the title in case anyone was searching for help with a no-start issue on these motors. I picked up a NSF-9.9B and could not get it to start. Checked everything, cleaned carb, replaced plugs and could not get it to...
  3. K

    9.9/15/18 vs the 15/20 four stroke Tohathu/Nissan/Mercury engines

    Are there any similarities or exchangeable parts on the 9.9/15/18 4S engines vs the current 4S 15/20? I understand the 15/20 have a slightly larger displacement (328 vs 351) than the older ones. The cowling and the lower unit look very similar, if not exact, but I've never seen them...
  4. K

    Nissan CDI failure mode?

    I have an NSF-5B that was converted to 6HP with a carb. It has been running flawlessly for a year. Was running it over the weekend and after about 15 minutes of almost full throttle (about 5200 RPM) I noticed it miss a couple times. A few minutes later it started losing power. We were...
  5. K

    Gluing PVC vs Hypalon

    I have a mid-90's Quicksilver RIB. I was told by several folks that it is PVC, so when I did repairs on it I used PVC glue (HH-66). Everything works great now and no leaks. However, I ran across some marketing material for Quicksilver from the 90's. They show what appears to be my boat...
  6. K

    NSF 9.9b compression

    I have a new-to-me NSF9.9B, serial 10430, shortshaft estart tiller. I have had several 4/5/6 4-stroke Nissans, but this is my first twin cylinder. I don't yet have a service manual, but will get the factory one soon. Checking everything over before I go and try to start. It only...
  7. K

    2006 Mercury Outboard 5HP 4-stroke - GREASE LEAK?

    The only thing that grease does is lubricate the collar where the engine pivots when you turn. Just wipe it off. How hot does it get? Do you have a good stream of water out the tell-tale? Here's a parts diagram so you can see what is inside. Parts 20 and 23 are labelled "Thrust Bushings".
  8. K

    add a battery ,ignition problem

    You need to start using punctuation, sentences and paragraphs!!! Is this accurate?: From pic 3 (back of panel showing ign switch), it looks like the purple wire, which I think should be your Ignition wire, also feeds your blower and bilge pump switch, is that right?? Also in that pic...
  9. K

    3607 Air Conditioning

    I have a 1983 3607 and am thinking about adding A/C to the boat. I'm looking for pictures that others may have on the installations on these models (year could be different though). I know they were offered with three units, usually a 12k unit in the aft cabin, a 16k unit in the salon and...
  10. K

    Stator Rewrap

    Seems like a bit of clarification would help on several points. I don't know the specifics of THIS MOTOR, so someone please correct me if I say anything that is incorrect. What I think you see in the picture are the alternator windings on the stator, which should indeed be larger than 42 or 32...
  11. K

    Flushing adapter use for NSF 4/5/6

    Curious about this. Reading through the manual, I was looking at the use of the flushing adapter and wondering if I could use this instead of trying to dip the motor in a trashcan to run it at home. At first I was thinking that the flush adapter is only for use when the engine is not...
  12. K

    B100 - Impeller Housing Removal

    I'm just curious... what creates the seal between these two parts of the housing?
  13. K

    2002 Nissan 4str 6hp shift linkage problem

    Glad you got it figured out. I'm not sure if this helps, but this diagram might help explain the interaction of cam and pushrod:
  14. K

    NSF4/5/6 timing

    I have a NSF4A motor but the manual for a NSF5. Thought these motors were virtually identical but when I went to check the timing on the NSF4A, I get a constant 25 degrees. My manual states that the timing should be at 5 dBTDC at idle and climb to 25 dBTDC above 3500 RPM, as shown on the...
  15. K

    Nissan NSF4A Water intake strainer

    So, a picture is worth a thousand words, right? I took the lower unit out again to compare them. here is a pic with the old (grey) housing from the NSF4A next to pics of the "new" housing (which is now painted grey, but was black). The "new" housing is part number 825132T17. It's not...
  16. K

    Tohatsu 2008 9.8HP exciter coil issue....

    If I understood Paul's response in the other forum, you have a "waste-spark" system. When the coil fires, the current goes out through one high-voltage port of the coil, to that spark plug, to ground, to the other spark plug then back to the coil to the high-voltage port. It only goes to...
  17. K

    Nissan NSF4A Water intake strainer

    I bought a NSF4A that had the anti-cavitation plate and skeg broken. I picked up another lower housing (used) and was swapping parts when I started to notice differences. Apparently the housing I bought was from a newer motor. The original anode was round, the new one was rectangular. No...
  18. K

    E10 Survey.-

    I try not to run E-anything in my boat and outboards but there shouldn't be an issue with E-10 after about 1996. Anything manufactured has to comply with the availability of E-10. There's a push now to go to E-15 and the boat industry is fighting it pretty hard and have a lot of data to back up...
  19. K

    Nissan 4/5/6 HP engines and revisions

    I'm trying to understand the differences in revisions over the years for the NSF4/5/6 engines. I have a 2003(ish?) NSF5B and a 1999 NSF4A. Other than the carburetors, what are the differences in the A/B/C versions of these engines? Are there parts that are NOT interchangeable through the...
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