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  1. jbjennings

    Merc 25xd pics for Faztbullet..Finally finished!!!!!!!

    Alan, I finally got this thing all finished! I had to rebuild the lower unit twice because I stupidly did not redo the seals the first time since they didn't leak. All good now, painted, and new decals. New kill switch and some fiberglass work on the cowl as well in preperation for paint. I am...
  2. jbjennings

    yamaha 90hp '98 model starts too easy!

    My "new" '98 model 90hp yamaha is really weird to me. I have researched it and found that my compression of just 120psi on all cylinders is good and normal. I have also read about this "enrichment solenoid". This thing takes no little special tricks or knowledge to start. Pretty much any...
  3. jbjennings

    question about new to me yamaha 90hp, '98 model

    Motor runs perfectly at all speeds. Compression is about 120psi on all cylinders. That seems kind of lower than I expected but the motor is in like new condition appearance and the way it runs. Are these compression numbers what you guys are seeing on your 90hp yamahas? (Just curious)...
  4. jbjennings

    New skeeter boat owner, lots of questions.

    I was wondering if motor height due to a jack plate could have any effect on porpoising? My 16.5foot skeeter has a nasty habit of porpoising at low speeds and has a bad tendency to start it if the water has any waves or swells at all. It's an ss90 with a 90hp yamaha. The boat is rated for...
  5. jbjennings

    how to get rings unstuck with piston out of motor?

    Well, I'm piddling with a merc 4.5hp that I was given a while back. It had 60psi of compression with both rings totally stuck. (I don't know how this is possible, but it did). I finally decided to split the case today and found the rings totally stuck. I can't even extract all of the...
  6. jbjennings

    Spun driveshaft on 2001 40hp OMC question

    Question: What, other than hitting a rock or stump and rusting, could cause the driveshaft on the powerhead side to strip the splines? Question #2: If the driveshaft splines are spun, what are the chances that the crankshaft spline grooves are still good? My neighbors did this and the...
  7. jbjennings

    Finally got to test my 2-blade brass prop on my OMC 10hp.

    Had it rehubbed along with several other of my 50's OMC props that had spun hubs or bent blades. My '55 10hp went 22mph on my homemade wood skeeter boat with the 2-blade brass speed prop. My '57 18hp only goes 23 mph on my 12 foot aluminum boat that's rated for a 20hp. I find that 12 foot...
  8. jbjennings

    lower cowl gasket for 25xd question

    Guys, Reworking my old '84 25hp and am having trouble replacing the gasket that goes in the groove of the lower cowl side pannels and fits around the midsection. This gasket is not shown in any parts diagrams that I've seen and therefore no part number. I'm thinking of making my own "gasket"...
  9. jbjennings

    Need some help on 50hp johnson....again....'72 model

    Motor is idling good, although it was fouling plugs yesterday and having intermittent spark on one cylinder yesterday when running low speed for any length of time. It would be o.k. for a minute or so after a full throttle run and start fouling a plug again. When applying throttle for full...
  10. jbjennings

    '72 50hp question about spring tension on throttle mech.

    I'm about to set the timing using Joe Reeves method on this motor. I've noticed that if I back off the timing stop, that the spring tension is not enough to advance the timing to the timing stop. I believe this may be causing me not to get quite enough spark advance. Has anyone had any...
  11. jbjennings

    Walmart Pflueger reel pretty good!

    JUst had a pleasant surprise recently. I got a reel from walmart (pflueger) for less than what I typically buy (abu garcia) because my last garcia's level wind/worm gear wore out so quickly. Seems the new garcias are not even in the ballpark of quality compared to the old ones. Anyway, the...
  12. jbjennings

    Strangest problem I've ever seen......

    My '72 50hp johnson is rigged, ready, and running good........... EXCEPT, if I take the spark tester off the bottom cylinder and put the plug boot back directly on the plug as it should be. Then I lose the bottom cylinder after a few seconds. It's like it needs the resistance of the tester...
  13. jbjennings

    '72 johnson 50hp problem with timing?

    I've gotten my 50hp running but can't seem to get it right. It will idle and run, but not smoothly. It seems like the timing is bad at all throttle positions. It has a terrible miss at all speeds. It will not open up wide open properly. There is a little fuel coming out of a hole in the...
  14. jbjennings

    evinrude 70hp run lean---worth fixing?

    I was wondering if a motor that has been run lean and ruined would be worth buying and repairing at any price? Would a rebore and new rings and pistons likely do the trick, or would the crank and bearings, rods, etc. likely be bad also. I know of a 70hp motor with tilt/trim for sale cheap...
  15. jbjennings

    1972 50hp wiring problem

    Well, My 50 is ready to run, but I am having a problem. The motor starts and runs on both cylinders, cranks, and turns off with the key, and the electric choke works (although the warm up circuit immediately kicks the choke a little closed without the choke switch being used). The motor shifts...
  16. jbjennings

    throttle cable ends question for '72 johnson 50hp

    I am ready for a new throttle cable to be ordered for my '72 50hp hydroelectric johnson. I kept the ends of the bad cable that I cut off, and they appear to be like the 479 cable. However, the 479 style cables are supposed to be for '79 and later OMC motors. What's the problem? Am I mistaken...
  17. jbjennings

    F_R, what prop shop, spark plug Q...

    F_R, As you probably have guessed, I read most of your posts in hopes of gathering some choice tidbits. I noticed quite a while ago that you posted a prop shop that you used sometimes through the mail. I sent a few of mine today to a guy in Tennessee (Dan's prop shop), and although it's...
  18. jbjennings

    '63 sportwin carb question

    I'm hoping to secretly drop off my sportwin later tonight to a deserving student of mine that lives nearby as a Christmas gift. It has new coils, new plugs, wires, starter cord, starter grip, points, condensers, l.u. oil, impeller, etc., along with a tank of gas and fuel line. Today after...
  19. jbjennings

    Just bought a '63 10hp evinrude

    Due to F-R's praise of the '63 10hp, and to make him as jealous as possible, I bought one today! ;) It came with a brand new hose, atwood tank, and most importantly---a nice 10th edition johnson service manual..... Has a new shifter boot, new pull cord handle, and looks good. However, the...
  20. jbjennings

    '72 50hp johnson, update, question

    Well, I finally had to just give up for a while and come back to my old 50horse today...... It had good spark, fuel, and compression but wouldn't hit a lick. After rechecking spark for the 5,000th time, and checking timing, I decided to switch spark plug wires and vrooom, it immediately...
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