Search results

  1. B

    1997 Johnson 130 - Dies

    I'm pulling my hair out on this motor problem. It's a new to me 1997 130 Johnson. Fresh fuel on a 6 gallon tank Compression = 130psi in all 4 cylinders Checked spark = all 4 plugs are getting spark. Problem: Motor starts and idles for a full minute. Then motor stalls out. It will restart...
  2. B

    Mercury 50hp 3 cylinder - Fuel, Spark, 120psi compression - No Start

    Hey guys - I'm hoping that someone can point me in the right direction . . . I have a clymer manual and it's no help. Service manual is in the mail. I recently bought a 1989 Mercury 50hp that's in beautiful shape. The trigger and stator were bad . . . after I replaced them the motor has spark...
  3. B

    1988 Mercury 50hp 3cyl

    Hello!! I'm having some issues with this motor not starting. I have spark on all three cylinders (pulled plugs and can see spark on each one) After replacing the trigger, stator, and switchbox. Trigger and Stator test out in Spec per manual. I sprayed a little fuel into the cylinders to...
  4. B

    Mercury 7.5 vs 9.8

    I have recently acquired an 80's 7.5 Mercury. I hear this is the same motor as the 9.8 (110). Somewhere I read that the carbs are the only difference b/w the two engines. I'm wondering what I need to do to convert my 7.5 into a 9.8. Can you rejet these carbs? or do I need to find a carb off...
  5. B

    1991 Yamaha 250 Surging - 3 mechanics - no solution

    My good friend has been through 3 Yamaha service Dept's trying to get a fix an intermittent surging issue on his 1991 Yamaha 250. The motor can run for up to 30 minutes @ cruise 4000/4200 before the surging begins. Surging will drop RPM's up and down from 4000 / 3300 <br /><br />Here's what's...
  6. B

    Cost to bore one cylinder

    I have a merc 150 XR2 2.0L engine with one bad cylinder. Compression in #3 tests out at 60psi. I took the head off and there is very slight rust on one end of the hole. I can't see it easily, but you can feel it when you run your fingers accross the surface of the cylinder wall. <br /><br...
  7. B

    1998 150hp Ficht - TP Sensor - error codes 12 and 13

    I just got the ficht software and ran the diagnostics. <br /><br />Two codes appear #12 and #13 TP sensor.<br /><br />Has anyone had this problem?<br /><br />I am experiencing rough engine operation b/w 2500 - 3500RPM . . . lots of misses and sputtering. Above and below that the engine is...
  8. B

    OMC system check tach trouble???? - Seahorse ya there :)

    http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=28;t=032243 <br /><br />I just bought a used boat with a 150 evinrude ficht. I can't seem to get more than 4900rpm's out of the engine. Prop => 15 pitch stainless. The boat is a 20ft seacraft (weighs 1800lbs).<br />The cavitation...
  9. B

    Evinrude Ficht 150 . . . WOT => low RPM's

    I just bought a used boat with a 150 evinrude ficht. I can't seem to get more than 4900rpm's out of the engine. Prop => 15 pitch stainless. The boat is a 20ft seacraft (weighs 1800lbs). <br />The cavitation plate is slightly higher than the bottom of the vee. <br /><br />Engine has a 2000...
  10. B

    1981 225 removing stuck bolts on exhuast cover and heads

    Problem:<br /><br />1981 Mercury 225 - some of the head bolts are stuck . . . same with 2 bolts on the exhaust cover. <br /><br />What is the proper way to use heat to remove these bolts? <br /><br />I've been told to use a mapp gas torch and heat the bolts till they're red hot . . . then let...
  11. B

    converting a lowerunit from 20" to 25"

    What's involved in converting a lowerunit from 20" to 25"?
  12. B

    1981 BlackMAX v225 - No Spark

    Hey Guys . . . I'm fairly new to working on outboard engines, so don't make fun of me too badly for asking some dumb questions. <br /><br />Problem: <br /><br />No Spark (any of the plugs.)<br /><br />History:<br /><br />This engine sat for a few years, but compression is 125psi (+/- 2psi) in...
  13. B

    Difference b/w yamaha 115 and 130

    Can anyone tell me what the difference b/w the 115 and 130 yamaha is (besides 15hp)? Is it just the carbs?
  14. B

    V-6 trigger question

    The plactic wire jackets around the last 3 inches of several of the 6 trigger wires have deteriorated exposing the wire. My question is can I clip the last 3 inches of each wire and crimp on new ends or even cut back further like 6" - 8" and solder on new wire without ruining the performance of...
  15. B

    1981 Mercury 225 steering and trim/tilt

    I recently bought a project boat with this engine. The engine starts and has good compression, but there are a few problems. <br /><br />1. The steering is locked up. I have removed the hydraulic cylinder and I cannot turn the motor to either side. Can this be fixed? <br /><br />2. The...
  16. B

    1988 yamaha 200hp knocking at lower RPM's

    I am having trouble with my 88 yamaha 200hp knocking at low RPM's. The knocking seems to begin when I put the engine in gear up to 2200rpm, after running the engine for 15 - 30 seconds in the 1400 to 2200 RPM range the knocking goes away or if I accelerate past 2200rpms the knocking will also...
  17. B

    Fuel Pumps on 1988 yamaha 200 sounds like lawn sprinker

    I replaced both fuel pumps on my engine this weekend and took it out. My engine now sounds like a lawn sprinker (ch,ch,ch,ch,ch,ch,ch,ch) is this normal for new fuel pumps?
  18. B

    Yamaha 200 loss of RPM at WOT

    My yamaha is only turning 4600rpm at full throttle. I've scoured other message board for info, but I still haven't been able to figure out the problem.<br /><br />Engine: <br /><br />1988 200hp Yamaha.<br /><br />1. Compression is good<br />2. Brand new Fuel Pumps<br />3. Carbs are distributing...
Top