Recent content by wilson973

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    Servo opening and closing all the time

    Just finished rebuilding my 99 Yamaha XL 1200 LTD. Fired it up and it runs great. Shut off and started up several times. No problem at all. So I put the cover on and went inside. After a few hours I went outside and I heard the servo on the ski open and close. The ski has been off for atleast...
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    1989 70hp engine not running wide open

    I took my Johnson 70hp J70TLCEM to the local boat mechanic because it would not open up wide open. It would normally run about 38mph. Now I can only get it to about 25mph. The mechanic said it is the powerpack. Ordered a new on replaced, took to river run worse. ordered another one same thing...
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    50hp Johnson reving up high on its own

    Just got done cleaning the carbs on my friends 2000 Johnson 50hp motor. after starting it up it would idle fair, if i gave it some gas it would level out. When reving the engine up, about half the time it would rev up really high and I could not cut it off. The only way to cut it off was to pull...
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    Motor Vibration

    I have a 1989 Johnson 70hp. Today when I took it out the motor started vibrating really bad. After I left the landing I started to plane out and about a minute later the motor started vibrating really bad. I slowed down and it was a very slight vibration. If I got over 7 mph it would vibrate...
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    Idling High

    Just put my motor 1989 Johnson 70Hp Back together. Had it bored .030 over. Fired right up. The only problem is when idling it is idling high. If I go to the motor and push the timing bar ( I quess thats what it is ) Back it will idle down. As soon as I let it go It idles back up. Any advice?
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    Torque Specs

    My new pistons and rebuild kit came today and I am now ready to rebuild my motor. I had the cylinders bored .30 over and the head shaved. I really need the torque specs. on the connection rods, head, and anything else that needs torquing. I have a 1989 Johnson 70hp 3 cylinder, Model #J70TLCEM...
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    Taking Motor Apart

    Last week I started pulling my motor apart. No compression on the center cylinder. I have a 1989 70hp Johnson. I got all the wiring, carbs, starter and accessories pulled off. I took off the lower cover to access the 6 bolts that go into the lower part of the block. What else holds it in place...
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    Tilt/Trim Troble

    I have replaced the tilt motor on my 70 hp Johnson and replaced both Relays. I still cant get the motor to move unless I put the 2 wires straight to the battery. If I press the up or down button on the control box I get 12.87 volts between both leads. I have checked all wires. None burnt or cut...
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    Spark Plug Engine trouble

    I have been working on my boat for over a week now. It has been jerking at half throttle and above. I have done everything. Today I just started pulling plug wires off as it was running. Pulled the wire off the top one, engine died. Replaced wire started back up then pulled wire off the second...
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    Motor jerking at mid throttle

    Took my 89 Johnson 70 hp out on the river yesterday for the very 1st time. Starts up just fine, Runs really good at idle to almost half throttle, then its starts jerking and I cant get it to stop or go any faster. I have to run it at less than half throttle. I just had the 3 carbs rebuilt, and...
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    Really need help 89 Johnson 70HP Wont Start

    I just bought a boat and a 1989 70 hp Johnson with it. My problem is I have fire at all 3 plugs and if I try to crank it it just turns over. I little bit of bluish smoke comes out of the prop. I pull the plugs and all 3 have fresh gas on them. So I assume im getting gas to all 3 cylinders. I...
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