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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
