Logo
FULL SITE MENU

1990 Johnson 150Slow Mode

J

jakethebrake99

New member
"This motor will get out of th

"This motor will get out of the hole smoothly, and run ok to about 1/2 throttle. When I try to give it more throttle, it does not respond with any more power, but will start to miss and shake, until I back off to about 1/2 throttle and it will be smooth again. Compression check was good in all cylinders, carbs were rebuilt, plugs were replaced, seems to get good spark with the tester. Any Ideas what might be causing this problem?? Thanks."
 
"yes it works, but not soundin

"yes it works, but not sounding with this prob. I can get out of the hole, cruis at about 25mph, but once I try to throttle up, all I get is no power and alot of motor shaking,and lugging, can back off thottle and resume about 25mph smoothly.
Thanks."
 
"This may not be a SLOW.. prob

"This may not be a SLOW.. prob at all..ck spark,...fuel filters etc...your alarm,may also not function,which should be ck'ed..disc tan and wht blk wire and try again.."
 
"disonnected the sensor, and t

"disonnected the sensor, and the motor ran fine. Water is flowing strong out of the little hole, and spitting out of the 2 holes behind/below the motor, motor did not feel hot after running( water pump was recently replaced also). Do you think it is just a bad sensor, or something else. Thanks."
 
Back
Top