evilgenius877
Cadet
- Joined
- Jun 4, 2008
- Messages
- 27
my '74 50 hp johnson is running a little rough. sometimes it idles real low and even stalls and sometimes it idols really high . at WOT it runs smooth but is not really at WOT i know it has more. she spits and sputters when the shifter is in mid range. i noticed that if i spray carb cleaner into the top carb it tries to die out naturally...but if i spray into the bottom the motor picks up power and speed. how do i adjust the carbs to where they should be ?
also.. i noticed the linkage between the two carbs was not tight. the lock that holds the two metal shafts togheter was loose so that one of the carbs was not opening fully ,and it ran great like this. i tightened the screw and now it runs a little like crap as i mentioned above. how do i put these two carbs in sync and how do i adjust the carbs so that it is running right and better ?
also...when i throttle up from about half to full it acelerates and increases power for about five seconds and then falls on its face back to about half throttle but seems to run smooth even though it is not at true WOT but my shifter is maxed out
also.. i noticed the linkage between the two carbs was not tight. the lock that holds the two metal shafts togheter was loose so that one of the carbs was not opening fully ,and it ran great like this. i tightened the screw and now it runs a little like crap as i mentioned above. how do i put these two carbs in sync and how do i adjust the carbs so that it is running right and better ?
also...when i throttle up from about half to full it acelerates and increases power for about five seconds and then falls on its face back to about half throttle but seems to run smooth even though it is not at true WOT but my shifter is maxed out