TinBoats.net
The original aluminum boat site!
Forums
New posts
Search forums
Blog
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Boats
Motors
Johnson 9.9hp (1989) - Idle
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support TinBoats.net:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="shawnfish" data-source="post: 268338" data-attributes="member: 4468"><p>low speed needle adjustment, not real sure about a 9.9 but on my 25 you turn the needle/knob clockwise and just barely snug it. if you tighten it too much you will damage it. from there i turn mine out about one full turn and start the motor. after its started i wait for about 30 seconds so the fuel has time to get into the carb and react to the adjustment, then from there i either turn it out or back in about a 1/4 inch at a time while waiting again before any more adjustment. if your motor will start and idle you wont have to turn it all the way in to start, just give it a bit of rich or lean in small amounts and wait and keep adjusting till you like how it idles. do you have a tach? dont need one but if you want to get it to factory specs you will need it.</p></blockquote><p></p>
[QUOTE="shawnfish, post: 268338, member: 4468"] low speed needle adjustment, not real sure about a 9.9 but on my 25 you turn the needle/knob clockwise and just barely snug it. if you tighten it too much you will damage it. from there i turn mine out about one full turn and start the motor. after its started i wait for about 30 seconds so the fuel has time to get into the carb and react to the adjustment, then from there i either turn it out or back in about a 1/4 inch at a time while waiting again before any more adjustment. if your motor will start and idle you wont have to turn it all the way in to start, just give it a bit of rich or lean in small amounts and wait and keep adjusting till you like how it idles. do you have a tach? dont need one but if you want to get it to factory specs you will need it. [/QUOTE]
Verification
Post reply
Forums
Boats
Motors
Johnson 9.9hp (1989) - Idle
Top