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
Yamaha 50hp 2 stoke high rpm misfire
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="kofkorn" data-source="post: 390198" data-attributes="member: 7076"><p>Just a possibility that I've run into in the past: Sometimes the insulation on the wires coming from the stator or timing base under the flywheel can get worn through or cracked. When you open the throttle, the stator and timing base move. As it gets to a certain spot, the bared wires can make contact with the block, causing a short. I had the same issue with a smaller motor that would start and idle fine, but then had a serious miss around the mid-range. Checked the wires and fastened them, problem immediately went away.</p><p></p><p>you should be able to do a quick visual inspection of the wires. If you see any exposed or worn spots, wrap them with some electrical tape and run the motor. You should know pretty quickly.</p><p></p><p>Carbs are a possibility, but in my experience, they don't usually cause a miss, more often they cause a bog or sneeze. </p><p></p><p>Good luck!</p></blockquote><p></p>
[QUOTE="kofkorn, post: 390198, member: 7076"] Just a possibility that I've run into in the past: Sometimes the insulation on the wires coming from the stator or timing base under the flywheel can get worn through or cracked. When you open the throttle, the stator and timing base move. As it gets to a certain spot, the bared wires can make contact with the block, causing a short. I had the same issue with a smaller motor that would start and idle fine, but then had a serious miss around the mid-range. Checked the wires and fastened them, problem immediately went away. you should be able to do a quick visual inspection of the wires. If you see any exposed or worn spots, wrap them with some electrical tape and run the motor. You should know pretty quickly. Carbs are a possibility, but in my experience, they don't usually cause a miss, more often they cause a bog or sneeze. Good luck! [/QUOTE]
Verification
Post reply
Forums
Boats
Motors
Yamaha 50hp 2 stoke high rpm misfire
Top