The Jack's Small Engines Forum - Join Our Online Community
Reply to post

4 Cycle Trimmer doesn't start

Author
[email protected]
Starting Member
  • Total Posts : 6
  • Scores: 0
  • Reward points: 0
  • Joined: 2023/04/12 08:53:42
  • Status: offline
2023/12/14 17:52:57 (permalink)
0

4 Cycle Trimmer doesn't start

I picked up a 4 Cycle Trimmer trimmer, added new oil, replaced the broken prime bulb, and cleaned the carburetor.   When I pull the string it's leaking oil out the side from the air cleaner. It doesn't start. What should I check next?  Could the diaphragms be the problem? 
 
Update - the spark plug has a spark. It wasn't plugged in all the way. After I plugged it in tightly, the engine started but died right away. I think I am almost there.  Just need a few pointers.  May be there's not enough fuel to the engine.?  I removed the returned fuel line and I see fuel come out of it when I pressed the primer.

It's not even try to fire up now after priming and spraying gas into the carburetor. I forgot to mention it had an empty tank before I filled it up. Could the engine be broken because of it? I can hardly feel resistance when I pull the string now.
post edited by [email protected] - 2023/12/15 08:05:41

2 Replies Related Threads

    [email protected]
    Starting Member
    • Total Posts : 6
    • Scores: 0
    • Reward points: 0
    • Joined: 2023/04/12 08:53:42
    • Status: offline
    Re: 4 Cycle Trimmer doesn't start 2023/12/15 11:10:17 (permalink)
    0
    I got the engine to start now. I feel pressure when I put my thumb over the plug hole and pull the rope. I retested the spark plug and realized that it was not sparking all the time. I cleaned the contact to make sure it was good and sprayed some gas through the spark plug hole and the engine started. I kept it running for a few minutes and ramped it up. I assumed using fuel from the fuel tank at that time.
    SRTsFZ6
    Super Member
    • Total Posts : 2031
    • Scores: 74
    • Reward points: 0
    • Joined: 2018/11/18 07:20:58
    • Status: offline
    Re: 4 Cycle Trimmer doesn't start 2023/12/15 15:53:11 (permalink)
    0
    So it's good now?
     
    .

    Scott
    Jump to:
    Copyright © 1994 - 2016 Jacks Small Engine & Generator Service, LLC
    © 2025 APG vNext Trial Version 5.5