The Jack's Small Engines Forum - Join Our Online Community
Jacks Small Engines Lawn Mower & Power Equipment Forums
Community Stats
1 day 7 days 30 days Max. View More
Top Posters
  1. SRTsFZ6
    (37 Recent Posts)
  2. Merf49
    (7 Recent Posts)
  3. TedMowII
    (5 Recent Posts)
Most Active Threads
  1. Grease zerk
    (12 Replies)
  2. Poulan Pro High Wheel mower Chute problem !
    (9 Replies)
  3. Viper 99cc Head Bolt Torque specs
    (7 Replies)
Top Rated Posts
    There is no record available at this moment
Birthdays
There is no record available at this moment
2024/09/09 13:35:43
turnwrench03

hsqavarna 128cc LD will not start

has gas bulb pumps up, new carb, new spark plug gap a .020, new hoses and gas filter has spark compression about 92 psi,
will not even try to start, even with starting fluid...help
2 comments Leave a comment
SRTsFZ6
90 PSI is a bit low... Generally speaking 100 (for a 2 stroke) is the norm.
 
Pull off the muffler and peek as the piston.  ANY SCORING is bad.
 
If you have a leak down tester, check it see what #'s you get a 90 PSI.
 
.
2024/09/09 19:14:29
Conrad Sigona
SRTsFZ6 is always right. But if you don't have a leak-down tester, you can try taking off the spark plug, pouring in a little oil, pull the cord a few times to get the oil spread around, reinsert the plug, and now try to start it. The added oil seals the area around the rings, temporarily increasing the compression until it burns off. If the engine starts with oil, but refuses to start without, it means the cylinder and rings are badly worn.
2024/09/13 09:16:08

Comments are closed.

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