hard starting

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  #1  
Old 02-19-08, 11:05 AM
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hard starting

Had great help w/ Briggs engine now need hel w? Tecumseh engine. My Dad has a Craftsman vacuum with a Tecumseh engine Model #143.374362(TVS90).Would not start. Rebuilt carb, new spark plug, air filter. Started up fine, ran good. Went to start up this morning after a few days and it wouldn't start.Finally statrted it,ran great, shut it and it won't restart.Any ideas?
 
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  #2  
Old 02-19-08, 09:17 PM
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Try pumping the primer a little more vigorously and more times before starting. If that doesn't help, see if a shot of starting fluid gets it started. If so, you still need to make carb repairs.
 
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Old 02-19-08, 10:01 PM
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sense its a Tecumseh. you say its hard to start and when you shut it down it won't restart right away. if you let it sit for awhile and it runs after sitting for awhile then it sounds like the coil.
 
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Old 02-20-08, 08:58 AM
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Wouldn't you know it, It started up this morning, stayed running. Once I shut it down, hard starting back up. After a couple of yanks, the machine had the worse kick back. any suggestions?
 
  #5  
Old 02-20-08, 09:03 AM
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Kick back is usually a partially sheared flywheel key which would also contribute to the hard starting. Remove the flywheel and check it out. Have a good one. Geo
 
  #6  
Old 02-20-08, 09:15 AM
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Already checked the flywheel key.Not broken.
 
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Old 02-20-08, 05:04 PM
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Originally Posted by einsteindog View Post
Already checked the flywheel key.Not broken.
doesn't have to be broken does it look like its bent. any play in the flywheel. when it kicked back did it ripe the pull rope out of your hand.
 
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Old 02-20-08, 09:10 PM
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I agree, if the blade is on and tight and it is kicking back, then change the flywheel key.
 
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Old 02-28-08, 11:48 AM
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Well I changed the flywheel key. Theres still a kick back, but not as severe, and it doesn't happen all the time.
 
  #10  
Old 02-28-08, 08:16 PM
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And the blade is on, and tight, and not worn off at the ends? The blade acts as a flywheight in place of a cast iron flywheel, so if it is loose or too short, it will tend to kick back. If this is an OHV engine, and the blade checks out ok, then I suggest adjusting the valve clearances.
 
  #11  
Old 03-03-08, 12:30 PM
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heres a stupid question. How do I tell the difference between a cast iron or aluminum flywheel?
 
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Old 03-03-08, 04:17 PM
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Originally Posted by einsteindog View Post
heres a stupid question. How do I tell the difference between a cast iron or aluminum flywheel?
easiest way to tell is put a magnet on it. If it sticks, it is cast iron. If not, it is aluminum.
 
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Old 03-04-08, 12:14 AM
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I kept mentioning blade, thinking this was a mower (maybe a vacuum deck), and if it is, it probably has an aluminum flywheel. If it is a true vacuum, it may have a cast iron flywheel if it has a clutched load. Usually an engine that is set up to run with or without the load applied, it will have a cast flywheel, since the flyweight of the load will not be present at all times. A cast iron flywheel is usually brown, and an aluminum one is usually grey. As long as it has the flywheel it came with, assuming this is the original engine, it shouldn't make any difference.
 
  #14  
Old 03-12-08, 08:12 AM
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As if I didn't have enough problems with this machine, now theres gas in the oil.What else can happen?
 
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Old 03-12-08, 09:53 AM
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Your starter rope could break...^_^
Did you put new kit in carb, or just clean it good.
sounds like inlet needle not seating properly to prevent gas from going on thru to crankcase, or the float has pinholes allowing gas to enter.
 
  #16  
Old 03-12-08, 11:31 AM
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Brand new kit in carb. including new float.Changed oil. Started up fine. a little white smoke coominig from muffler.
 
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