Need chainsaw help

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  #1  
Old 02-14-08, 04:39 AM
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Need chainsaw help

Hello. I am currently checking out a friends chainsaw for him. It's a Stihl 028. It wouldn't start at all. I checked for spark and wasn't getting any. I changed the spark plug and still wasn't getting any spark (with a plug from my saw which I know is good...I started my saw before I took it out). So I took the side cover off and pulled out the ignition module, cleaned up the connections, put it back in and I was getting great blue spark every pull. I finally got it to start, but it won't stay running. Can an ignition module cause this problem? Will they be tempermental like that or are they either good or bad? Also, is there any way to test them? Would appreciate anyone's help on this. Thanks.
 

Last edited by treeguy; 02-14-08 at 04:40 AM. Reason: grammar
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  #2  
Old 02-14-08, 05:11 AM
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How long has it been sitting ??
If the fuel mix is fresh and the fuel filter is known to be good, it's most likely a dirty carb that needs to be thoroughly cleaned and rebuilt with new gaskets/diaphragms.
thanks,
 
  #3  
Old 02-14-08, 05:57 AM
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hasn't been sitting really. fuel filter is good, gas is good. our saws get used all the time as our only source of heat is wood. continuous use pretty much year round. the carb was next on my list after ruling out the obvious and more simple things first. thanks for your help.
 
  #4  
Old 02-14-08, 07:27 AM
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It's really not that hard to rebuild/clean the carb is it?
 
  #5  
Old 02-14-08, 07:57 AM
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How long has it been sitting ??
If the fuel mix is fresh and the fuel filter is known to be good, it's most likely a dirty carb that needs to be thoroughly cleaned and rebuilt with new gaskets/diaphragms.
thanks,
 
  #6  
Old 02-14-08, 08:01 AM
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Originally Posted by treeguy View Post
It's really not that hard to rebuild/clean the carb is it?
Not really, if you tell us what carb it is, Walbro, ZAMA, maybe a Tillotson, can send you service manual for it.
thanks,
 
  #7  
Old 02-14-08, 10:23 AM
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Am I going to have to perform some disassembly to get the name on it? or is there a certain characteristic that will let me know what kind it is? thank you for your help.
 
  #8  
Old 02-14-08, 10:56 AM
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I looked at the saw, couldn't see a name on the carb that was in plain view. Will I have to remove more of the surrounding parts to reveal a name on the carb? thanks
 
  #9  
Old 02-14-08, 11:10 AM
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The manufacturer name will be on either of the two covers of the carb.
If you decide to rebuild the carb, you will have to disassemble to find the particular model number of carb, all three have a myriad of model numbers that determine which kit to buy.
thanks,
 
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