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Old 11-29-2012, 07:31 PM
sven1277 sven1277 is online now
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Join Date: Mar 2008
Location: Gales Ferry, CT
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Shindaiwa 802 losing power

Starts fine, idles fine. After warming up, starts losing power. Sometimes almost cuts out, but doesn't get up to full throttle. I have replaced the carb with new, new spark plug, new fuel filter, new ethanol free fuel, new air filter, removed prefilter, pressure tested fuel lines, removed muffler screen and short tube. I'm about to look at the magneto next. I'm losing my mind. Any suggestions?
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Old 11-29-2012, 09:00 PM
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dutch1 dutch1 is online now
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Have you checked the compression? Anything much less than 100 psi would be suspect. If the compression is acceptable, you may want to check for an air leak in the intake area. Ran across a few with cracks in the isoblock--as the unit heats up the crack expands leading to power loss and lean running condition. Just a thought considering all you've done.
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Old 11-29-2012, 09:44 PM
sven1277 sven1277 is online now
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I will look into those possibilities. The strange thing is this problem is happening on multiple blowers all at the same time. I thought for sure it was bad fuel, so I bought some ethanol free fuel at HD with no improvement. After replacing so many parts on one of the blowers, that was really deflating.
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'05,08 Chevy 3500 Dump
00 Chevy 2500
61" Scag turf tigers
61" Wright zk
ASV SR 70
Takeuchi 135
Kubota 7610 40" rotadarion
20' enclosed 10k lawncare trailer
18' aluminum 12k equipment trailer
35hp Giant Vac leaf loader
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  #4  
Old 11-29-2012, 09:44 PM
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bob bob is online now
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When its running,spray some carb cleaner around the carb & iso block. If it revs up, there's your air leak.
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