Re: u need more than fuel and spark.. - Saab 900 Bulletin Board - Saabnet.com
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Re: u need more than fuel and spark..
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Posted by trog100 [Email] (more from trog100) on Fri, 17 Jan 2003 07:10:41 Share Post by Email
In Reply to: Ignition problem? 900 carburettor car. Help., Pit Brodowski, Fri, 17 Jan 2003 03:35:30
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u need a good spark and it needs to be in the right place at the right time.. and u need the correct mixture of fuel and air.. cranking an engine with a poor spark will cause engine flooding.. thats your wet plugs.. once this point is reached your engine aint gonna fire..

coils can fail and cause a weak spark.. not often (once in my motoring lifetime) but it can happen.. if u can lay your hands on another one trying swopping it..

keep at it but remember the point i made about excessive cranking causing the engine to flood.. once this point is reached even if u get your spark the engine isnt likely to fire..

can u disable the auto choke on your carb if so try doing it.. i think u are right with your firing order but check each lead thru fron cap to plug..

your problem is 99% likely to be a simple one.. also a weak battery thats struggling to crank the engine over can cause weak spark problems..

trog100

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