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1991 evo

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  #1  
Old 10-10-2016, 01:42 PM
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Default 1991 evo

I have a 91 Heritage. If the outside temp is 50 or less it will not fire. Battery fully charged turns over like gang busters. If it warms up to 55 it fires no problem. It smells like it is Flooded. Any ideas????
 
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Old 10-10-2016, 09:29 PM
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you might get more info in the EVO section...I have a 99 an it's getting harder an harder to keep running as the temp drops...tonight I sprayed some starting fluid around the intake with the throttle turned up a tad an found I have an intake leak. Cool air packs the combustion chamber denser so your mixture will be a little lean, a little more lean when it's cold.
 
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Old 10-11-2016, 08:27 AM
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My 98 was so cold natured it became a joke with some bros... I was able get it started, but geeze it would take a while to get it running smooth. Played with the choke cable and the carb settings and things settled down. Stupid question maybe, but has your choke cable broken or loose?
 
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Old 10-11-2016, 11:48 AM
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My '94, with three different motors and two carburetors over the years I've owned it is very cold blooded below 50F. It will start if I prime it with a few squirts of the accelerator pump and full choke, but it will stall once it burns off the priming shots. It may do this three or more times until it will finally give in and stay running.
 
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Old 10-11-2016, 03:27 PM
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also once it's running let it warm up...hammering on it without a good warm up can cause problems.
 
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Old 10-15-2016, 08:36 AM
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the choke is actually a enrichment device.
it works with the throttle closed.
If you are twisting the throttle while cranking , it doesn't do so well.


"cold start" a couple of throttle blips , then leave the throttle closed while cranking
 
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Old 10-15-2016, 11:06 PM
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I had a new 91 in an unheated garage in Mass. Don't recall any cold start problems and I rode all year. The enrichener **** was a bitch to get right. If you left it out too long you fouled plugs, not long enough it would cut off ajnd sputter. I switched the carb out for an S&S Super E and never had a problem for the next 8 years.
 
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