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Your thoughts on engine trouble please.

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Old Mar 21, 2009 | 08:52 PM
  #1  
hatchetman's Avatar
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Default Your thoughts on engine trouble please.

I have an 88 Electra glide classic. new drive belt, clutches, brakes, rotors, all new oils, not the cheap stuff and I waited for no frost on the roads!
Yesterday I rolled it out, Fired it up & off I go to work. Fresh fuel by the way. It's way better than last year because of the clutches etc but it is, or I think it is lazy.
If Im rollin at around 3000 rpm, I have good power, no hesitation. If Im down around 2500 rpm, it bogs a little and eventually goes. I had 1 back fire through the pipes on accelleration. This is a 1340, all stock except for washable steel screen air filter. it has a kein carb. the only other thing I did which might effect it's performance was run a 1 inch hole saw through the baffles. The pipes sound better but not as loud as strait pipes. I didnt do this so it would sound loud, I did this because several people told me that it would breath a little better.
So, bottom end is void of power, even taking off from a stop is not great. Higher end like 60 to 70 miles per hour, it is very responsive.
Any suggestions?
Bike has 70,000 km or 45,000 miles on it.
Thanks!
Hatch.
 
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Old Mar 21, 2009 | 09:31 PM
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Just my opinon,and you know how they are, everybody has one. But I think with the 1 in. hole, you lost your back pressure and your low end tq.Your going to either have to rejet your carb or get more back pressure.
 
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Old Mar 21, 2009 | 09:33 PM
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O.K., Do I rejet richer or leaner??? That sounds like a fairly easy test. I can get a different jet on monday.
 
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Old Mar 21, 2009 | 09:34 PM
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Don't know for sure but do know an engine needs enough back pressure to scavenge the old gasses out for the intake. Maybe the hole ...
 
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Old Mar 21, 2009 | 09:38 PM
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How long did it sit? With or with out fuel in the carb? Maybe a fuel issue on the intermedite circuit.
 
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Old Mar 21, 2009 | 09:44 PM
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Now you have me thinking. Im going out to the shop to look through the manual at the carb. I might pull it off tonight & see what's what!
 
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Old Mar 21, 2009 | 09:55 PM
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Did this start right after the pipe work???
I have a 2006 which I cut several holes in my baffles cause I was going to get new pipes anyway but it did not change performance at all!!!!!
If it set for a while I would suspect bad fuel!!
 
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Old Mar 21, 2009 | 10:07 PM
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No, It was lazy last year in the bottom end. Fuel is new & besides the 60 days that it sat torn apart for repairs, I did have it running every week.
 
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Old Mar 21, 2009 | 10:18 PM
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You might have to put torque cones in the pipes to get your back pressure back. But rejetting will also help.
 
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Old Mar 21, 2009 | 10:43 PM
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This is where i started with the carb jetting.

195 main/48 slow/3 turns out air fuel mixture screw
 
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