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post #1 of 13 (permalink) Old 07-16-2014, 09:45 PM Thread Starter
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I need more posts before I can post in the appropriate section....

but I don't want to destroy my bike. I cleaned the throttle bodies and K&N filter, now the bike ildes high and backfires A LOT!!

It's a '05 Kingpin 92CI

..any help would be awesome.
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post #2 of 13 (permalink) Old 07-16-2014, 10:02 PM
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Perhaps you have a cracked intake boot, sounds like it could be an air leak.



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post #3 of 13 (permalink) Old 07-16-2014, 10:15 PM Thread Starter
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I have read about that, but just wondering why it would all of a sudden run bad after cleaning the throttle bodies and air filter. I didn't touch anything else....I would think it would run better after the cleaning.
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post #4 of 13 (permalink) Old 07-16-2014, 10:53 PM
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Has anyone ever adjusted the tps? The reason I ask is, when. I bought my '05 Pin. It didn't run right . I cleaned the throttle bodies and it made the bike run way lean. After several trips back and forth to the dealer, it turned out that the tps was adjusted a whole bunch of points too lean. Someone had adjusted it with the Tb's dirty I think, instead of finding the cause of the overly rich condition, which was the TB's were dirty.
They adjusted it and it was good again. They had to fashion up some 02 sensors to read the exhaust gas output since they didn't have an analyzer.
As stated above though, it could be an air leak as well.

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post #5 of 13 (permalink) Old 07-17-2014, 02:18 AM
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A trick to putting off cleaning the TB's is to raise the idle. This is done with Philips head screw driver under the rear left side of the tank. You have to kind of get down there with a flashlight to see it.

Sounds like that's what someone did on this bike. Not saying there isn't another issue like a cracked boot or TPS issue as mentioned but you can at least fix the high idle easy enough.
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post #6 of 13 (permalink) Old 07-17-2014, 07:21 AM
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Did you have your spark plugs out ? Did you hook up your plug wires backwards ? That would certainly cause backfiring .....

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post #7 of 13 (permalink) Old 07-18-2014, 10:56 PM Thread Starter
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Quote:
Originally Posted by broggyr View Post
Perhaps you have a cracked intake boot, sounds like it could be an air leak.
Can I use the old school ' spray some carb cleaner around the intake ' method to see if there is a leak in there?
It ran fine, didn't mess with anything that should cause it to run strange.
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post #8 of 13 (permalink) Old 07-18-2014, 11:10 PM Thread Starter
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Quote:
Originally Posted by Tarzan View Post
Has anyone ever adjusted the tps? The reason I ask is, when. I bought my '05 Pin. It didn't run right . I cleaned the throttle bodies and it made the bike run way lean. After several trips back and forth to the dealer, it turned out that the tps was adjusted a whole bunch of points too lean. Someone had adjusted it with the Tb's dirty I think, instead of finding the cause of the overly rich condition, which was the TB's were dirty.
They adjusted it and it was good again. They had to fashion up some 02 sensors to read the exhaust gas output since they didn't have an analyzer.
As stated above though, it could be an air leak as well.
It's possible the tps has been adjusted, I've only had the bike for 3 months. Is the adjustment something I can do myself?
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post #9 of 13 (permalink) Old 07-18-2014, 11:12 PM Thread Starter
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Quote:
Originally Posted by BBob View Post
A trick to putting off cleaning the TB's is to raise the idle. This is done with Philips head screw driver under the rear left side of the tank. You have to kind of get down there with a flashlight to see it.

Sounds like that's what someone did on this bike. Not saying there isn't another issue like a cracked boot or TPS issue as mentioned but you can at least fix the high idle easy enough.
I'll check the idle adjustment, but this wouldn't cause excessive backfires would it?
The bike ran good before I cleaned the filter and TB's.
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post #10 of 13 (permalink) Old 07-18-2014, 11:18 PM
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After seeing this pop up in my inbox I got to thinking maybe the cleaning job wasn't as good as you thought it was. Maybe you need to go back in there and do it again with some good carb cleaner spray. The sensors in there can be fickle and if you did more harm than good during your first time at bat maybe a second time will fix it...

All things being equal and this is all you did; it's logical to assume the issue is the last place you worked on. It might be worth putting some clean rags down the TB's and use some brake cleaner. The brake cleaner will evaporate quickly. Or maybe use some carb cleaner then brake cleaner. At any rate be careful because the cleaners can play hell on anything painted if left on a painted surface for too long.

If you do go back in there to try again; please let us know if this works.
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