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dreamaker
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« on: August 07, 2009, 04:27:03 AM » |
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Has anyone ever had problems with ICM ? If so, do they just go dead or do you have intermittent problems. If intermittent what was the cure, can there be a problem if contacts are dirty. I have a slight flutter when I cruse and it bothers me. I have done everything that can be done to the carburetion system to clear it up. I could be riding and hear the flutter, then stop for a light and when I take off it may run just fine. Can a sync cause this ? Its usually idle to about 2000rpm. And if it is cold and I ride 3rd gear out to about 3500rpm it will start to break up/miss.
Dan
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« Last Edit: August 07, 2009, 04:38:32 AM by dreamaker »
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Jeff K
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« Reply #1 on: August 07, 2009, 04:37:36 AM » |
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We need more details. A Stock ICM?
I Don't believe failures are common with stock modules. I believe connection issues have been found, and pickup issues, but not so much with a stock ICM.
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dreamaker
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« Reply #2 on: August 07, 2009, 04:46:04 AM » |
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I am using a stock I/S ICM on a standard. The bike ran great last year and after the winter it seemed to run kinda off. At first I thought I was getting anal, but sometimes when I let off the throttle and it backs off I hear a slight occasional pop or like it wants to back fire. Now understand most people around me might not notice it, but I do. The thing that makes me wonder about the ICM is I use to have a Dyna 3000 and sometimes the bike acted like it was running out of gas, so I figures it out and replaced the Dyna with a I/S ICM and had no problems afterwards.
Dan
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« Last Edit: August 07, 2009, 04:54:58 AM by dreamaker »
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R J
Member
Posts: 13380
DS-0009 ...... # 173
Des Moines, IA
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« Reply #3 on: August 07, 2009, 05:20:33 AM » |
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The only ICM's I have heard of giving problems, are the ones that have been played with.
Now, you say it ran fine when ya put it away for the winter.
1st thing I would do is look for corrosion on terminals. These little ladies, well anything that sets not used everyday has a tendency to corrode up.
Start at the battery and move forward in the wiring harness, one or 2 places that seem to corrode are in the starter relay connection under the right side cover, and another one is the engine ground on the block, this one is in the bolt hole, so take the cable off & have a look see.
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44 Harley ServiCar   |
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Jeff K
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« Reply #4 on: August 07, 2009, 06:01:15 AM » |
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Popping on deceleration is mostly cause by leaky exhaust gaskets, or leaky intake gaskets.
Or Vacuum leaks, which would also cause a rough idle.
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dreamaker
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« Reply #5 on: August 07, 2009, 06:57:09 AM » |
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Here is the thing, I'm thinking out loud. It's not a loud pop, it just sounds like it wants to pop, does that make sense. Also it doesn't always do it, its there and then its not. It make me think it goes lead for a bit. Just put all new seals, o-rings, jets and hoses. I will check the exhaust gaskets. Right now I made the mistake of taking the ground off the block to clean, but was already clean. Is Honda writing comedy now, because taking off and putting on that cable is a joke. I've seen hart transplants go easier.
Dan
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98valk
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« Reply #6 on: August 07, 2009, 09:21:07 AM » |
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stock petcock diaphragm is worn causing an intermitted lean condition.
search my handle on installing a snubber after repairing the petcock.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
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dreamaker
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« Reply #7 on: August 07, 2009, 10:10:15 AM » |
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My petcock is new and I vacuum checked it and it holds for a while. But I think I found my problem. I decided to pull and clean my pilot screws and clean the orifice area. When I took off the intake tubes I noticed a tinny, tinny o-ring sitting on top of the engine. In the beginning of the season I cleaned the pilots and one of the washer/o-ring fell off and I didn't notice it. May have flipped off when I was putting it in. I replaced it and readjusted them. I can't believe something that small could cause that much problem, but it did. So anyway, I just took it for a test run and it sounded even, the tach needle is not bouncing, idle is good. Now I have just got to take my brain out of anal gear. So bottom line is, I had dirt in the tank and washer/o-ring was missing. Problem solved !! Now I am going to check or re-sync the carbs. Thank You all for all your help !!!!! Dan  |
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« Last Edit: August 07, 2009, 10:26:42 AM by dreamaker »
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F-106
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« Reply #8 on: August 07, 2009, 10:40:40 AM » |
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I have a stock standard ICM you can try if you wish. I upgraded to the I/S one. It is just sitting on my shelf. Also check you clamps around the intake tubes coming out of the carbs going into the heads. I have noticed as my bike gets older the more i have to keep tightning them. i get a trun or two on them every month or so. This will take up any air leaks you might have and you will notice a differance in the way thr bike runs.
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BonS
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« Reply #9 on: August 07, 2009, 04:03:35 PM » |
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When I took off the intake tubes I noticed a tinny, tinny o-ring sitting on top of the engine.
Wow, what luck to find the o-ring on top of the engine. How long would you have been troubleshooting if it had just blown away; forever maybe? Congratulations! |
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dreamaker
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« Reply #10 on: August 07, 2009, 06:15:37 PM » |
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I probably would have noticed right away because I was going to check and clean the pilot screws. But I would be wondering where the o-ring/washer went. Luckily I have extras. Took it for another test run and it ran good, no breaking up, pop or miss.
Dan
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« Last Edit: August 07, 2009, 06:18:34 PM by dreamaker »
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