Qwik Silver II Carb help
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Tourer
Joined: Jan 2011
Posts: 350
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From: Reidsville, NC
Qwik Silver II Carb help
Bike has Edelbrock Qwik Silver II carb. I have never seen one nor has anyone around here so I have no shop help available. When bike is cold choke is not enough to get it cranked (it has a choke not an enrichner). You have to remove the air cleaner an cover the throat with your hand. After about 10 minutes of cranking it will fire and quit. It does this 10-15 times and then will start up. I then must hold the throttle about 1/8 open and run it about 45 sec before it will idle. Around 1000 rpm. After it idles and warms up (400-500 rpm) the bike suddenly increases idle to 1200 rpms. If I turn back on the idle adjuster it drops to 200 rpm and dies. Edelbrock has been no help, called their 800 # and got directed to a diagram. They discontinued this carb so no one in tech can help. Has anyone here ever worked on these? Should I scrap it and go with a CV?
Outstanding HDF Member
Joined: Mar 2010
Posts: 2,877
Likes: 2
From: Hallsville, Tx.
Bike has Edelbrock Qwik Silver II carb. I have never seen one nor has anyone around here so I have no shop help available. When bike is cold choke is not enough to get it cranked (it has a choke not an enrichner). You have to remove the air cleaner an cover the throat with your hand. After about 10 minutes of cranking it will fire and quit. It does this 10-15 times and then will start up. I then must hold the throttle about 1/8 open and run it about 45 sec before it will idle. Around 1000 rpm. After it idles and warms up (400-500 rpm) the bike suddenly increases idle to 1200 rpms. If I turn back on the idle adjuster it drops to 200 rpm and dies. Edelbrock has been no help, called their 800 # and got directed to a diagram. They discontinued this carb so no one in tech can help. Has anyone here ever worked on these? Should I scrap it and go with a CV?
Road Master
Joined: May 2008
Posts: 803
Likes: 3
From: Collegeville, PA
For all the trouble and effort you are going to have to go through to get that carb to work, I would scrap it and pick up a used CV. I've seen like-new CV's on Ebay for around $100. Jets for the CV are available everywhere. THe Edelbrock just sounds like it is too far off to even know where to get started with it.
Tourer
Joined: Nov 2007
Posts: 334
Likes: 2
I run one of these on my '93
Bike has Edelbrock Qwik Silver II carb. I have never seen one nor has anyone around here so I have no shop help available. When bike is cold choke is not enough to get it cranked (it has a choke not an enrichner). You have to remove the air cleaner an cover the throat with your hand. After about 10 minutes of cranking it will fire and quit. It does this 10-15 times and then will start up. I then must hold the throttle about 1/8 open and run it about 45 sec before it will idle. Around 1000 rpm. After it idles and warms up (400-500 rpm) the bike suddenly increases idle to 1200 rpms. If I turn back on the idle adjuster it drops to 200 rpm and dies. Edelbrock has been no help, called their 800 # and got directed to a diagram. They discontinued this carb so no one in tech can help. Has anyone here ever worked on these? Should I scrap it and go with a CV?
Cruiser
Joined: Oct 2009
Posts: 233
Likes: 0
From: Canada...west coast
Just a bit trivia...re: Quicksilver carburetors.....
In 1995, at the Edelbrock booth in Sturgis, I had the pleasure to meet Red Edmonston......
He told us that his Quicksilver carb had been bought out by Edelbrock the year before, and Edelbrock had then hired him to stay on in the R&D department.
My friend and I were both riding FXRs, and Red had told us that most of the testing done on various Edelbrock products, and the Quicksilver, was done on FXR test bikes. We were able to talk to Red one on one for 40 minutes or so......when asked about good engine combinations, pipes, cams, compression ratios/headwork, etc.....Red would just smile and say that he couldn't tell us what the R&D department was running on their FXRs.....but, he did tell us what combinations didn't work....very enlightening.....
Red was very open and straightforward, one of those genuine people that you have the pleasure to meet every once in a while.....
In 1995, at the Edelbrock booth in Sturgis, I had the pleasure to meet Red Edmonston......
He told us that his Quicksilver carb had been bought out by Edelbrock the year before, and Edelbrock had then hired him to stay on in the R&D department.
My friend and I were both riding FXRs, and Red had told us that most of the testing done on various Edelbrock products, and the Quicksilver, was done on FXR test bikes. We were able to talk to Red one on one for 40 minutes or so......when asked about good engine combinations, pipes, cams, compression ratios/headwork, etc.....Red would just smile and say that he couldn't tell us what the R&D department was running on their FXRs.....but, he did tell us what combinations didn't work....very enlightening.....
Red was very open and straightforward, one of those genuine people that you have the pleasure to meet every once in a while.....
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
Check the throttle shaft for play. As previously stated they had one hell of a spring on them and they had a tendency to wear out the shaft/housing causing play. This play would make the idle change and drive a mechanic absolutely nuts. I was never a fan of these carbs. Hope this helps.
Thread Starter
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Tourer
Joined: Jan 2011
Posts: 350
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From: Reidsville, NC
Shaft is ok. First thing I checked. Had an S&S B with a worn shaft. Running a can of sea foam thru it to see if it helps. If not I'll go to a cv. No indy shops up here want to fool with it.
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Thread Starter
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Tourer
Joined: Jan 2011
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From: Reidsville, NC
Gonna go with the CV. Edelbrock is no help. Was on the tech line with them 2 hours today. First 2 guys I talked to never heard of this carb. 3rd guy kept sending me stuff on the performer series. Two completely different carbs. He kept saying they are basically the same. So thanks everybody.
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Stage I
Joined: Jun 2011
Posts: 1
Likes: 0
From: Toms River NJ
Edelbrock
Greetings Bama..... I just joined the forum. I am running one of these carbs on my '85 FLH. Yes, the return spring is killer. This carb was on when I purchased the bike. I've put some miles on it and haven't had any other issues. I haven't had this bagger for long and didn't need to dig into it anywhere as of yet, but I have fiddled with the idle already. It does appear to be unstable at idle. I'll get a high idlle and then blip the throttle and ensure the throttle returns fully and get a correct idle. I have been putting off pulling the air cleaner cause I'm thinking I'll want to fix/buy something before I throw it back together..... $$$$ I have had a weber on a nice swept fwd tunnel ram intake before. I'm keeping my edelbrock until I buy another weber...... Let me know how it works out for you.... I'll take pic's when I pull mine.