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Choke problems, hopefully just cable.
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Kat
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Choke problems, hopefully just cable. - September 28, 2006, 07:31 AM

My choke started acting funny when I fully engaged it (pulled the lever towards me) then pushed it back but the engine continued to rev. I began playing with the cable (fiddling, bumping it with pliers) and the engine quieted down. This was repeatable later in the day (choke stuck fully on, but quieted down when cable was loosened, then tapped gently).

Obviously something is stuck. Hopefully it's just the cable. I have a shop manual for my bike, so I'm convinced I can figure this out, but some advice from you smart people would help.

How do I lube a cable? Must I first remove the cable? Do I need special equipment? Bambam linked me to a cable luber, but I have no idea how you'd use such a thing...

http://www.virtualinventories.com/vi...le%20Luber.gif

Is there a better way to determine if the problem is the cable or something farther in?

Also, my engine is surging while idling. Have I fouled my spark plugs with a bad air mixture?

Normally my cruiserhubby could help me with all this, but he's giving up cigs right now, and he's impossible to deal with when it comes to stressful situations. And motorcycle maintenance is stressful to him. *sigh*. Any support is appreciated.


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September 28, 2006, 08:24 AM

It could very well be a cable lube issue. I'd also check to make sure the cable isn't binding on anything. The Kat's choke cable is actually easy to remove. You should be able to do it with the carbs in place. There is a slide on top of the rack of carbs that the choke cable actuates. A shot of WD-40 on that slide may yeild some results as well.


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September 28, 2006, 09:26 AM

I'd get a tool like the one bambam mentioned. They work well and aren't expensive. You should be able to pick one up at a local motorcycle shop.

You shouldn't have to remove the cable completely to lube it. You will have to disconnect it from the choke lever. I am not sure what you mean by "bumping it with pliers" but be careful not to grab the cable with anything. Any slight deformity in that cable (kink, or expansion) and the cable is probably done and will need to be replaced. I don't know how difficult it is to get to the carbs and lube the slide that Scot mentioned, but that sounds like a good idea as well.

While you are at it, lube your throttle cables as well. You do not want a problem with them.

Last edited by rddy; September 28, 2006 at 09:31 AM..
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Kat
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September 28, 2006, 11:59 AM

Okay. How do I use that thing Bambam suggested. I can see where the cable goes, but how does it work? Does it work the lube through the cable? I'm having trouble visualizing it.

I've never seen a carb in my life. Hopefully the shop book will be my guide (and when in doubt, buy the hubby some nicorette gum).

I'll lube every cable I own if I can just figure out the basics.


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Kat
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October 1, 2006, 07:58 PM

How do I remove the choke cable from the lever assembly? I thought it would be easy, but it doesn't seem obvious to me at all!


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October 1, 2006, 08:16 PM

you have to unscrew the left handle bar switch. The cable booger (I don't know what the lead thing on the end of the cable is called) slips into the plastic thumb lever.


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Kat
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October 1, 2006, 08:18 PM

Do I have to remove the whole lever assembly?


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October 1, 2006, 08:19 PM

The cable booger seems to disappear under the lever plastic... There's a screw underneath the whole thing, but I don't know what it holds together. Is that the screw I want?


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October 1, 2006, 08:22 PM

I don't know. I am really bad at getting the screws I want.


There should be 2 holding the switch together. You'll need to look under the assembly. It will be two phillips head screws. They might be recessed. There may be a third screw holding a small metal collar that is steadying the choke cable. I haven't monkied with a Katana in like a million years. I am trying to remember if my Bandits were the same.


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October 1, 2006, 08:22 PM

Kat Ive never worked on your bike. However most carb bikes work the same.
There are adjustwers at both ends of the cable. Make them as loose as possible.
I dont know about your bike but, usually the ends have mushroom heads on them.

Once loose get the ends out of their positions

Get them loose and free. The housing is part of the system do not cut it.

Dont pull the old cable out yet. Make sure everything holding it in is loose. Tape or string together the old to the new.
Then gently pull the new through with the old one


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October 1, 2006, 08:28 PM

I don't think she's actually trying to remove it yet, just seeing if it's bound or if she can lube it.


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October 1, 2006, 08:30 PM

why are you replacing the cabe ... you shouldnt have to just to lube it.

the tool i showed you will do that if you can get to the end of the cable. if you cannot then removethe left handlebar housing and gently take the cable out of the housing .. that should allow you to lube the cable.

replacing the cable should be last on your list of attempts for this


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October 1, 2006, 08:41 PM

Quote:
Originally Posted by bambam
why are you replacing the cabe ... you shouldnt have to just to lube it.

the tool i showed you will do that if you can get to the end of the cable. if you cannot then removethe left handlebar housing and gently take the cable out of the housing .. that should allow you to lube the cable.

replacing the cable should be last on your list of attempts for this

Maybe I am reading wrong, but I don't think she's removing the cable. Just getting to the end of the cable so she can lube/inspect it. Which is what I was giving directions to do. To get to the end of the cable on the Katana, you must dissassemble the switch assembly.


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October 1, 2006, 08:56 PM

that's ok ... mike was telling her how to change it. i doubt that she needs to change it i think some lube will work wonders


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Kat
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October 1, 2006, 09:32 PM

Lube didn't do it. I'm having the exact same problem. The bike revs high when I pull the cable taught, but continues to rev high as I release the choke and doesn't relax unless I play with the cable (twist the "tighten/loosen" screw assembly or just tap lightly on the cable). Even now, it doesn't fully relax. Something's stuck, and it doesn't seem to be the cable alone. It may still be the cable (the bike IS 11 years old), but it might be something much worse, I fear.

Anyone know what's at the OTHER end of that cable? Is there something I haven't tried? I'm going to find out, I'm afraid. I'm going to go ahead and replace some cables while I'm at it, but carbs scare me. Hopefully cable replacement will be easy and will be all I need, but if it's something sticking further in, you can just kill me now. **sigh**


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