bajakirch 
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Bike: 1983 CB550SC
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Join Date: May, 2009
"Get on your bikes and ride!" - Freddie Mercury
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« on: June 25, 2009, 11:32:55 AM » |
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The other night I was riding home from work. I had opened up the choke to start the bike and turned it down to half-choke at the start of my ride, like I often do. Once the bike warms up, I usually turn the choke off. That night I forgot until I reached a small town I have to drive through. I throttled down in 4th gear, then realized that the bike was traveling at about 25 mph with no throttle. I noticed the choke at that time and turned it off. Immediately the bike began losing speed and I had to throttle up. I played with this a bit and found that I could set the choke at a point where, in 4th gear I could maintain a speed of about 30 mph on a level grade.
I got to wondering if I could do this in other gears to set up a sort of cruise control for the bike. But I didn't start experimenting because I wasn't sure if I was doing something that I shouldn't.
Any thoughts?
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It's not a big motorcycle
Just a groovy little motorbike
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Wahrsuul
I'm lost in thought...it's unfamiliar territory.
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Yellow is the fastest color
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« Reply #1 on: June 25, 2009, 11:48:31 AM » |
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That's a bad thing. With the choke on, the bike is running REALLY rich. Beyond just wasting fuel, it fouls the plugs, and can cause the chrome on the headers to discolor.
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96 NightHawk 750
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Laminar
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« Reply #2 on: June 25, 2009, 12:51:30 PM » |
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Cruise control for bikes does exist, and you can get it for under $35. No need to fiddle with the bike's operating conditions.
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It's not what it is, it's what it does.
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ROJ
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Bike: 1982 CB750SC
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« Reply #3 on: June 25, 2009, 02:03:24 PM » |
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Wahrsuul's right.. depending on how long you were running at 30mph with the choke on, you may want to pop out the spark plugs and clean them. Running super rich can also have a very bad effect on the vavles as well, but only after prolonged exposure.
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82 CB750SC
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Custom82Hawk
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« Reply #4 on: June 25, 2009, 02:12:33 PM » |
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my buddy uses his choke in first gear on his crotch rocket to stand up and stick his arms out like an idiot who wants to be the chick from titanic
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ROJ
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« Reply #5 on: June 26, 2009, 06:29:20 AM » |
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my buddy uses his choke in first gear on his crotch rocket to stand up and stick his arms out like an idiot who wants to be the chick from titanic
Couple of things to that 1- I hope he's wearing full gear while doing that 2- If his bike is Fuel Injected.. thats bad, injectors are hard to clean and expensive to replace 3- If he does it often plugs are probably also fouled |
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82 CB750SC
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bajakirch
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Bike: 1983 CB550SC
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"Get on your bikes and ride!" - Freddie Mercury
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« Reply #6 on: June 26, 2009, 06:59:18 AM » |
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Thanks for the info. That's why I asked. I figured there was some reason not to do it, or everyone would do it. Only did it for under a mile. But I suppose I should pull the plugs anyways, since I rode it for about 10 miles on half-choke.
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It's not a big motorcycle
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ninskrillz
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« Reply #7 on: June 26, 2009, 01:22:00 PM » |
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So fouled plugs can just be cleaned rather than replaced? I have a set of NKG's that i bought about 3 monthes ago, an I suspect they are fouled.
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Laminar
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« Reply #8 on: June 26, 2009, 03:01:07 PM » |
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As long as the electrodes are still intact, you're fine with cleaning them off and verifying the correct gap.
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ninskrillz
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« Reply #9 on: June 26, 2009, 05:52:25 PM » |
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what do you mean by verifying the correct gap?
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Laminar
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« Reply #10 on: June 26, 2009, 11:42:04 PM » |
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what do you mean by verifying the correct gap?
Also, they make special spark plug gap gauges. |
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It's not what it is, it's what it does.
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