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Author Topic: Why does my bike get moody when I leave it for a few days?  (Read 1356 times)

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Offline ger87410

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Why does my bike get moody when I leave it for a few days?
« on: July 01, 2008, 09:41:59 AM »
CB750 K6

If I run it ever morning, it doesn't complain.  Runs good even when cold.  Choke on only to start.

If I leave it for a few days, she takes a few kicks before she start, requires the choke on for a few minutes before she'll idle smoothly, and generally runs like crap until she gets warmed up.

I keep forgetting to turn off the petcock.  Contributing factor?
Inspection of underneath the bike after sitting reveals no puddles.

Any ideas?
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Offline bryanj

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #1 on: July 01, 2008, 09:44:39 AM »
Todays gas goes "Off" way quicker than when these bikes were built, if you drain the floatbowls and let fresh in from the tank it will start easier. If you leave it several weeks drain the tank and put fresh in
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martino1972

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #2 on: July 01, 2008, 09:57:02 AM »
because bike's are like wife's......try and leave them for a few day's..... ;D ;D
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Offline Burke

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #3 on: July 01, 2008, 09:46:01 PM »
On my 77' 750 I would leave it for a week or more and would start like a dream.
When was the last time you went through the carbs/basic tune up stuff? Most times it is the simple stuff that gets me in trouble. Then TwoTired straightens me out ;D
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Offline Dave-and-his-550

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #4 on: July 01, 2008, 10:12:12 PM »
If this is the case, my bike is dooomed for the junk yard... (hasn't ran in two+ years)  :D
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #5 on: July 01, 2008, 10:27:16 PM »
At least they don't get PMS  :)
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Offline coyotecowboy

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #6 on: July 02, 2008, 01:05:04 AM »
Quote from: RxmanGriff on July 01, 2008, 10:27:16 PM
At least they don't get PMS  :)

or get pissed when you've been riding or looking at other bikes 8)
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Offline Hush

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #7 on: July 02, 2008, 01:16:38 AM »
Buy her flowers or jewelery, seems to work well for women who are neglected, try not to kick her--neither responds well to that! ;D
Seriously your carbs may need a cleanout, we used to run a few squirts of Redex in our two strokes petrol tanks, not sure what to put in a SOHC bike?
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Offline coyotecowboy

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #8 on: July 07, 2008, 07:37:35 PM »
Seafoam would probably work, unless its really gummed up.
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The adventure begins when things stop going as planned - Glen Heggstad

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1981 Husqvarna 430 XC, "Inga"

Offline OldSchool_IsCool

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #9 on: July 07, 2008, 08:05:24 PM »
+1 Seafoam.  Run 2 or 3 tanks with a strong mix (2 or 3 oz per gal, not sure what that would be in metric), then run several tanks at 1oz per gal.  This trick has worked for me!
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Offline HondaMan

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #10 on: July 07, 2008, 08:59:22 PM »
Quote from: ger87410 on July 01, 2008, 09:41:59 AM
CB750 K6

If I run it ever morning, it doesn't complain.  Runs good even when cold.  Choke on only to start.

If I leave it for a few days, she takes a few kicks before she start, requires the choke on for a few minutes before she'll idle smoothly, and generally runs like crap until she gets warmed up.

I keep forgetting to turn off the petcock.  Contributing factor?
Inspection of underneath the bike after sitting reveals no puddles.

Any ideas?

This sounds like classic electrical issues, in the points and condensors. The points may be pitted and blackened, which quickly grows an oxide when parked, especially in humid climates. The condensors used to be paper inside, which drops in capacitance when unused, getting better after use and heat. At least, try replacing the condensors, or points, condensors and plugs.

Or, get one of my ignitions...  ;)  (Sorry, couldn't resist). Starts first time, every time...
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Offline wildcatmahone

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #11 on: July 07, 2008, 09:12:35 PM »
+2 on the seafoam the stuff is magic in a can I strongly recommend running some through  your carbs before anything is changed or adjusted you might get lucky :)
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Offline OldSchool_IsCool

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Re: Why does my bike get moody when I leave it for a few days?
« Reply #12 on: July 08, 2008, 06:01:09 PM »
And if the Seafoam doesn't do it, follow HondaMan's suggestions.  And a BIG +1 on the HondaMan Ignition Module!
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Can I have a motorcycle when I get old enough?
If you take care of it.
What do you have to do?
Lot’s of things. You’ve been watching me.
Will you show me all of them?
Sure.
Is it hard?
Not if you have the right attitudes. It’s having the right attitudes that’s hard.
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