Go Back   Motorcycle Forum > Motorcycle.Com General Discussion > Motorcycle Mods and Maintenance

Reply
 
Thread Tools
Old 02-28-2008, 04:06 PM   #1
PCOBB4033
Registered Member
 
Join Date: Feb 2008
Posts: 3
Default Sounds terrible

I recently got my bike out of storage. Bike started up and sounded great. I replaced the brake light and still everything okay. 2 days later I started it up and it sounded like an old mower. Turn signals now flicker. Could this be a battery or spark plug problem???
PCOBB4033 is offline   Reply With Quote

Sponsored Links Remove Advertisements
Motorcycle Forum
Advertisement
Old 02-28-2008, 08:04 PM   #2
The_AirHawk
Founding Member
 
The_AirHawk's Avatar
 
Join Date: Jun 2007
Location: Leanin' Tower O' P-P-P-P-POWAAAAAAAAA!!!!
Posts: 11,490
Default

Turtle in the Mud Valve.



Charge the battery (or replace it if it won't fully-charge, then charge the new one), clean and tighten each of the battery connections, paying particular attention to where the negative cable attaches to the frame.

If it still does the crappy-running thing, you've got spooge in your carbs. 90% chance they'll need removed to clean the pilot jets, but you can try an in-tank cleaning product called "Seafoam" first. Most Yamaha shops carry it, and I've seen it in a Wal-Mart or two.
__________________
Parfois, on fait pas semblant
Sometimes, it's not pretend
Oderint Dum Metuant
Let them hate so long as they fear
политики предпочитают безоружных крестьян
Politicians Prefer Unarmed Peasants
Nothing to see here, Citizen. Move along now...
The_AirHawk is offline   Reply With Quote
Old 02-29-2008, 07:00 AM   #3
pushrod
Founding Member
 
pushrod's Avatar
 
Join Date: Nov 2001
Location: Baja 'Bama
Posts: 3,642
Default

+1 on the carb bowl mung.

You don't mention the make/model of bike, but, assuming it's carb'd, the same answer applies.

You'll probably have to clean the carb(s) mechanically. SeaFoam, while great stuff, usually can't unclog jets.

When I worked at a boat shop, every spring saw a mess of folks bringing in their boats and/or motors, 'cause they'd (usually) start, but die when you put them in gear. Munged up carbs. Some of the "fuel" we'd drain outta the carbs and tanks would almost make you gag.

And I'm not even going to bring up water in the fuel. Oh, wait...

Next time you put the bike away for a nap, treat the fuel system (not just the tank) with a fuel stabilizer like StaBil. It's also available at Walmart. I use it in all my gas-powered machines.

Get 'r done, and get riding!
__________________
You would not understand,
this is not how I am...

I have become -
Comfortably Numb.
pushrod is offline   Reply With Quote
Old 02-29-2008, 07:38 AM   #4
sachiwilson
Women Riders Moderator
 
sachiwilson's Avatar
 
Join Date: Jun 2007
Location: San Diego
Posts: 1,609
Default

Guys, edjumacate me. Why would crap gas cause the lights to flicker?
__________________
Frappé LaRue
*Safety Queen*
Are you a Rounder?

Sarnali: "what could be more useless than arguing with a deaf female lawyer????"
sachiwilson is offline   Reply With Quote
Old 02-29-2008, 07:46 AM   #5
pushrod
Founding Member
 
pushrod's Avatar
 
Join Date: Nov 2001
Location: Baja 'Bama
Posts: 3,642
Default

Sachi, I'm assuming he meant when the bike is sitting there farting and gagging that the lights flicker.

That's because the engine isn't turning fast enough to generate sufficient voltage/current.
__________________
You would not understand,
this is not how I am...

I have become -
Comfortably Numb.
pushrod is offline   Reply With Quote
Old 02-29-2008, 08:18 AM   #6
The_AirHawk
Founding Member
 
The_AirHawk's Avatar
 
Join Date: Jun 2007
Location: Leanin' Tower O' P-P-P-P-POWAAAAAAAAA!!!!
Posts: 11,490
Default

Quote:
Originally Posted by pushrod View Post
Sachi, I'm assuming he meant when the bike is sitting there farting and gagging that the lights flicker.

That's because the engine isn't turning fast enough to generate sufficient voltage/current.
Same-same. But, I suggested the battery connections first, figured I'd start him out on the easiest.

He can always hope. And where there's Hope, there's change under the cushions. ('cuz she wears these loose slacks that keep spillin' it out of her pockets)
__________________
Parfois, on fait pas semblant
Sometimes, it's not pretend
Oderint Dum Metuant
Let them hate so long as they fear
политики предпочитают безоружных крестьян
Politicians Prefer Unarmed Peasants
Nothing to see here, Citizen. Move along now...
The_AirHawk is offline   Reply With Quote
Old 02-29-2008, 08:28 AM   #7
sachiwilson
Women Riders Moderator
 
sachiwilson's Avatar
 
Join Date: Jun 2007
Location: San Diego
Posts: 1,609
Default

Quote:
Originally Posted by pushrod View Post
Sachi, I'm assuming he meant when the bike is sitting there farting and gagging that the lights flicker.

That's because the engine isn't turning fast enough to generate sufficient voltage/current.
My belief is that when you have adequate battery charge, it won't matter if the bike is farting and gagging. The lights won't flicker. So . . . that is why I question the carb suggestion. But I am always ready to reconsider on this stuff.
__________________
Frappé LaRue
*Safety Queen*
Are you a Rounder?

Sarnali: "what could be more useless than arguing with a deaf female lawyer????"
sachiwilson is offline   Reply With Quote
Old 02-29-2008, 09:09 AM   #8
sarnali2
Aging Cafe` Racer

 
sarnali2's Avatar
 
Join Date: Jun 2007
Location: Sittin' down by my window, lookin' at the rain.
Posts: 8,719
Default

Quote:
Originally Posted by sachiwilson View Post
My belief is that when you have adequate battery charge, it won't matter if the bike is farting and gagging. The lights won't flicker. So . . . that is why I question the carb suggestion. But I am always ready to reconsider on this stuff.

Alternators and regulators/rectifiers don't usually charge at low rpm, if the bikes popping and gagging at below normal idle speed the lights will pulse as the regulator kicks in and out.
__________________
"Carpe` Throttelum -Loud Suits Save Lives"

"He said he's farting because of his medication"...
sarnali2 is offline   Reply With Quote
Old 02-29-2008, 09:29 AM   #9
sachiwilson
Women Riders Moderator
 
sachiwilson's Avatar
 
Join Date: Jun 2007
Location: San Diego
Posts: 1,609
Default

Got it . . . I think.
__________________
Frappé LaRue
*Safety Queen*
Are you a Rounder?

Sarnali: "what could be more useless than arguing with a deaf female lawyer????"
sachiwilson is offline   Reply With Quote
Old 02-29-2008, 12:09 PM   #10
ejis
Founding Member
 
ejis's Avatar
 
Join Date: Jun 2007
Posts: 285
Default

Sachi - It takes a certain amount of electrical power to make the engine run. At very low rpms, the charging system alone doesn't necessarily have the juice to do it, so the battery gets used. The load on the system causes the voltage to drop and the lights dim.
ejis is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off