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Bike will start, but dies unless throttle is increased???

Old May 18, 2016 | 09:11 AM
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Default Bike will start, but dies unless throttle is increased???

Just wondering if anyone has come across something like this.


Just got a call from a friend, says her bike will start, but unless she increases the throttle, it dies. In other words, it won't idle.


Not positive, but think she has TBW


Sudden problem, been running fine.


I'm gonna go over and look at it, any ideas?
 
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Old May 18, 2016 | 09:14 AM
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Fuel starved? Bad fuel pump ? Really old spark plugs?
 
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Old May 18, 2016 | 09:27 AM
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If it's by wire it could a number of things. Position sensor, fuel pump, filter are what pops to mind right off.
If it's new enough to be tbw the it's probably got a way to read trouble codes. Might be a good place to start.
 
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Old May 18, 2016 | 09:36 AM
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Thanks guys, I'll let you know if I find the problem.
 
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Old May 18, 2016 | 09:56 AM
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If it's been sitting for some time and the fuel has degraded then it could be that simple. The simplest solution to a problem is usually the correct one. Since we don't know the details like if it's been sitting, how long since it's been run or was fuel preserver added before parking the bike we can only speculate till the cows come home?
 
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Old May 18, 2016 | 08:14 PM
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Turned out her bike was a 2006 Night Train. Fuel Injection, but cable throttle. Couldn't find the problem, trailered it to the dealer. Ended up being some grit in the fuel valve where the disconnect is at the bottom of the tank. Apparently the valve wasn't opening completely and the engine was starving for fuel. Tech said it wasn't the first time he's seen it.
 
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Old May 18, 2016 | 08:46 PM
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Thanks for posting the resolution. You never know what may help someone else. When you're searching for help, finding the end of the story is always a good thing.
 
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Old May 19, 2016 | 06:54 AM
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try cleaning off the speed sensor, when dirty it can cause all kinds of issues...
 
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Old May 19, 2016 | 07:48 AM
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Originally Posted by Talldog
Turned out her bike was a 2006 Night Train. Fuel Injection, but cable throttle. Couldn't find the problem, trailered it to the dealer. Ended up being some grit in the fuel valve where the disconnect is at the bottom of the tank. Apparently the valve wasn't opening completely and the engine was starving for fuel. Tech said it wasn't the first time he's seen it.
On that note, I'd personally run some Seafoam in the gas for a few tanks.

JMO
 
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Old May 19, 2016 | 07:59 AM
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Originally Posted by F150HD
On that note, I'd personally run some Seafoam in the gas for a few tanks.

JMO



Agree, also found out the bike was stored last winter with an almost empty fuel tank. She won't do that again.
 
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