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-   -   Help bike won't start! (https://www.hdforums.com/forum/sportster-models/819834-help-bike-wont-start.html)

shanvhere Oct 29, 2012 11:13 PM

Help bike won't start!
 
I have a 1200 2006, and this is what happened before it stopped.

I started the bike before college, as I was driving, I stopped at a stop sign, the engine felt like it was back firing. Thought it was because it was low on gas or just starting. I got fuel and while getting fuel it over flowed cause the pumped didn't auto stop. Went to school fine ran smooth and parked it. 2 hours later I went to start it, put the choke on and started.

All of a sudden the RPM started to go lower and lower then died. So I figured i was the choke, so I started it again and it would go then die. Now all it does it just crank and not start. Please someone give me some tips!

Roni Oct 30, 2012 02:49 AM

So, you have a bike with a carb. I believe '06 was the only year where you could get either a carb or an EFI bike.

In order to get combustion, you need three elements: fuel, spark and compression. Well, air also, but unless you've stuffed tennis balls into your breather, that isn't an issue.

Since you think it's fuel issue, I would start by checking whether there is actually fuel in the carb. On most carbs, there's a bleeder valve on the float bowl. I suggest opening that up and seeing if any fuel runs out.


Another simple thing to check is for spark. Pull off the spark plug boot. Hold it close to the contact on the plug, turn the bike over and verify that you are getting an arc from the plug boot to the plug contact.

Let us know what you find out.

shanvhere Oct 30, 2012 06:56 AM


Originally Posted by Roni (Post 10498599)
So, you have a bike with a carb. I believe '06 was the only year where you could get either a carb or an EFI bike.

In order to get combustion, you need three elements: fuel, spark and compression. Well, air also, but unless you've stuffed tennis balls into your breather, that isn't an issue.

Since you think it's fuel issue, I would start by checking whether there is actually fuel in the carb. On most carbs, there's a bleeder valve on the float bowl. I suggest opening that up and seeing if any fuel runs out.


Another simple thing to check is for spark. Pull off the spark plug boot. Hold it close to the contact on the plug, turn the bike over and verify that you are getting an arc from the plug boot to the plug contact.

Let us know what you find out.


Sorry yes it's carb, I pulled the breather out and it was clean, I pulled the plug out and it had spark. I honestly think it is not getting fuel I would lift the float bowl and it would do nothing, if I think the float bowl is what it is, my carb is this one is it that device the I push up and it slides down?

http://www.harley-performance.com/stage-1-carb-kit.html

chappy99 Oct 30, 2012 07:21 AM

Did you try to start it with the gas cap off.

cooperk851 Oct 30, 2012 08:13 AM

Did you turn the gas on?

shanvhere Oct 30, 2012 11:46 AM


Originally Posted by chappy99 (Post 10498881)
Did you try to start it with the gas cap off.


I did not i'll try this when I get home.

shanvhere Oct 30, 2012 11:46 AM


Originally Posted by cooperk851 (Post 10499019)
Did you turn the gas on?

I tried the reserve and the on switch unless theres another switch

cHarley Oct 30, 2012 01:11 PM


Originally Posted by shanvhere (Post 10499715)
I tried the reserve and the on switch unless theres another switch

The stock petcock is vacuum controlled, there's a small black vacuum hose connected to the backside of the petcock. If that hose comes off or is leaking, fuel won't flow from the petcock.

With your A/C cover off so that you can see into the carb throat, you should be able to see fuel squirting into the throat when you twist the throttle. If you don't see fuel squirting, you're not getting fuel to the carb.

Dual-Linkerts Oct 30, 2012 01:21 PM


Originally Posted by cHarley (Post 10500002)
The stock petcock is vacuum controlled, there's a small black vacuum hose connected to the backside of the petcock. If that hose comes off or is leaking, fuel won't flow from the petcock.

With your A/C cover off so that you can see into the carb throat, you should be able to see fuel squirting into the throat when you twist the throttle. If you don't see fuel squirting, you're not getting fuel to the carb.

Yea no fuel can come out of the fuel valve without vacuum.
Get a can of starting fluid and give that carb a shot of it and see if it starts that will elliminate any electrical issues.

shanvhere Oct 30, 2012 01:40 PM


Originally Posted by Dual-Linkerts (Post 10500030)
Yea no fuel can come out of the fuel valve without vacuum.
Get a can of starting fluid and give that carb a shot of it and see if it starts that will elliminate any electrical issues.

I seen a hose from the bottom of the carb that goes down behind the where my right foot is and is not connected to anything, I thought this was normal. Is that what your are taslking about?


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