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There is, periodically, one down near San Diego. Notices appear here well in advance.

Where in SoCal are you, and are there some specific things you want to do?

Tom
 

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Discussion Starter #3
my problem

I have a friend that needs a doohickey
I am having a problem on a 2005 it runs for 15 to 30 then stops after 10 min it will start up after 5 min and run for 10 to 30 then stop over and over again? Did my doohickey about two years ago but I lost contact
I live in Fontana
 

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colacacher-

I have the doo tools, we could probably arrange a doo party sometime, somewhere.

Your '05 we can probably help with here on the forum.

To start, it sounds like it's running off of the gas in the bowl. When it dies, some gas dribbles into the bowl over the course of 10 minutes, and then it'll run again. Could be a defective vacuum side on the petcock.
It could also be that your tank vents are bad, starving the engine of fuel. After it quits, the tank eventually returns to atmospheric pressure, and off she'll go again.

Other possibilities are more dastardly, so let's begin with those.

Do either of these scenarios sound likely?

Anybody got anything else?

Tom
 

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I installed my vacuum pump on the petcock and it will not hold a vacuum i can pump it up to 20in and it takes 20 to 30 sec to go to 0. Can I bypass the defective vacuum side on the petcock?
Yes, it is easy to do. Simply make a blanking plate and a fuel resistant gasket and install them in place of the vacuum bits. Then block off the vacuum port on the carburettor. You can get away with just installing a gasket, but it may tend to leak. You don't need to ask me how I know that...

Another , perhaps simpler, route (especially if you don't want to mess with fabbing up a plate) is to install a Yamaha Raptor petcock at a cost of about $25.

Details are here.

Tom
 

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Discussion Starter #7
i made a mistake I installed my vacuum pump on the petcock vacuum line and it will hold a vacuum 20" for 15 min and still at 20"
 

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OK. When you open the petcock with the pump on it I presume gas comes pouring out.

Try going for a ride with the gas cap open to see if it is a tank venting issue.

Tom
 

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Discussion Starter #9
i open the petcock with the pump on it and gas comes pouring out.
its not a tank venting issue i left the cap open and the sane thing.

i think it is somthing elec? but i have know idea.
thinks for all your time
 

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Discussion Starter #10
i open the petcock with the pump on it and gas comes pouring out.
its not a tank venting issue i left the cap open and the sane thing.

i think it is somthing elec? but i have know idea.
thinks for all your time
what do i need to check next? thank for your help
Ron Stead
 

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Ron -

It dies suddenly and completely? Or sputters and runs crappy?

It may be a heat related electrical problem.

I'm trying to think of a way to check for spark after it has died, but let's assume that it doesn't have spark.

It could be the pick-up coil - can you check that?

Do you have access to another bike that you could swap out the igniter/CDI on?

Anybody got anything else?

Tom
 

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Sorry...sounded like the cap vent to me. That's my go to.
 
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