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Only start with carb cleaner


Mrdjc

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Demonstrate on your bike :-) carbon build up has absolutely nothing to do with his issue, nor would putting anything on the header do anything whatsoever about removing carbon. Save that sarcasm and bs for bhq fb or huge moron

 

Sent from my SPH-L710 using Tapatalk

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Can't even tell you how many carbs I have fixed by just cleaning the pilots.  People "clean carbs" but never even take jets out and verify they are open.  The pilot holes are so small that even compressed air rarely clears them.  They need a roto rooter job.  

 

 

You might be able to get the bike fired by just pinning the throttle WFO which will start to pull fuel off the mains.  If it fires, you know your pilots are fucked.  

 

 

Brandon

Mull Engineering

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Yes the pilots in both are clean. When I just kick it the bike cranks but when I hold wide open throttle and choke while kicking I get a gurgle sound.

 

When I took off the reeds I noticed one was broken off and missing. I opened the head to see if I can find it and nothing. I bought replacements and changed them out and still nothing.

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This is getting good.

 

What jets do you have in the carbs right now?

Are you getting fuel to the carbs?

What's the average air temp and elevation?

What fuel/oil do you use and what is the pre-mix ratio?

How many ounces of oil to gallons of fuel?

How old is the fuel you're using?

Was it in a sealed container?

What is your air filter configuration?

Please list all your mods.

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^^^  Notes as I understand them. 

 

* Bike was running fine and just quit.  Nearly eliminates jetting, bad fuel, elevation, etc

* Bike seems to run fine when aided with carb cleaner. 

*  Now says reeds have failed.  Not sure if one peddle or what.  That should cause an issue with running for sure. 

 

In many cases, the bike will eject the reed peddle without damage.  I have seen cranks hurt from them but not common.  If reeds are not in place or functioning right, the 360* of open intake duration means intake charge will end up ejecting back through the carb rather than stay in the engine. 

 

If the bike "just shut off", that points to something either catastrophic or acute, not something like "compression is getting low".  I have had people tell me jets are clean before because they blew air through them.  If you did not pull the pilots, physically look up their ass, poke a stick in their ass, and reinstall them, they are not clean. 

 

You say it "acted like it was running out of fuel".  They typically will stutter, and lose one side first, not just drop dead.  What did it do?  If it dropped like a light switch, that tells something.  What you have described can certainly point at electrical too with 20min of riding, then just dies.  CDI, stator, etc. 

 

If that has been done and you KNOW the bowls are filling up, you have something else going on.  A good time to verify that you have spark because some cleaners will go in and just detonate (no spark required).  However, you ID'd a bad reed.  That seems suspect first. 

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It was only one reed flap broke and now gone and it was in the side with the lower compression. I had checked compression with the reed broken and have yet to check it now that it has been replaced. I am running 91 octane with a 32:1 mix for 2 stroke. I have poked , proded and probed those pilots asses! Boiled them blew air soaked in carb cleaner and ran a thin wire threw them. I am now using clear fuel lines so I know gas is getting to the carbs but doesn't seem to be running through. When this first started I had stalled out after almost getting hit by a jeep. Then I kicked it and it started then ran for like 10 seconds. Died. Started again then ran for like 3 seconds. Now not at all. Found a blue wire hanging from the back. I have researched and looks like it should go to the voltage regulator. But I can't find mine.

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There is two blue wires. One goes to tail light and another blue wire goes to the voltage regulator. Voltage regulator stock position is in the rear near the cdi (underneath center of rear fender/grab bar area) to the right of it when looking at the bike from the rear. Its a small silver box with a blue wire.

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