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2004 LT-Z250 Noises, TAKE A LISTEN!


dag1911

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Hey guys! I am in need of some serious help with my little quad. Take a listen to the video and see if you can decipher why it is running like it is. I have yet to figure it out.

I have cleaned and rebuilt the carb with OEM parts and jets. Put in a new petcock, fuel filter, and fuel line. Replaced the computer. Put on a new coil, wire, and cap. Replaced the spark plug. Checked the compression and valves. Everything was in spec with the manual. I am at a serious loss. Please let me know your thoughts. :mad:

[ame=http://www.youtube.com/watch?v=3DsTZ23nK6o]2004 Suzuki LT-Z250 - YouTube[/ame]

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  • 2 weeks later...

Ah yes, I could see that for sure. Nah it starts with just a tiny tap of the starter button. Its always been that way. Plus, this one doesnt have a pull starter.

In the 2nd video I just posted you can hear it idling like a champ right off the bat. When I give it gas is when I encounter the problems. Check it out and let me know what you think.

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The only way the fuel is getting pumped is by mother nature, gravity. There isnt a fuel pump.

But I agree, I think its a fuel issue...perhaps jetting. Not sure cause it ran fine at this elevation prior and it has stock jets in it. So one would think that is a fine base point to start from with minor adjustments thereafter.

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Yeah there is. New Yamaha style petcock and got rid of the vacuum port on the petcock and blocked off the port on the carburetor. Also on the cap I have a good vent hose coming off of it.

I took the line off the carb and let the fuel run through the petcock, filter, and line and it ran freely. No blockages.

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