Hello everyone I am new to the board so I will start out by saying hello.

The next thing is my daughters 2008 Suzuki LT-Z50 4 stroke. Before the last time we went riding I cleaned out the carb and all was good. Good idle and ran fine. We got out and she rode it for 2 days (and 2 tanks of gas) without any problems and on the third day the quad would just not start. I changed the spark plug cleaned out the carb again changed the pilot jet and still nothing. The spark plugs arcs againt the head when it is pulled out and the plug was wet with fuel when I took it out. I took the air filter off and took off the exauhst restrictor to make sure nothing was clogging air going in or out. Not really sure what to check next or how and i really cannot afford to take it somewhere and pay them 100.00 just for them to tell me what is wrong with it. I also do not want to just starting throwing new parts at it until I find the bad one either. Any help would be greatly appreciated before I throw this thing off of a cliff

 

Have you checked the air filter and also tried another spark plug? And are you sure the petcock is working fine?

 

Yes I actually took the air filter out to make sure there was not a blockage, and I tried two new spark plugs as well as the orignial one. I also ran a hose from the petcock to a jug and fuel flows freely when put on the prime setting...

 

I would completely tear the carb apart and clean it out. As it doesn't take mouch to clog up a jet. Don't feel bad i had a time with my carb also. Slow jet and petcock was my problem.

 

Update.....
Did somemore checking today and took it to a friends father that works on bikes and quads and took him all of about five minutes to figure out the problem...
The quad had no compression and we found that the intake valve is stuck open. Not to sure if something got stuck in there to keep it open or if the valve is bent. Now need to take the head off to make sure there is not anymore damage to the valve seat or anything else. Wish me luck...

 

Wow, that sucks indeed. I do wish you luck on it. Let us know how it turns out.