Other back firing???

[Austin]

So I just completed my x2 build last night, and I went to start it and everytime it would try to fire it would back fire. I think it would be considered back firing. Its just huge bangs out the back and it blows my stinger part of the pipe out of the coupler. It has a 750 with 650 electronics in it.

I had the ski together a week ago and when I tried firing it over it would fire correctly but my gaskets on the intake side were leaking so I had to pull the motor to replace them. I thought it had week spark too, so put a different cdi in last night before I tried fireing it for the first time and thats when it started with the big bangs so I heard that maybe the cdi wasn't correctly wired in so I put my old one in and it still doing the same exact thing ( back firing)

ANY HELP WOULD BE GREAT, I WOULD LOVE TO TAKE IT OUT TODAY FOR THE FIRST TIME SINCE I STARTED MY BUILD!

 

[icecoled007]

Did you do this??

http://www.jetskimechanic.com/home/e107_plugins/content/content.php?content.27

 

[Austin]

yeah that was all done when I had the engine built.

Found the problem The little crank key from the fly wheel to crank was shattered! Now I just need to find another one of those!

But I have another problem now, but now it wont even crank over, It made a single click the first time I hit the starter and then nothing at all I check and my battery Is fully charged. cables look good everything is connected wright.