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Posted

Hey there! I love this forum! I’ve learned a Lotta really good stuff. I have a bad air leak leak tested it and it wouldn’t hold pressure at all. I found air coming out of this hole  Next to a bolt on the block right below the coolhead intake where hose is connected. How should I proceed with fixing the issue? I tried to post a pic, but it says file is too large. Thanks!! 

 

2001 Yamaha Banshee 

FMF exhaust, Trinity 2-1 intake, coolhead, force reeds

 

Posted

I don't see a hole and it's really hard to be sure about the orientation of the picture. It looks like the head is off and this is a shot of the two cylinder nuts closest to the reed cages and coolant hose that attaches to the head. Nothing in this photo should have a hole in it.
It looks like there are spots of weld and a bead of weld on it. Am I seeing that right?
Mark where the hole is and take a photo showing more of the motor. Maybe place your fingertip where the hole is.

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Posted

Almost looks like the reed cage bolts were too long and they hit the cylinder. Has a similar mark on the other cylinder too. Post a more clear picture. 

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Posted
Got ya. Yeah that may be it. Here is another picec6d283f1ba7d775deaa0881e1eff287.jpg


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Yeah, that's wierd. Take it to a good welder and have those spots filled in.

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Posted

I meant post a more clear picture of the actual spot where it is leaking. take one from above showing both inside cylinder base studs with the leaking spot. 

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