BigRed350x Posted February 14, 2006 Report Share Posted February 14, 2006 Maybe you sucked water (melted snow) into that side. Put new plugs in and run it then chop to see if you are lean or not. Double check compression, clean your carbs, try switching everything from left to right and see if the problem follows. Carbs, Boots, Reeds, plug wires, etc. If you have a banshee friend borrow some of their parts and see if it still does it. Pretty much what everyone is saying. I would lean more towards the lean condition myself. I ride in a lot of snow and have problems like that from time to time when I get reall rough in the snow. Usually its water in my gas or some stupid simple thing like that. Quote Link to comment Share on other sites More sharing options...
austind Posted February 15, 2006 Report Share Posted February 15, 2006 i would check the pilot jets to see if they have trash in them,i had that same problem once or twice with my banshee until i put a in-line filter in Quote Link to comment Share on other sites More sharing options...
woodro77 Posted February 15, 2006 Author Report Share Posted February 15, 2006 just did another compression test , right cylinder 140 psi, left cylinder 10-15 psi SHIT how the hell did this happen? two questions , can i just do top end on one side( top end is brand new) and if i do,i dont want it to happen again . 140 psi is like new ? (stock head ,stock carbs ,tors removed, just pipes) live sea level n.y. also would this cause over heating Quote Link to comment Share on other sites More sharing options...
Fastrat Posted February 15, 2006 Report Share Posted February 15, 2006 (edited) Did you make sure you torqued the cylinder and head nuts again? After a rebuild, it it necessary to retorque them after the first ride. The heat will cause metal to expand and contract and you may lose your torque, thus losing the seal and letting it suck in air making it really lean. I would try retorqueing everything first. If the torque is good, I would pull the cylinder on that side to inspect it. Later Edited February 15, 2006 by Fastrat Quote Link to comment Share on other sites More sharing options...
woodro77 Posted February 15, 2006 Author Report Share Posted February 15, 2006 Did you make sure you torqued the cylinder and head nuts again? After a rebuild, it it necessary to retorque them after the first ride. The heat will cause metal to expand and contract and you may lose your torque, thus losing the seal and letting it suck in air making it really lean. I would try retorqueing everything first. If the torque is good, I would pull the cylinder on that side to inspect it. Later 474039[/snapback] the head and cylinder nuts are all torqed corectly will pull aprt to see what it looks like, still want to know why it happened? Quote Link to comment Share on other sites More sharing options...
Wicked98Shee Posted February 15, 2006 Report Share Posted February 15, 2006 this definately sounds like a lean conditition, bein the left cylinder i'd be lookin at air boots and left crank seal. Good luck! Quote Link to comment Share on other sites More sharing options...
Fastrat Posted February 15, 2006 Report Share Posted February 15, 2006 this definately sounds like a lean conditition, bein the left cylinder i'd be lookin at air boots and left crank seal. Good luck! 474076[/snapback] Yeah, Definetely inspect the boot and crank seal when the cylinder is off. Quote Link to comment Share on other sites More sharing options...
woodro77 Posted February 16, 2006 Author Report Share Posted February 16, 2006 just took off head off and there is a 1/4 inch hole in the top of the piston , what the hell caused that , lean or timing off Quote Link to comment Share on other sites More sharing options...
fastbanshee8 Posted February 16, 2006 Report Share Posted February 16, 2006 Sounds like it was very lean. Possibly an air leak. Quote Link to comment Share on other sites More sharing options...
Fastrat Posted February 16, 2006 Report Share Posted February 16, 2006 When you get it back together, you need to do a leakdown on that side. Then I'd recheck all my boots and jetting. Quote Link to comment Share on other sites More sharing options...
woodro77 Posted February 17, 2006 Author Report Share Posted February 17, 2006 When you get it back together, you need to do a leakdown on that side. Then I'd recheck all my boots and jetting. 474735[/snapback] how do a leak down test and what tools do i need? Quote Link to comment Share on other sites More sharing options...
Fastrat Posted February 17, 2006 Report Share Posted February 17, 2006 Check out this former post http://www.bansheehq.com/forums/index.php?...topic=28184&hl= Basically, all you are doing is applying vacuum or pressure(your choice due to availability of what tools you can get) and making sure that your engine is sealed up well enough. If you lose pressure/vacuum over ten minutes or so, one of your seals is leaking and you engine will suck in air. Just make sure it's not leaking at any of the temporary seals you installed to do the test. Quote Link to comment Share on other sites More sharing options...
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