Yamge Posted March 12, 2004 Report Share Posted March 12, 2004 Hey fella's new to the forum, wondered if I could ask a couple questions. I'm working on my brother's 01 Banshee and unfortunately he sucked her full of swamp water. I cleaned carbs and drained oil and it will start but the right side cylinder sounds rough. I've changed plugs and know I'm at the point with a rebuild. I did a compression test last night and I'm only getting about 115psi on both pistons, I thought this was awful low, everything I've been told that should be above 170-180 to be considered good. The engine was cold so I didn't have the best ring seal. The engine hasn't been rebuilt since he bought it new, he is still on the original front tires and on his 2nd set of rears so he doesn't have that many hours in my opinion. He doesn't have health insurance so he doesn't risk injury. Any help would be appreciated and also any good deals out there on top end rebuild kits. Quote Link to comment Share on other sites More sharing options...
shannonpurdy Posted March 12, 2004 Report Share Posted March 12, 2004 Check out Rocky Mountain ATV. Wiseco pistons are $65 ea for any size (Ijust bought 0.050" over last week. Local shops get upward of $75 to $95 depending on size. If you need a gasket kit I think they go for about $15. If you ned to get them bored and or honed shops usually charge $40 to $50 a hole (around here anyway) or you could do it yourself and save a little cash. Quote Link to comment Share on other sites More sharing options...
fixitrod Posted March 12, 2004 Report Share Posted March 12, 2004 Welcome to the forum. To tell you the truth 115lb's isn't bad at all. Let us know what your elevation is. When you suck it water, it's a good idea to turn it upside down with the spark plugs out and kick it over. That will allow most of the water to be flushed out. The biggest trouble with water is that it can bend a rod. Not super common, but it can happen. You can also blow the head gasket. Check all the connections in the wiring for corrosion, make positive sure you got the carbs clean. I dought not much if any actually made it into the carbs unless it was in the fuel tank. Put new gas and plugs in. Make sure the coil wires are in good. Fire it up, blip the throttle for a little bit. You don't want to rev it to high in case water is in there. If it doesn't smooth out after a little while you may have more damage... but I dought it with the compression being so close in each cylinder. Keep at it. I dought very much if any debris made it in if you had a filter on there... just the water. Make sure the pipes aren't full of water too. The won't be for long if you get it running Quote Link to comment Share on other sites More sharing options...
Toomey Banshee Posted March 12, 2004 Report Share Posted March 12, 2004 115 per cylinder is not bad at all, assuming this is a stock motor and head. New is 130 at sea level. A general rule of thumb is a difference of over 10 lbs. between cylinders or under 100 lbs. per cylinder before a rebuild. You may be able to get another season out of her, and you might not. If it were me I would wait, however. Good luck. Quote Link to comment Share on other sites More sharing options...
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