midlifecrisis Posted January 21, 2010 Report Share Posted January 21, 2010 OK, so Im pretty new to the forum, so be nice! I am in the market to get ahold of my second Banshee, its an '01, but there is an issue with it. I am not a hugely technical person, so Im looking for some advice. Keep in mind that the shee is stock other than an exhaust! The banshee is priced right, but it has a seized piston. Im wondering if it is worth rehoning the cylinders and installing new pistons and rings or should I buy a new head and then rebuild from that point? The young fella that I am talking to about it, said that the damage was caused by him riding it in the cold weather (Canadian winters eh!) without rejetting the carbs, is that a possibility or is he full of crap? I wanted to know also, what kind of damage could have been done in the bottom end? He tells me that the piston only has a small score on it. If Im doing the pistons and rings, anything else I should be doing at the same time? Budget is always an issue, this machine is meant to be ridden at a buddys farm every now and then, Im not young enough to ride everyday! Quote Link to comment Share on other sites More sharing options...
00sheerzr Posted January 21, 2010 Report Share Posted January 21, 2010 OK, so Im pretty new to the forum, so be nice! I am in the market to get ahold of my second Banshee, its an '01, but there is an issue with it. I am not a hugely technical person, so Im looking for some advice. Keep in mind that the shee is stock other than an exhaust! The banshee is priced right, but it has a seized piston. Im wondering if it is worth rehoning the cylinders and installing new pistons and rings or should I buy a new head and then rebuild from that point? The young fella that I am talking to about it, said that the damage was caused by him riding it in the cold weather (Canadian winters eh!) without rejetting the carbs, is that a possibility or is he full of crap? I wanted to know also, what kind of damage could have been done in the bottom end? He tells me that the piston only has a small score on it. If Im doing the pistons and rings, anything else I should be doing at the same time? Budget is always an issue, this machine is meant to be ridden at a buddys farm every now and then, Im not young enough to ride everyday! well first of all does the banshee run? that def.could of been the reason for a seizure or meltdown, you will really never know until you get it apart, more than likely the bottom end should be fine unless it was ran really hard or the piston shattered and scraps went everywhere, jetting is the most important thing to keep your bike reliable and if he didnt rejet for the pipes or the cold weather i would love to see what it looks like inside,but for the rite price you can have yourself a nice quad, the top end will run you about 200-250 but after you bore the cylinders you looking at another 100-150 Quote Link to comment Share on other sites More sharing options...
midlifecrisis Posted January 21, 2010 Author Report Share Posted January 21, 2010 Alright Im taking notes on everything, heres some additional info that the kid has just passed on to me, Ive copied it from my email,: "So it was about -15 the day i was out and i had it open for too long i've learned since then, i've always owned 4 strokes before. So the left cylinder seized and i shut it off before it was totally screwed, so it still ran half ass. I brought it home and tore the top end off. The pistons look brand new, just the left one had a little scab on the exhaust side of the cylinder which left a really small score on the cylinder wall. It has a boost bottle with 2 rubber boots which i found had 2 cracks in it, which could have been a big part of the problem. The combination of cold weather, the cracks in the boost bottle, and me bein an idiot and riding it for too long at a high rpm all contributed to the scab i assume. The right crank rod bearing feels beautiful, and the left feels good, but i have been told it may need replaced... just being totally honest. Otherwise the guy before me dumped a tonne of money in this quad and if i wasnt in school and had the money i would definatley rebuild it right away." So what do we think? With him talking about the boost bottle, is he talking about nitrous? Hell, Im not sure if Im ready for that! LOL! Quote Link to comment Share on other sites More sharing options...
00sheerzr Posted January 21, 2010 Report Share Posted January 21, 2010 Alright Im taking notes on everything, heres some additional info that the kid has just passed on to me, Ive copied it from my email,: "So it was about -15 the day i was out and i had it open for too long i've learned since then, i've always owned 4 strokes before. So the left cylinder seized and i shut it off before it was totally screwed, so it still ran half ass. I brought it home and tore the top end off. The pistons look brand new, just the left one had a little scab on the exhaust side of the cylinder which left a really small score on the cylinder wall. It has a boost bottle with 2 rubber boots which i found had 2 cracks in it, which could have been a big part of the problem. The combination of cold weather, the cracks in the boost bottle, and me bein an idiot and riding it for too long at a high rpm all contributed to the scab i assume. The right crank rod bearing feels beautiful, and the left feels good, but i have been told it may need replaced... just being totally honest. Otherwise the guy before me dumped a tonne of money in this quad and if i wasnt in school and had the money i would definatley rebuild it right away." So what do we think? With him talking about the boost bottle, is he talking about nitrous? Hell, Im not sure if Im ready for that! LOL! a boost bootle just replaces the stock crossover tube between the 2 air intakes infront of the carbs, this doesnt really benefit in anyway but making the throotle response better if you carbs are out of sync,hhis reasons for the seizure definitly sounds like that was the reason it grenaded, when the boots tear or rip it cause it to run very very lean and probably melted the piston Quote Link to comment Share on other sites More sharing options...
midlifecrisis Posted January 21, 2010 Author Report Share Posted January 21, 2010 a boost bootle just replaces the stock crossover tube between the 2 air intakes infront of the carbs, this doesnt really benefit in anyway but making the throotle response better if you carbs are out of sync,hhis reasons for the seizure definitly sounds like that was the reason it grenaded, when the boots tear or rip it cause it to run very very lean and probably melted the piston Quote Link to comment Share on other sites More sharing options...
midlifecrisis Posted January 21, 2010 Author Report Share Posted January 21, 2010 Alright, so is it best to eliminate the boost bottle all together and run 2 seperate filters, or 1 single filter that feeds both carbs? I noticed on your posting under your pics, that you are looking to scrap the boost bottle (how and why)? I know my previous GSXR had 4 individual filters! I never had an issue with setup, is it likely to be the same with 2 strokes? If his info is true about him shutting the machine down as soon as he realized what was happening, then is the damge likely to be horrendous? Just because, I obviously wont be able to open up the cylinders before I buy it! Quote Link to comment Share on other sites More sharing options...
00sheerzr Posted January 21, 2010 Report Share Posted January 21, 2010 Alright, so is it best to eliminate the boost bottle all together and run 2 seperate filters, or 1 single filter that feeds both carbs? I noticed on your posting under your pics, that you are looking to scrap the boost bottle (how and why)? I know my previous GSXR had 4 individual filters! I never had an issue with setup, is it likely to be the same with 2 strokes? If his info is true about him shutting the machine down as soon as he realized what was happening, then is the damge likely to be horrendous? Just because, I obviously wont be able to open up the cylinders before I buy it! im going back to the stock carb cross over tube, the tube sits in front of the carbs before the cylinders, i want to go back to the stock tube because if your carbs are synced properly you dont need it and it just clutters the engine compartment and alot of people have problems like you explained when they rip the intake boots and cause a lean condition causing damage to the engine, the boost bootle has nothing to do with the air filters. if worst comes to worst you will need to have the cylinders bored and a new set of pistons, but my real question is if he took it apart and inspected the rods and pistons why did he put it back together? you will be taking a chance whenever you buy something that has internal damage but if you comfortable fixing a 2 stroke engine which is pretty simple if you have done it before it should be a piece of cake, also if you do decide to pick it up to fix tear it apart and post pics there are tons of guys on this forum that are willing to help Quote Link to comment Share on other sites More sharing options...
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