volvo63' Posted December 17, 2011 Report Share Posted December 17, 2011 I just bought a banshee two weeks ago. I was told that it was supposed to be a 4mil with a 421 eleminator kit. I noticed when I went to look at it that it had the stock jugs. So I asked the guy about it and he said that it was just bored out. I didn't know whether to believe this or not, but I bought it anyway because it was just $2000. It is a 2000 model with, t5s, trinity 2 into 1 carb adapter, either a 35 or 36mm kehien, prodesign coolhead, new clutches, renthals, lowering kit, msr clutch, dg bumber and grab bar, and three sets of wheels and tires. Anyway, I rode it for about a week. Then one day I was trying to catch my buddies and noticed that it was running on just one cylinder. Then it just died. I just got done tearing it down yestarday and both pistons were totally melted. On top of being blown up, it was the stock crank and only a 65mm bore. Then I just happened to notice that it had an aftermarket timing plate, and it was set at 10 degrees. Also, someone had tried to port the cylinders with a hand file. I just bought a new a new set of stock cylinders and the piston kits. So now I need to know what the timing should be set on and about what size jets that I need. Also, my water pump impeller was starting to melt. I was wonder if adding one of the billet impellers with the stock radiator causes electrolysis to eat the impeller. Quote Link to comment Share on other sites More sharing options...
Zwiser Posted December 18, 2011 Report Share Posted December 18, 2011 most people run a 4 degree timing advance, and adding a billet impeller is a very good idea, i run one from chariot performance. make sure you do a leak down test after you get her all together Quote Link to comment Share on other sites More sharing options...
volvo63' Posted December 18, 2011 Author Report Share Posted December 18, 2011 (edited) I forgot to add that it also had a set of works shocks, so I think that it was well worth $2000 anyway. Edited December 18, 2011 by volvo63' Quote Link to comment Share on other sites More sharing options...
J.J. Posted December 18, 2011 Report Share Posted December 18, 2011 Live and learn. Still, not the end of the world. Get yourself a Clymers repair manual before you start the engine work. Not too sure about the single carb jetting, but you should be able to come up with the numbers when you search the Jetting & Exhaust section. Timing should be ok up to 4 Deg. Post some pics! Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted December 18, 2011 Report Share Posted December 18, 2011 ah that sucks man, people are generally shit and all liars at least you know where they live. billet impeller will be fine with stock rad. i usually see electrolysis around the head studs. +4 should be fine, depending on fuel and compression you use. dunno about the single carb, id throw 2 on. Quote Link to comment Share on other sites More sharing options...
volvo63' Posted December 18, 2011 Author Report Share Posted December 18, 2011 (edited) Thanks guys, I'll post some pics after I get it all put back together. I've already got a clymer repair manual. I was going to go back to two carbs, but the guy that is helping me is a certified omc, mercruiser, and evinrude technician, and he said that it would be in my best interest to just stick with one carb unless I went to a big bore. Also, I am running low on money right now because some guy was going about 70 in a 45 and t-boned me. But I am just 15 and the only witnesses left before the cops showed up, so it was ruled as my fault. We both had liability, but I am having to pay for his anyway to keep my insurance down. I've just had a bad two weeks. Also, I am currently running 93 at 32:1, but I am going buy the local shop to see what they charge for 104 and 110. The guy helping me said that we are going to be setting the compression around 130. Edited December 18, 2011 by volvo63' Quote Link to comment Share on other sites More sharing options...
Jereme6655 Posted December 18, 2011 Report Share Posted December 18, 2011 Thanks guys, I'll post some pics after I get it all put back together. I've already got a clymer repair manual. I was going to go back to two carbs, but the guy that is helping me is a certified omc, mercruiser, and evinrude technician, and he said that it would be in my best interest to just stick with one carb unless I went to a big bore. Also, I am running low on money right now because some guy was going about 70 in a 45 and t-boned me. But I am just 15 and the only witnesses left before the cops showed up, so it was ruled as my fault. We both had liability, but I am having to pay for his anyway to keep my insurance down. I've just had a bad two weeks. Also, I am currently running 93 at 32:1, but I am going buy the local shop to see what they charge for 104 and 110. The guy helping me said that we are going to be setting the compression around 130. wow.....gotta admit...for you being 15 you sure seem to know a decent amount. looks like someone has been paying attention on the site....good job. With 130 psi you wont be needing anything more than 93. 125psi i usually what is attainable with stock cylinders after a rebuild. Quote Link to comment Share on other sites More sharing options...
volvo63' Posted December 19, 2011 Author Report Share Posted December 19, 2011 wow.....gotta admit...for you being 15 you sure seem to know a decent amount. looks like someone has been paying attention on the site....good job. With 130 psi you wont be needing anything more than 93. 125psi i usually what is attainable with stock cylinders after a rebuild. Thanks. I just know a little because I was raised around cars and machinery. I was running a fork lift when I was six. This guy that I was talking about taught me how to build a motor. Whatever you have to do to a boat, it is 10 times easier on a car, 100 times on a four wheeler. Quote Link to comment Share on other sites More sharing options...
muggzy Posted December 19, 2011 Report Share Posted December 19, 2011 wow.....gotta admit...for you being 15 you sure seem to know a decent amount. looks like someone has been paying attention on the site....good job. With 130 psi you wont be needing anything more than 93. 125psi i usually what is attainable with stock cylinders after a rebuild. I'm at 1000 ft elevation with 65mm pistons and stock stroke. I had 146 psi compression with the 22cc domes (stock equiv) but I only run 93 pump fuel. x2 on the Clymer's Manual, it'll be the best $30 you ever invest on your new toy I'd also start off conservative with and go with zero timing advance for starters. Good luck! Quote Link to comment Share on other sites More sharing options...
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