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02-19-2007
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 cylinder boring i was just wonering if u were to bore the cylinder and get the right size piston it would work,other than getting a new jug,rite?if so what else wouold i have to buy besides the piston kit      |
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02-19-2007
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| Why do you make so many threads about one subject? not to be a dick. Yes you can bore your cylinder. You need to get an oversized piston first. Take your jug to a machine shop and get them to check the roundness on your cylinder and get their recommendation on what bore you should go to. Then order a wiseco piston kit of what oversize they recommended, along with a top end gasket kit for any year blaster. Take the piston and jug to the Machine shop and get them to bore it to specifactions. Put it together and your done.
__________________ Place use to be my escape from daily hardship...thanks for ruining it. |
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02-19-2007
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| also make sure ur machine shop angle cuts ur ports so that ur rings dont catch on a port
__________________ MONSTER ENERGY.. unleash the beast 2000 Yamaha Blaster had a blown crank, so im starting all over -Engine (still in the works): 2006 bottom end with oil injector blocked off, Airsal cylinder, Boyeseen reeds, FMF Fatty pipe with custom PC2 silencer, and CFM airbox only thing needed is a 34 or 35mm carb with boot 2000 Polaris 500 XCSP 45th Anniversary Special -Fox racing shox |
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02-19-2007
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| when i get it bored what should i tell the guy doing it. to bore it to what size |
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02-19-2007
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| take the cylinder and stock piston to a repair shop they will tell you what size you need to go up to, order it. when it comes in take the piston and cylinder to machine shop and they will do the rest.
__________________ '00 Banshee Toomey T-5's W/Hush kit, 200W Adjustable stator,Lightened flywheel, K&N's w/outerwears, reed spacers, Boyseen reeds, TORS eliminated, ported and polished, Extended swingarm, durablue axle and bearing carrier. Renthal bars, Aftermarket rear caliper and rotor, Stainless steel brake lines, Frame and suspension all powdercoated yellow. White race cut front fenders and low profile rears.  1995 Blaster Frame, 03+ style hood, and tank covers all PINK. White fenders. ITP rims.All fresh. It's my wifes. Looking for a GOOD deal on some exhaust for it! 2000 Eton Impuls 50--'86 Yamaha Tri-zinger 60 2 Seater go kart w/rollcage--'93 Honda Z50R |
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02-19-2007
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| the problem is that im sending it off to a guy that races dirtbikes and hes gonna do it for me,so ill just send the old piston and jug and tell him to do w/e it takes to get it running.then ill buy the new piston when he sends it back |
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02-19-2007
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| well first off have some one mic it with a dial caliper to find out what bore it is, then go up to the next size if it doesnt look to scored, if it is, then go a half a milimeter over from what it is. stock bore is 66mm so if its really scored (scratched) go to 66.5mm, sometimes you can get away with 66.25 instead, but thats if its not really damaged best bet tho is to go a half a mil over, because you nvr kno if a quarter mil will clean it up
__________________ MONSTER ENERGY.. unleash the beast 2000 Yamaha Blaster had a blown crank, so im starting all over -Engine (still in the works): 2006 bottom end with oil injector blocked off, Airsal cylinder, Boyeseen reeds, FMF Fatty pipe with custom PC2 silencer, and CFM airbox only thing needed is a 34 or 35mm carb with boot 2000 Polaris 500 XCSP 45th Anniversary Special -Fox racing shox |
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02-19-2007
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| what size piston will i need if i go up to 66.5mm |
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02-19-2007
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__________________ 88 Banshee under construction right now.. 87 TRX 250R  03 Blaster being built to eat 450's  |
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02-19-2007
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| Quote:
__________________ FMF Gold Series Pipe FMF silencer Oil injecton block off 270 Main jet 3rd notch on needle Uni air filter airbox lid removed 14 tooth front sproket FMF Rad Valve reed cage and reeds |
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