Bareley starts/no idle HELP????????

[yb200]

just take the head and cylinder off find out what size piston is in it and buy the next size up....take the piston and cylinder to a shop and get it bored for that piston....slap it back together....all you need is a few wrenches a needle nose pliers and a torque wrench...

 

[yb200]

this might help ya some to:

http://www.blasterforum.com/do-yourself-20/how-rebuild-your-topend-683/

 

[2001Blaster]

So the 240 kit is a bad idea? I figure if it's the same amount of work to bore it out to 66.25mm as it would be to go to 72mm I wouldn't mind spending the extra $10 or so on parts. Wiseco 66.25mm kit= $126.95 shipped, Vito's 72mm piston=$110 shipped +Vito's big bore gasket kit=$28 shipped I don't have to take my motor out either right? Maybe just the plastics and exhaust for more room?

 

[yb200]

So the 240 kit is a bad idea? I figure if it's the same amount of work to bore it out to 66.25mm as it would be to go to 72mm I wouldn't mind spending the extra $10 or so on parts. Wiseco 66.25mm kit= $126.95 shipped, Vito's 72mm piston=$110 shipped +Vito's big bore gasket kit=$28 shipped I don't have to take my motor out either right? Maybe just the plastics and exhaust for more room?

in order to do a big bore you need a bb sleeve:

Yamaha Blaster Big Bore LA Sleeve Cylinder Sleeve 88-07:eBay Motors (item 370290314081 end time Dec-13-09 09:05:17 PST)

or the whole bbk:

YAMAHA BLASTER 200 VITOS BIG BORE CYLINDER KIT 240 Z:eBay Motors (item 200402014866 end time Dec-04-09 04:09:15 PST)

you can just bore out your stock sleeve and put a bbk piston in it wont work..

 

[mr_3_0_5]

dont get the cast vito"s piston.
just get a wiseco and bore one size up..

 

[fioz600r]

dont get the cast vito"s piston.
just get a wiseco and bore one size up..

X2 on thatI:I..................

 

[2001Blaster]

Ok thanks for the heads up. Would boring it one size up give the same power as two sizes up? I'm guessing there's no power gain, but going one size at a time allows for more rebuilds before the cylinder's no good. I would also guess that it would be smart to pull the old piston out first to see it it's stock 62mm or higher before ordering a new one just incase it's been rebuilt from prior owners.

 

[mr_3_0_5]

Ok thanks for the heads up. Would boring it one size up give the same power as two sizes up? I'm guessing there's no power gain, but going one size at a time allows for more rebuilds before the cylinder's no good. I would also guess that it would be smart to pull the old piston out first to see it it's stock 62mm or higher before ordering a new one just incase it's been rebuilt from prior owners.

you got it man..

 

[yb200]

Ok thanks for the heads up. Would boring it one size up give the same power as two sizes up? I'm guessing there's no power gain, but going one size at a time allows for more rebuilds before the cylinder's no good. I would also guess that it would be smart to pull the old piston out first to see it it's stock 62mm or higher before ordering a new one just incase it's been rebuilt from prior owners.

yup pull the piston and go one size up from that

 

[2001Blaster]

Ok I got the piston out and it has a number on top, 573M06700. Does that mean it's 67mm? 1mm over stock? Should I go to a 67.25mm or stay with whatever size mine is and just have my cylinder honed? The walls look fine, but I'm thinking just to go up a size to be safe as directed by you guys. I guess I can even take the cylinder to a shop and have them look at it and tell me what size the hole is and while they're boring it/honing it I can order the right piston. Would make more since? Sorry if I ask a lot. My mom came over for dinner and my wife left me to cook so I didn't get to check my reeds, but while everything's off I might as well upgrade to carbon fiber reeds and get rid of the tors cap.

 

[2001Blaster]

Ok thanks for the heads up. Would boring it one size up give the same power as two sizes up? I'm guessing there's no power gain, but going one size at a time allows for more rebuilds before the cylinder's no good. I would also guess that it would be smart to pull the old piston out first to see it it's stock 62mm or higher before ordering a new one just incase it's been rebuilt from prior owners.

Sorry, stock's 66mm not 62mm. No one caught that haha, it was a test, j/k.