cub cyclinders

[NickisGod]

over winter i would like to upgrade my jugs to a larger bore, or just replace them all together. my 2 stroke education is still poor, but i do understand the basic principals. over winter here in buffalo ny, i dont wish to ride my new rebuild banshee(chassis&componets). so what i was deciding was how i should go about making it faster for next years riding. i wanted to make the cc noticeably bigger, and most people i see on the site use the 421 cub kit. now for the stupid questions part. i understand some modifications require a new crank, witch requires spliting the case and depending on how big you go youll need case boring. i do not wish to bore my case, and dont even realy want to split my case. so the easy solution is send my motor away and it comes back all done up and me broke having no idea what to do if something goes wrong.

 

 

so to wrap this up, i wanna know does a 421 cub kit require a new crank (im sure it does) & how easy is it to install. is there anything that i personaly can not do at home because of inexperiance or incorrect tools? just a side note, im not some retard with money who wants to go fast. not many people my age have funding to even offord a banshee, let alone mod one. any advice will be appreciated. thanks

[Bansh-eman]

a 4mil is the only crank that you can drop in without trenching the cases. If you wish to do the work your self get a clymers manula and follow it step by step, 2 strokes are very simple motors. The part that you wont be doing your self is the port work. Depending on what your trying to get out of the motor and the type of riding will determin what setup you would benifit from the most.

[bigboybanshee]

If you trail ride, then a cub is not for you.

 

Yes, it will require a new crank.

 

You'll also want to get an override transmission, because you'll have a hell of a time shifting with a stock tranny

 

You'll have to upgrade your clutch assembly (new basket, clutch, and more than likely a lockout, which requires a cover).

 

You'll need some bigger carbs and a pingel so you can provide enough fuel

 

 

 

Why do you feel like you need to go to a larger bore?

[mawcusb]

If you trail ride, then a cub is not for you.

 

Yes, it will require a new crank.

 

You'll also want to get an override transmission, because you'll have a hell of a time shifting with a stock tranny

 

You'll have to upgrade your clutch assembly (new basket, clutch, and more than likely a lockout, which requires a cover).

 

You'll need some bigger carbs and a pingel so you can provide enough fuel

 

 

 

Why do you feel like you need to go to a larger bore?

My advice to you is send your jugs off to get ported. RB Racing did my buddy's banshee and it was way faster than any piped production quad. Way faster. Less than half the price of a cub, stock carbs, stock crank. Good luck with your build.