440 big bore finished

[06_hondatrx_400]

Finish up my 440 big bore yesterday. And got it all put back together today. Im very impressed with it so far, i didnt get to ride it much being its the middle of winter so now it sit in the garage till next summer.

[06_hondatrx_400]

another pic

[06_hondatrx_400]

and one more

[zfrank07]

who done the machine work? yourself or you send it off...im needing to rebuild mine also

[06_hondatrx_400]

I did all the work myself. If you buy a big bore kit with the new jug, it just bolts right up. But if u buy the kit with just a new sleeve you have to have it sent into a machine shop to press the new sleeve in. But in my point of view if your going to put in a big bore kit you would be better off buying a kit with the new jug because by the time you pay to have it sent in and redone, it will cost about the same amount to just buy the kit with the new jug.

[atv fan 28]

did you take the motor out just to put the new jug on?

[06_hondatrx_400]

I took the whole motor out because i was thinking i had to replace the crank. Before i put the big bore kit in the motor began making a knocking noise. It ended up just being the cam chain tensioner and i replace the timing chain. But to put a new jug on you do not have to take the whole motor out it is nessary. I just took the whole motor out to figure out if i needed to replace the crank or not.

[da 400ex]

DID U HAVE TO CHANGE UR CRANK ARE ROD WITH THIS KIT?

[atv fan 28]

nope. this is a bolt on kit.

[da 400ex]

i no its a bolt on kit but i wanted to no with so much compression with the stock crank hold up.. ive heard they tend to break!