Rebuild info

[maxxemracing]

ok i changed my mind i was wanting to make a 440ex but money situations will not allow and i have 300 bucks so what all do i need for a top end rebuild and how much will it cost me and my dad can build it.


thanks for your help

around 50 to 60 bucks if all you want are rings and new gaskets a piston will be another 100 or so but you probably dont need it

[maxxemracing]

well im gunna hone it NOT bore it and its been about a year and a half since its been rebuilt and its smokin pretty bad .Does anyone think i need new springs or valve seals the springs in the motor havent been changed ever.

[prepracing]

I would definately change the valve seals, they're pretty cheap

[maxxemracing]

Yeah i have 450 dollars and i am getting a whole set of tires from rocky mountain atv either klaws or razrs not sure yet. anyway wont i need all new top end gaskets also i know im geting a new piston and rings, and valve seals. what about valve springs they have never been changed and im sure they've become alot weaker than new?:ermm:

[Dave400ex]

New stock valve springs from Service Honda are not all expensive, so you could get new ones just to be safe. I got new springs and rockers when I rebuilt mine over a year ago...

[2004exrider]

make sure to mic the cylinder just incase its pretty ovaled out.

[maxxemracing]

hey 2004exrider how do you like your curtis sparks timing key there only twenty dollars can you tell a big difference

[2004exrider]

sadly havent got it in yet. but its supposed to be pretty good. Not reccomended for bored out engines (well built ones) because they say it wont do a lot and heat issues. will post back when i install it!

[maxxemracing]

Yeah i dont think it will hurt my wittle 416 and i have an oversized oil tank and oil cooler on the way from my dads work someone made

[maxxemracing]

ohh and one more thing i know its off topic sorry .last night i ajusted my valves all of them had about .003 too much play but one my intake valve on the oil filter side of the motor had no play i just think the spring is starting to get weak but what do you guys think

[maxxemracing]

/\ /\ /\ /\ bump

[Speedy81304]

should have the cylinder bore checked for spec. if its out of round you will need to bore it. if its in spec then just hone. i always bore out to the next size then you know you have a good cylinder thats round.

[maxxemracing]

bump^^^^^^

[Dave400ex]

To get all new valve springs will be $34.16 from Service Honda, plus shipping. I say if you have it apart, just replace them...