Need advice for bottom end rebuild

[chevyboy4]

hey guys. i just bought a 2004 blaster to fix up for my senior project for highschool and the bottom end needs a rebuild. I've seen some videos on youtube about how i should go about doing it but is there a certain way to do it and how long and difficult will it be? any advice would be appriciated.
thanks

 

[yb200]

best thing you can prolly do is invest in a clymer manual itll tell you everything and how to do it

 

[Eye R Newb]

+1 to the clymer manual. i got mine on amazon for 16 bucks. see em on ebay for 20-24 bucks shipped. also check out those videos from i believe rocky mtn atv? they are very helpful! it isn't that nuch of a pita if u have the proper tools :] i just have trouble with loosening bolts lol

 

[370]

screw the clymer.. get a factory yamaha manual.... clymers do work well as coaters or kindling though..


realisistically if the engine is out you can tear it down and have it all bakc together in a couple hours tops... thta is if youi have the parts you need already... do yourself a favor replace the crank bearing and all the seals. both parts are often overlooked but very vital to and enigne running properly for a long period of time..

 

[yes se-r]

itd be a good idea to throw a stroker in there and port your head. i have a brand new stroker for sale if your interested lol

 

[370]

i agree if your gonan do the lower end anyway why not do a stroker.. hell you can pick the cranks up for $130-$200.. your already there might as well do it... then you just gotta pay for the portwork and the head work... looking at a difference of about $500 once you figure the crank, portwork, and head... if you gotta buy a crank anyway your looking at a differnece of $300.. and really EVERY blaster needs some head rechmabering and portwork done to run real good anyway...

 

[Kennedy_Power]

3+mm cranks are easy
4+mm cranks are a biotch to get the ports right
I spent a couple of weeks working the the 4 mil set up
It's killer with the BB cylinders, but much work

 

[370]

i was refering to teh 3mm setup.. i should have said that..