rebuildin a 4 stroke??

[pollock]

hi all, my dads 450 and the quad will need a rebuild soon as well, i was just wonderin how hard it is to rebuild them and can it be done at home. what tools do u need for the job. thanks heaps

[DoonsFMX.]

do you have any sort of mechanical experience with rebuilding motors? if not take it to the shop...if so tell me what you know about it and ill try help you out..

[Cannotjump]

would of thought u'd have an idea already??

http://www.fmxaustralia.com/forum/showthread.php?t=39992

[meesh]

These guys do some pretty helpful video's. I did my first 2 stroke top end the other day using the info from one of the videos. Here's the four stroke rebuild...

YouTube- Motorcycle Top End Rebuild for Four-Stroke (Part 1 of 2)

YouTube- Motorcycle Top End Rebuild for Four-Stroke (Part 2 of 2)

[Honda_150_Rydr]

Yeh i saw the 2 stroke version of this by rocky mountain atv aswell and
its pre good like when i rebuild my bike, im goin to do it at home and refer
as much as i can do the vid.

[madmanjim]

These guys do some pretty helpful video's. I did my first 2 stroke top end the other day using the info from one of the videos. Here's the four stroke rebuild...

Ditto on that. Alot of reading and watching the 2 stroke rebuild videos from RockyMountain gave me the confidence to do my first bottom (and top) end rebuild. They also have some pretty nice Tusk tools which can help you out alot.

Have your bike manual close by for torque and other important specs along the way.

[Honda_150_Rydr]

Ditto on that. Alot of reading and watching the 2 stroke rebuild videos from RockyMountain gave me the confidence to do my first bottom (and top) end rebuild. They also have some pretty nice Tusk tools which can help you out alot.

Have your bike manual close by for torque and other important specs along the way.

Yehh man well im due for a rebuild (top end) probs these holidays, but in the
vid there is a lil part that i dnt understand, its about the gap or something
like says to measure the gap or something but i'll look into that a bit more.
Just hoping i can buy the rebuild kit and do it all, not hav to get some certain
size or something i duno

[Honda_150_Rydr]

More worried about the powervalve and making sure i take
apart correctly and put it bak on right

[madmanjim]

Yehh man well im due for a rebuild (top end) probs these holidays, but in the
vid there is a lil part that i dnt understand, its about the gap or something
like says to measure the gap or something but i'll look into that a bit more.
Just hoping i can buy the rebuild kit and do it all, not hav to get some certain
size or something i duno

Are you talking about the ring-end gap? You'll need a set of feeler gauges to measure something like that. Usually it should be within specs if you send your (new) piston and rings away with your cylinder to get it replated/resleeved (if needed).

[pollock]

i have got an idea. i have done a 2 stroke before but never a 4 stroke. thanks for the help though. i would get it done were i work but money is tight atm. and dad wants me to quit from there and worry about my school based apprenticeship for nxt year.

[Honda_150_Rydr]

Are you talking about the ring-end gap? You'll need a set of feeler gauges to measure something like that. Usually it should be within specs if you send your (new) piston and rings away with your cylinder to get it replated/resleeved (if needed).


Yess man thats exactly wat i was talken bout, i dnt rly get that part, i think it should
be right thoe doubt it needs re-sleeving

[morgs]

buy a decent manual or reed the one u already have they are generally very detailed and tell u exactly wat u need

[thormx683]

Yess man thats exactly wat i was talken bout, i dnt rly get that part, i think it should
be right thoe doubt it needs re-sleeving

if you dont have tools just take the barrel into ya local moto shop and get em to measure it up, then get them to order the piston and rings. its easy as to rebuild em, 4 strokes arnt that bad, just them dang valves get annoying! haha

[Honda_150_Rydr]

if you dont have tools just take the barrel into ya local moto shop and get em to measure it up, then get them to order the piston and rings. its easy as to rebuild em, 4 strokes arnt that bad, just them dang valves get annoying! haha

Dont no if it will b that easy, shops are usually pretty stingy rnt they and
wont they only order em if they get to do the rebuild em or??
But it sounds like a good idea i'll take it in and get em to measure it and
order the rings n shit but if they gonna make it a hasstle and try charge
me for stupid things then i'll tell em to get stuffed

[thormx683]

Dont no if it will b that easy, shops are usually pretty stingy rnt they and
wont they only order em if they get to do the rebuild em or??
But it sounds like a good idea i'll take it in and get em to measure it and
order the rings n shit but if they gonna make it a hasstle and try charge
me for stupid things then i'll tell em to get stuffed

the ones i go to are pretty good..
when i was doing my 4 banga i had to put a new cm chain on aswell and didnt have a flywheel puller so just went to the moto shop payed em $10 and they let us use one.. haha
but then again we know most the people who run the shops so, still worth a try tho. rebuilding them tho isnt all that hard just gotta have patience

[pollock]

i know all the blokes at the shop n dad is best mates with the owner so yea

[crim 87]

how much would it roughly cost to rebuild a ktm 07 250 sxf ??

[DoonsFMX.]

how much would it roughly cost to rebuild a ktm 07 250 sxf ??


roughly 1500/2000 give or take

[crim 87]

sweet thanks dude