4 stroke rebuild 101

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swedishfishmx
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4 stroke rebuild 101

#1 Post by swedishfishmx » Wed Sep 25, 2013 11:43 pm

I'm back...kind of. It all goes back together tomorrow.

All new piston/rings/valves/guides/etc.
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Brad Stretz | 243
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Btrigg88
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Re: Melvern Talk

#2 Post by Btrigg88 » Thu Sep 26, 2013 9:02 am

Wow, did you salvage that engine from the ocean?!?
swedishfishmx wrote:I'm back...kind of. It all goes back together tomorrow.

All new piston/rings/valves/guides/etc.
Brian Trigg
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Speedysdad
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Re: Melvern Talk

#3 Post by Speedysdad » Thu Sep 26, 2013 11:07 am

[quote="Btrigg979"]Wow, did you salvage that engine from the ocean?!?

That was exactly what I was thinking.
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swedishfishmx
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Re: 4 stroke rebuild 101

#4 Post by swedishfishmx » Thu Sep 26, 2013 12:35 pm

LOL, who made this a thread?

Anywho, anyone who thinks a 4-stroke is too much to handle once you open the valve cover is crazy. Apart from the multiple valves, cams (unless it's a unicam design), valve springs, cam chain, buckets, valve shims, etc etc it's basically the same thing as a 2-stroke.

:cry:
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WireFryer
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Re: 4 stroke rebuild 101

#5 Post by WireFryer » Thu Sep 26, 2013 3:28 pm

swedishfishmx wrote:LOL, who made this a thread?

Anywho, anyone who thinks a 4-stroke is too much to handle once you open the valve cover is crazy. Apart from the multiple valves, cams (unless it's a unicam design), valve springs, cam chain, buckets, valve shims, etc etc it's basically the same thing as a 2-stroke.

:cry:
Yeah, right, sure..., what he said :roll: just like a 2 stroke rebuild, but involving an additional 20 hours along with the extra grand and change to get the same end results.

Ain't dirt bikes fun?!

Tim
#785
The saddest sound in all MotorSports is the noise the drivetrain makes as you slowly coast to a complete stop.
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Jason g
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Re: 4 stroke rebuild 101

#6 Post by Jason g » Thu Sep 26, 2013 7:12 pm

Eehhh just slap a new set of rings on it. Get back on the track. asap
I prayed for an old, wise angel who fly's faster than I ride. 2005 yz 250// 2000 cr 500// 2007 rmz 450// 2008 ktm 300// 2013 ktm 300 xcw.
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Re: 4 stroke rebuild 101

#7 Post by swedishfishmx » Fri Sep 27, 2013 12:22 am

WireFryer wrote:
swedishfishmx wrote:LOL, who made this a thread?

Anywho, anyone who thinks a 4-stroke is too much to handle once you open the valve cover is crazy. Apart from the multiple valves, cams (unless it's a unicam design), valve springs, cam chain, buckets, valve shims, etc etc it's basically the same thing as a 2-stroke.

:cry:
Yeah, right, sure..., what he said :roll: just like a 2 stroke rebuild, but involving an additional 20 hours along with the extra grand and change to get the same end results.

Ain't dirt bikes fun?!

Tim
#785
Actually you'd be surprised. All the parts I needed where under $500. The labor is what is the most expensive part, but if you do it yourself you don't have to pay the $80 an hour.
Brad Stretz | 243
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WireFryer
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Re: 4 stroke rebuild 101

#8 Post by WireFryer » Fri Sep 27, 2013 4:01 pm

My assumption was based on the fact that the bottom half of the engine looked as bad as the top :wink: .

Was the bike at the bottom of a river for awhile, or did the head gasket leak while it sat all winter?

Come clean Brad... alot of us wanna hear how that top end, got that nasty!

Tim
#785
The saddest sound in all MotorSports is the noise the drivetrain makes as you slowly coast to a complete stop.
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shredder
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Re: 4 stroke rebuild 101

#9 Post by shredder » Fri Sep 27, 2013 10:07 pm

That's easy! He took his bike to the fishing pond instead of the boat...DOOH! :shock:
Dennis Tschirhart - #1000 something


If your going to scuff it, scratch it, crack it or break it, always do the best job you can!
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Honkytonk Superman
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Re: 4 stroke rebuild 101

#10 Post by Honkytonk Superman » Sat Sep 28, 2013 10:56 pm

Some duct tape and barb wire will fix that right up.
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