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"top end rebuild kit"

Posted: Thu Nov 17, 2011 7:33 am
by terryc8171
Lost all my compression on my Saturday ride. Looking to buy kit from VTCycles (http://www.vtcycles.com/vtc_plugins/e10 ... ct=1&cat=7). I'll grab another jet for the carb as well.

Looking for other opinions, advice on anything you would do to your scoot if you were making this repair.

'87 se50

Re: "top end rebuild kit"

Posted: Thu Nov 17, 2011 8:35 am
by SuprasNsprees
terryc8171 wrote:Lost all my compression on my Saturday ride. Looking to buy kit from VTCycles (http://www.vtcycles.com/vtc_plugins/e10... ct=1&cat=7). I'll grab another jet for the carb as well.

Looking for other opinions, advice on anything you would do to your scoot if you were making this repair.

'87 se50
did you melt the piston , or score the cyl walls with dirt/debris ?

while the link you posted doesn't work, I'd be looking at big bore kits if it were mine . these are always good times to do mods

Re: "top end rebuild kit"

Posted: Thu Nov 17, 2011 8:55 am
by swimmingfree

Re: "top end rebuild kit"

Posted: Thu Nov 17, 2011 12:06 pm
by terryc8171
Thanks swimmingfree.

I haven't looked at the piston yet. Guess maybe I'd better look before I buy!

Re: "top end rebuild kit"

Posted: Thu Nov 17, 2011 12:21 pm
by eliteguy50
If you have broken parts, be sure to clean out the bottom end before rebuilding the top end.

Re: "top end rebuild kit"

Posted: Thu Nov 17, 2011 1:25 pm
by swimmingfree
when you brake it down not let the piston bang around or turn the crank it may put a small crack in the piston that will show up when its running ..like what happen to me

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By freeswimming at 2011-08-23

then you have to crack the case to get all the piston out of the block that's the only way to make sure you get all the piston out of there .. the allumun of the piston will get in the Bering and mess them up casing you a bigger problem .. there been a lot of people saying just turn it up side down and spry it out with carb cleaner that's not a good way to do thing ..
swimmingfree

Re: "top end rebuild kit"

Posted: Thu Nov 17, 2011 1:33 pm
by niftyman
Always split the cases

Re: "top end rebuild kit"

Posted: Sun Nov 20, 2011 5:44 pm
by terryc8171
Obviously need a new piston. Looks like part of the clip is still there. The cylinder needs work. Any suggestions appreciated.

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Re: "top end rebuild kit"

Posted: Sun Nov 20, 2011 6:09 pm
by bakaracer
that looks like an improper c clip install that caused that.

Re: "top end rebuild kit"

Posted: Sun Nov 20, 2011 6:48 pm
by swimmingfree
by the photo you have on here it looks like time for a bbk or see if someone has a use se50 top end for sale ..
bakaracer
i think your right the c clip came out..

Re: "top end rebuild kit"

Posted: Sun Nov 20, 2011 8:41 pm
by terryc8171
c clip was my guess as well. based on the cause, should the connecting rod be ok?

Re: "top end rebuild kit"

Posted: Sun Nov 20, 2011 10:25 pm
by bakaracer
double check the clearances on it. also clean out the engine case. by the looks of that piston, my guess is that there is metal pieces in there

Re: "top end rebuild kit"

Posted: Mon Nov 21, 2011 5:44 am
by terryc8171
I'll have to read how to check the clearances and splitting the case. I don't have any specialty tools if that's required.

Re: "top end rebuild kit"

Posted: Tue Nov 22, 2011 6:11 am
by terryc8171
Found a used, complete top end I can see next week. Thanks for the help. If I need help with crankcase I'll search old posts.