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Author Topic: 83 yz 100  (Read 2708 times)

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Offline oldyz100

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83 yz 100
« on: August 08, 2012, 12:07:00 AM »
i picked up a 83 yz 100 was told it just had a top end rebuild.  I was riding around a sand pit and it started to slowly lose power eventually just bogged out. im thinking maybe need a new piston or rod etc. any ideas would be greatly appreiciated. 
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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Offline SachsGS

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83 yz 100
« Reply #1 on: August 08, 2012, 05:25:10 AM »
Check the compression.
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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Offline riffraff

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83 yz 100
« Reply #2 on: August 08, 2012, 05:53:51 AM »
Quote from: SachsGS on August 08, 2012, 12:25:10 PM
Check the compression.

and then if the compressions low, off with the top end   :(   ><img src=" title="Angry" class="smiley">
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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aaahhhhh yes, I remember the good old days

Offline oldyz100

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83 yz 100
« Reply #3 on: August 08, 2012, 06:27:54 AM »
The pressure is Basically gone. I pulled the top end off one of the gaskets were pretty worn out , a dowel was missing, the piston looks scored and the engine  was making a rattling sound before it shut off. 
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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Offline riffraff

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83 yz 100
« Reply #4 on: August 08, 2012, 06:45:35 AM »
So the top end wasn't just done? It's amazing how many ads claim a fresh top end
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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aaahhhhh yes, I remember the good old days

Offline oldyz100

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83 yz 100
« Reply #5 on: August 08, 2012, 07:30:49 AM »
Exactly got to love people .
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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Offline oldyz100

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83 yz 100
« Reply #6 on: August 09, 2012, 05:45:36 AM »
« Last Edit: December 31, 1969, 04:00:00 PM by ' »
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