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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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Piston after 60 mth.
Hi,
is it normal that piston is worn like this ? What cause such wear on the bottom part of side wall ? Piston - Wossner A, brand new cylinder, GAS GAS EC 250 2012 Last edited by skiba_14; 04-05-2019 at 06:08 AM. |
#2
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Looks perfectly normal to me. 60 months is 5 years of use. Add up the hours and see what the total running time has been. The wear pattern is similar to what I get since I lug the bike more than I rev it.
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2011 EC250E |
#3
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I agree, looks perfectly normal wear.
Replace piston kit and keep riding. |
#4
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Yep. Looks normal. You are going to see some scuffing on the piston skirt as the piston rocks in the bore of the cylinder a bit.
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#5
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What they all said.. Piston can rock a bit on the pin given tolerances.. Some polishing is to be seen. Wear looks minimal..
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#6
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Here's one of my 250 slugs that I ran well past it's good point.. 110hrs (70hrs is about right for me and my riding).
Top ring: 0.88mm Bottom: 0.63mm Intake Side Exhaust Side A bit of excess blow by on one side. Lots of blow by.. rings end gaps flogged.. cylinder still in spec. Lesson learnt! 110hrs too much for me. |
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