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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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Gear shifting issue (false neutral) after overheat
Hey guys,
I just wanted to share my recent issue and how it was solved. My bike is 2018 EC300. 80h+. After a tough hot weather ride, mostly uphill with a lot of clutching I started to experience frequent false neutrals. Moreover, in 50% of cases, I was not able to switch the second gear on a first attempt. The issue was in damaged plastic scorpion centerer (ME250236041): I have recovered sizes, they are not 100% precise as it was not possible to measure everything from damaged detail, however, it worked brilliant. Sizes: After that, the same part was made from brass to prevent the issue from happening again. It really works more precisely than it was on a new bike IMO Result: https://youtu.be/0aTJJiqFMsE Hope it will help someone Cheers Last edited by olegzh; 06-30-2020 at 01:32 PM. |
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Thanks for sharing.
Someone mentioned that GasGas has a metal version available. |
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Quote:
I have just seen that the part number for the 2019 model is ME250236041 while the one oleg mentioned was ME256236041. maybe they have already changed it for a metal one... Last edited by Doc Brown; 06-30-2020 at 01:22 PM. |
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So in general not harder than to replace a clutch. There was also a vid on youtube how to put scorpion spring back, it is not that straightforward, but still easy when you saw/get it https://www.youtube.com/watch?v=BEgO4L4owd8 |
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It is ME250236041 which is same starting from 2000 year. I have searched all previous and next years to check is there any chance to find the metal one. |
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A member on the GasGas Fan Club page on FaceBook posted this part #.
ME250236041 |
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The four strokes had a metal one, I used to just spin one up on the lathe. Easy job and it will not get damage if you smack the gear lever on a rock.
__________________
Back on a gassy! 2018 EC300! 🤘 Txt 280 07 to make me feel like a gumby again |
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I talked to a dealer in Germany yesterday and he says he has one left which is made from metal. He will ship it with my next order. Thought it can't be a bad idea to have it in my spare parts box :-) The dealer said that generally he has had no issues with the plastic bushings so far and he never saw one damaged like yours... Last edited by Doc Brown; 07-04-2020 at 11:37 AM. |
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It was really a long uphill ride with like +30 degrees celsius with almost no place for rest ~1h+
At the top, I noticed that few drops of sweat on my gearbox evaporated immediately with corresponding sound. So I believe it was really high temperature. |
Tags |
ec250, ec300, false neutral, gear |
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