04-15-2024, 12:52 PM | #1 |
Join Date: Apr 2024
Posts: 3
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2021 EGL A17 NC250/300 Coolant in oil.
I recently purchased a very clean low hour EGL A17 300 with the Zongshen NC engine. While doing my typical new to me bike maintenance I found coolant in the oil. The previous owner told me that dealer had changed the oil a couple of months ago and bike has less than an hour ride time since. I have searched for information and cannot find anyone else mentioning this issue. I am going forward with water pump shaft and seal replacement and hoping that this resolves the issue but was also looking for guidance on other possibilities while I am tearing into it. Bike did not white smoke or run poorly. Thanks
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2012 Yamaha WR450f 2021 EGL A17 300 |
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04-15-2024, 01:25 PM | #3 |
Join Date: Apr 2024
Posts: 3
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I have not, but I certainly can, however the bike starts and runs perfectly, and I see no evidence of it burning coolant.
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2012 Yamaha WR450f 2021 EGL A17 300 |
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04-18-2024, 09:30 AM | #5 |
Join Date: Apr 2024
Posts: 3
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Update: Every NC250 parts breakdown I have found shows a simple single lip oil seal and a similar water seal. Mine has a mechanical seal like the NC450. The seal is in several pieces. I am not sure where to go for parts. Is this an NC450 seal? Is it an updated NC250/300 design? Perhaps it was a factory screw up and the NC450 seal was used by mistake? I am having a hard time finding a reliable source.
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2012 Yamaha WR450f 2021 EGL A17 300 |
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04-18-2024, 08:08 PM | #6 |
Join Date: Apr 2017
Location: Omaha, NE
Posts: 8,028
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Are you 100% sure it's coolant and not just condensation?
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04-19-2024, 11:49 AM | #7 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,092
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Quote:
It's almost sounding like some ham-fisted mutant young kid did the service at the dealership and maybe didn't service it correctly??????
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