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525 efi performance?

Old 09-30-2013, 03:24 AM
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thanx Glassdave, I will have smaller props installed over the weekend and c how it runs!
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Old 09-30-2013, 03:26 AM
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Currently motos have 220hrs.

What should be done do repower the motors? rebuild?

thnxx
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Old 09-30-2013, 03:27 AM
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Thanx Griff, I will be changing the props over the weekend and c how it runs then.
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Old 09-30-2013, 06:51 PM
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Originally Posted by Abdulaziz
Currently motos have 220hrs.

What should be done do repower the motors? rebuild?

thnxx
Just the top ends. They seem to need refreshening around 220-250 hours.
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Old 10-01-2013, 12:25 AM
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top ends?
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Old 10-01-2013, 12:29 PM
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Originally Posted by Abdulaziz
top ends?
Valve jobs. valve springs, head gaskets, etc. are a good idea to have done around 300hrs on 525EFI's

Also, you should pressure test the headers. If/when they leak, they can cause a major engine failure.

Last edited by Griff; 10-01-2013 at 12:32 PM.
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