YZ 144cc 02' Failure

pcpa91
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pcpa91

Hello Friends! From Portugal..

I have a 2002 YZ 125 with Athena kit 144cc, i'm very happy with her but i have a problem..

When the engine as more hot (running for a while) the engine lost lowers, loses power..

I do a video on youtube to show.

Can be clutch problem? Carb problem?

Thanks and sorry for my english Wink [/url]
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Tryhard
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Tryhard 6/13/2017 4:52am
6/13/2017 4:52am
pcpa91 wrote:
This is the video.. https://www.youtube.com/watch?v=b-HyCH5HqHs
This is the video..

https://www.youtube.com/watch?v=b-HyCH5HqHs
Perform a compression test on the cylinder while warm and while cold with the throttle wide open ... compare your numbers ... I would start withing removing the cylinder and checking the plating as well as your rings ...
pcpa91
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pcpa91 6/13/2017 6:11am
6/13/2017 6:11am
But its normal happens only in lowers?
In highers the bike runs very well..

And happens only when the engine is running for a while..
Hondas4Life3
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Hondas4Life3 6/13/2017 10:29am
6/13/2017 10:29am Edited Date/Time 6/13/2017 10:31am
Sounds like a clutch problem. The heat should not affect the power like you say it is. Sounds like clutch gets hot and starts to slip. I would inspect the clutch completely and if that's not the answer leak down test the engine. Could be ECU related but I doubt it

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pcpa91
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pcpa91 6/13/2017 11:40am
6/13/2017 11:40am
in my point of view yes, probably is clutch problem..
the clutch kit instaled it's a Racepro..
probably a good clutch kit solve the problem..
I hope!!

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