Bike was unusually fast

Jamal#440
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MI US
Jamal#440
I raced back in the 80s. One of my last races was on my 89 Rm125. This day was 125 A and B mixed (one gate drop) I started in 5th, my bike felt much faster and I passed two A riders on the first lap. On the second lap it quit running on a big down-hill and didnt start until near the end of the race. Was this a jetting issue or ? I dont know engines (my dad did all my wrenchng) Does anyone have an idea on it?
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Paw Paw 271
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Paw Paw 271 2/11/2018 5:23pm
2/11/2018 5:23pm
The engine was running very lean. Air leak or fuel starvation issue.

Paw Paw
Meister
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Canton, OH US
Meister 2/11/2018 7:42pm
2/11/2018 7:42pm
Usually when I had that feeling, it was about to explode. Lol
Jamal#440
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MI US
Jamal#440 2/11/2018 7:47pm
2/11/2018 7:47pm
Paw Paw 271 wrote:
The engine was running very lean. Air leak or fuel starvation issue.

Paw Paw
Thank you for the answer. btw theres a city here in Mich called Paw Paw, bought my 85 KX80 at a dealer there.
mwssquad827
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Twin Falls, ID US
mwssquad827 2/11/2018 8:16pm
2/11/2018 8:16pm
Meister wrote:
Usually when I had that feeling, it was about to explode. Lol
Yup when ever my old 125s we’re running super fast.. it was gonna all be over soonLaughing

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4csHATER
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The sticks, KY US
4csHATER 2/13/2018 10:09am
2/13/2018 10:09am
this happened to a rm85 of mine in 2006 bike felt insane for like 3hrs then kaboom went the engine. destroyed everything.

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