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85 GSL Engine Shimmie

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Old Mar 18, 2023 | 06:06 PM
  #1  
Phineas's Avatar
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85 GSL Engine Shimmie

Trying to prep my 85 GSL for California smog.

Sent the OEM Nikki carb done to Florida for a bath and rebuild.

Reinstalled carb and got her starting and idling at about 800 rpm after cold start.

During warm-up, and above 2000 rpm, she shimmies like a nervous hula dancer.

Any ideas about what could be causing this, or where I should start?

Link to video showing shimmie -
https://youtube.com/shorts/Y8e3sb_W_HY?feature=share
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Old Mar 21, 2023 | 09:41 AM
  #2  
gracer7-rx7's Avatar
needs more track time
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That's a helluva shimmy

How are your engine mounts?

Does the engine run smoothly at those higher rpms? I.e. is it just that it's shaking around (possibly because engine mounts are worn) or it running rough?

Last edited by gracer7-rx7; Mar 21, 2023 at 09:43 AM.
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