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Need to access idle mixture screw

 
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catman
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Joined: 30 Oct 2019
Posts: 7
Location: 28025
roughhouse

PostPosted: Sun Nov 10, 2019 3:21 am    Post subject: Need to access idle mixture screw Reply with quote

I am going to install a Malossi Wild Lion exhaust. I will change the main jet and would like to adjust the idle mixture. The idle mixture screw seems to have a dark epoxy covering it. Just wondering what the best way to get the epoxy off. I have a replacement idle mixture screw that is slotted. This is a 2020 Genuine Roughhouse.
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catman
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Joined: 30 Oct 2019
Posts: 7
Location: 28025
roughhouse

PostPosted: Mon Nov 11, 2019 2:41 am    Post subject: Reply with quote

I removed the carb today. The epoxy covering the idle mixture screw was very thin and chipped off easily with the corner of a small chisel. The brass idle mixture screw was not slotted as I had read on some other posts. I drilled a small hole in the center of the screw and removed it with a screw extractor. Installed the new idle mixture screw that is slotted. Reinstalled carb and adjusted. Idles much smoother and initial throttle response is great.
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wheelbender6
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Joined: 07 Jul 2013
Posts: 647
Location: Houston area
Genuine Buddy 125

PostPosted: Tue Nov 12, 2019 5:31 am    Post subject: Reply with quote

Do you think the original idle mixture plug could be slotted by using a dremel?
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Alzero
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Joined: 10 Apr 2019
Posts: 15
Location: East coast waters
Lance Cali Classic 125

PostPosted: Tue Nov 12, 2019 3:41 pm    Post subject: Reply with quote

A Dremel could be hard to control. I’d try a thin hacksaw blade with a high tooth count to cut a slot in the top. A replacement screw would be the best answer.
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catman
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Joined: 30 Oct 2019
Posts: 7
Location: 28025
roughhouse

PostPosted: Tue Nov 12, 2019 6:17 pm    Post subject: Reply with quote

The replacement idle mixture screw was only a few dollars and it came with a new spring, the small washer and o-ring. You could easily slot the old one though.
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