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Round to Flat slide conversion

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Post Tue Sep 19, 2017 5:09 pm

Posts: 684
I know enough about jetting to get me into trouble, so here's my situation. 79 YZ250 needs a carb which was a vm38 originally. Would the jetting be similar for the flat slide same size? What about performance issues? KISS says buy a direct replacement, but the prices are about the same.

Post Wed Sep 20, 2017 9:13 am

Posts: 1244
I would think if you called Sudco or Carb Parts Warehouse they would be able to match the jetting across both carbs and I would start there as a baseline.
Tom A.
SRCR President
Vintage Series Racer
1977 MX3, 1977 RM 175, 1980 CR250R, 1981 PE250, 1988 Cagiva WMX, 90 CRM250, 98 YZ250

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