What series pilot jet for 78 XS400?

sandmanred

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I see the manual has the stock pilots at 42.5, which mine have printed on them. I need to go up a size or two so I got some VM22 47.5 pilots from Jets R Us and I'm pretty sure I ordered the wrong style. They fit but I went way rich and I can see the orifice is much larger than stock, more than a step or two. What is the correct pilot jet series for this bike?
 
xschris you are the best!

Thanks for the link. The jets I found in the carbs that I assume are stock (bike appeared to be mostly stock as purchased) were 42.5 but they have no holes in the body, the link you sent says there are 6. How big a deal are the holes?

 
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