Yeah thats my problem. The jets that came with my bike have weird unrecognizable jets so it makes it hard to pick out which ones I need. The #38 slow jet in the carbs looks like N424-22 and N424-24, but it is only 21 mm long, and is from an aftermarket Keyster CB450 kit. The #150 main jet that was originally in the carbs looks like 99101-806 or 99101-124, but grounded down shorter with a file or something to fit in the carbs. The #130 I have now is also from a Keyster CB450 kit, which I am still having trouble ID'ing on the charts.