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What motor?

zibzer
in The Bar

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Posted

Hell i have a 1983 Yamaha maxim 400.. how do i know if i have the XS400R or XS400 ? I want to get new NGK iridium plugs and not sure what motor to get them for, as they are different part numbers. THANKS!

1984-1977 400 XS400 Iridium BPR7EIX 4055 0.032

1983-1982 400 XS400R Iridium DR8EIX 6681 0.028

I don't trust the plugs that are in there now. The guy I bought the bike from wasn't very mechanically inclined.

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