Pay in 4 interest-free payments of $7.22 Learn more
Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
NOTE: Not for 1200S models
stainless steel / steel
Small 1/2-oz (14
Inner Primary Mainshaft BearingFits most OEM and most aftermarket inner primaries
Kit includes 2 intake and 2 exhaust seals
Breaker weight spring set. Heavy Duty - 70-99 B.T.(excl. TC); 71-03 XL (NU). With mechanical advanced ignition 3545 NOTE: Not for 1200S modelsStronger than stock. For slower advance curve, used to help solve detonation issues. Also less breaker weight rattle during idling and improves idling stability. Note that stronger springs may require carburetor adjustment (richer). Note: 516300 is standard replacement, 516301 is heavy duty, 516598 is extreme duty. Mixing different spring strengths will give additional fine tuning options.
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