Rivera Primo Starter J-Shaft Assemblies User Manual

STARTER MOTOR JACKSHAFT

ASSEMBLIES

NOTE: Prior to starting any work on the motorcycle, make certain that you disconnect both

battery cables !

These starter jackshaft extension assemblies are designed for use on electric start models utilizing stock or
stock-style primary covers. They are manufactured from choice grade materials and available for 1989-1993

models which utilize a 9-tooth pinion gear mating to a 66-tooth starter ring gear, or a 10-tooth pinion gear for
use with a 102-tooth starter ring gear, as used on 1994-up models.

Each kit includes all necessary component pieces, including the starter shaft bolt, lock tab, thrust washer,
pinion gear, pinion gear spring, retaining rings, pinion coupling, extension shaft and coupler.

RIVERA PRIMO INC. 12450 WHITTIER BLVD. WHITTIER, CALIFORNIA 90602

ORDERS: 800-872-1515 TEL: [phone] FAX: [phone] www.riveraprimoinc.com

PP-SSA-93/94 Revised 6-08

Coupler

Extension Shaft

Pinion

Coupling

Pinion Gear

Spring

Pinion

Gear

Large Retaining

Ring (Not Shown)

Small Retaining

Ring (Not Shown)

Thrust
Washer

Lock
Plate

Starter Shaft

Bolt

PP-SSA-93 . . Complete Starter Extension Assembly for 1989-1993 Models with a 66-tooth Ring Gear

(Note: Supplied w/9-tooth pinion gear & coarse thread starter shaft bolt)

PP-SSA-94 . . Complete Starter Extension Assembly for 1994-Up Models with a 102-tooth Ring Gear

(Note: Supplied w/10-tooth pinion gear & fine thread starter shaft bolt)

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