Starter - 9 Spline - Jianshe JS250 Engine - Version 5 The larger plug is a

The larger plug is a 4-wire plug with one empty slot

Very popular in smaller ATVs

Distance hole to hole across piston area:  78mm

Other known models are Hensim HS-50

Starter - 9 Spline - Jianshe JS250 Engine - Version 5 The larger plug is aStarter for 250JS Engine Version 5 This starter is the replacement part for many 4 stroke Chinese atvs. This starter fits 250JS models. Starter description: Mounting hole spacing: 47mm (1. 85 in) 17. 6cm overall length (6. 93 in) minus mounting Spline length: 24mm (. 94 in) Spline OD: 14. 3mm (. 56 in) OD of nose: 29. 9mm (1. 18 in) next to o ring 9 tooth spline Compatible with JS 250cc 4 stroke Water cooled JS250 engine. Known to fit Loncin, Puma,