Cub Cadet MTD P90 Series - Manual (Page 108)

P90 Series Vertical Shaft Engines
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Compression ring end gap 0.008” 0.20 0.016” 0.40 0.039” 1.00
Scraper (second) ring end gap 0.008” 0.20 0.016” 0.40 0.039” 1.00
Compression ring to land clearance 0.001” 0.02 0.002” 0.06 0.008” 0.20
Scraper (second) ring to land clearance 0.001” 0.02 0.002” 0.06 0.008” 0.20
Intake valve lash 0.004” 0.10 0.006” 0.15
Exhaust valve lash 0.006” 0.15 0.008” 0.20
spark plug gap 0.024” 0.60 0.031” 0.80
Module air gap 0.016” 0.40 0.024” 0.60
Specification Minimum Maximum Service Limit