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spankyjr1, Journeyman
Category: Industrial Equipment
Satisfied Customers: 2621
Experience:  I worked on all types of equipment semis,forklifts,farm,ect.
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Have a 1994 JLG manlift model H crankcase breather tube to

Customer Question

have a 1994 JLG manlift model H
crankcase breather tube to carb inlet I disconnected because oil bypassing foiled plugs and made for hard starting. So now starts good but get lot smoke when running in gear but not much when not driving. The tube I just ran out bottom to the air. What can I do to fix somking. Overhall engine???
Submitted: 1 year ago.
Category: Industrial Equipment
Expert:  spankyjr1 replied 1 year ago.

Check you PCV valve ,if it is stuck (no rattle when shaken) then its not working and will cause your issue.

Other possible causes are worn cylinders,

Also make sure air filter is good and exhaust not plugged