How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Curtis B. Your Own Question
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28918
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
30244710
Type Your Small Engine Question Here...
Curtis B. is online now
A new question is answered every 9 seconds

Deere 345l running on right cylinder only. Have good spark

Customer Question

John deere 345l running on right cylinder only. Have good spark on left cylinder
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: Just today
JA: Do you plan on doing the work yourself?
Customer: Yes if I can
JA: Anything else we should know to help you best?
Customer: nope
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.

Good spark on the dead cylinder? Have you checked the valves? .006 inch intake and exhaust. If valves and spark is good, then check compression on both cylinders.

Customer: replied 1 year ago.
Compression is apparent with the plug out. But no gauge to check it with.
Customer: replied 1 year ago.
good spark yes
Customer: replied 1 year ago.
Seriously thats all i get for 5 bucks
Expert:  Curtis B. replied 1 year ago.

Have the valves and the compression been checked?

Expert:  Curtis B. replied 1 year ago.

You have a business card? See if you can slip a business card between the valve stem and the valve tip.

Expert:  Curtis B. replied 1 year ago.

That's about .010 inch. It has to have some clearance, but zero will not work.

Expert:  Curtis B. replied 1 year ago.

I am off to church. Try to check the valves and I will check back.