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I purchased a used Hydro-Auto 21HP 46" Deck Murray Ultra…

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Second opinion] I purchased...

Second opinion] I purchased a used Hydro-Auto 21HP 46" Deck Murray Ultra Rider Engine Model TVT691 and there seem to be no throttle adjustments and find myself playing with the choke to keep it running. Any sugggestions?

Mechanic's Assistant: Can you guesstimate how old the engine is? And has it done anything like this in the past?

DOM 0088

Mechanic's Assistant: Do you plan on doing the work yourself?

Yes

Submitted: 10 months ago.Category: Small Engine
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Answered in 50 minutes by:
9/30/2017
Technician: Curtis B., Technician replied 10 months ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,884
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

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Technician: Curtis B., Technician replied 10 months ago

Engine make and model?

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Technician: Curtis B., Technician replied 10 months ago

I see question is still open.???

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Customer reply replied 10 months ago
Tecumseh engine, Model TVT 691. McDonald's advise to remove/disconnect the plug wire while the engine is running was spot on. Upon removing the wire on the right cylinder the engine continued to operate but when the left cylinder wire was removed the engine shut down. I ordered another right side cylinder head. I have not removed or dismantled the right cylinder head yet. Do have any special advice to offer before I venture into the task at hand? I should have given Tec Donald the highest rating and I would like to offer my apology. I am awaiting my parts and will be out of town for a bit.
Technician: Curtis B., Technician replied 10 months ago

Was the cylinder getting spark? If it had no spark on the right side, yo may only need a new coil.

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