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Husqvarna "RZ4621 46"" Briggs And Stratton 540cc 966659101 Zero Turn Riding lawn Mower 2012" Questions & Answers
Zero turn rz4623 won't move
wont drive ???
check the belt, check the fluid, check the dump valves
wont push, check the brakes and the dump valves
9/10/2018 4:16:25 PM •
Husqvarna...
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Answered
on Sep 10, 2018
Where to get rings for Husqvarna 145bt?
The problem is that the engine is a funny size at 40cc. If it was 50cc, you could get away with motorcycle rings. The normal way to size rings is by measuring the bore with an inside micrometer across left to right and then again front to back. The front to back measurement is often a little more worn. Then you order rings by diameter and thickness, Any local engineering company can do this and supply you with generic rings.
There is a different model here with rings at $25 but Jack's Small Engines is $57. My advice is get the OEM ones. You will also need to hone the bore lightly to dull the polish. Oil the new rings with 2 stroke oil when fitting them.
https://www.google.com/search?q=husqvarna+145bt+piston+rings+size
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