Small Engines (Lawn Mowers, etc.)/tusqavania riding lawn miwer


QUESTION: We just installed a new drive belt ordered through Lowes.  Now its loose and will not engage and move the lawn mower.  What could be the problem.  Thankyou

ANSWER: Did you measure the old belt against the new belt to make sure the belt is the correct length?

Did you make sure the belt routing is correct?  

Is the mower an automatic mower or do you have a 5 speed mower?


---------- FOLLOW-UP ----------

QUESTION: That did not answer the question.  Yes all of that was done and checked...   What engages the belt.  Its not engaging causing the belt made for the lawn mower seem to big.  Unless they numbered the belt wrong its the right belt.  But it will not propel the lawn mower.  Very odd.  Was just working.  Were thinking a piece by the transmission must be missing somehow.  Not allowing the motor to engage.  Thankyou.

If you have a hydrostatic drive an idler pulley spring keeps the belt tight.  The spring is connected to an idler pulley arm and pulls on the arm to keep the belt at the proper tension.

If you have a 5 speed model it will have the same setup, idler pulley, arm and spring.  Only difference is the belt tension is removed when you foot pushes the clutch pedal.

If the belt is the correct part number but seems to big then either the routing is wrong or the spring that pulls on the idler arm is dis-connected or broke.

I need the mower model number to look up your specific drive system.


Small Engines (Lawn Mowers, etc.)

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Eric A. Jones


Lawnmower Repair . Certified Master Service Technician from B&S. Have 23 years experience on B&S, Lawn Chief, Weed Eater, Echo, Peerless, Wheel Horse, Snapper, Atlas, MTD, McCulloch, Homelite and many other numerous brands. Specialize in electrical repair.


Born and raised in the midwest. Started tinkering with engines when I was about 14 on my Suzuki RM-80. I began lawn mower repair at a small hardware store. I knew absolutely nothing. I read lots of repair manuals and met an older fellow who taught me many lessons. I continued working on small engines through high school and paid my way through college working on mowers at the same hardware store. Decided to get away from the midwest and mower repair so I joined the Air Force. I repaired air traffic control electronic equipment and ended up in Hawaii where I got a part time job at Small Engine Clinic. I gained a lot of experience from the Small Engine Clinic and had a blast repairing small engines. I then took the Briggs and Stratton Master Service Technician test and earned my MST. I then traveled to Wisconsin where I attended the factory update training seminar and received formal training. Continued working on mowers part time as I completed 20 years of military. Retired from the military on a Friday and continued in the lawn and garden industry the next Monday.

MAS Aerospace Operations BA Mathematics AAS Electronic Communications AAS Electronic Technology

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