c. A slight “thunk” evident at low speed opera- tion. This noise must be distinguished from normal vehicle operation. Diagnosis: Possible broken gear teeth. _ Stop riding immediately if broken gear teeth are suspected. This condition could result in the shaft drive assembly locking up, causing loss of control of the vehicle and possible injury to the rider. WARNING LLL L L LLL L L LLL L L LLL L L LLL L L LLL L LLL 2. Check: drained oil Drained oil shows large amounts of metal particles Check the bearing for seizure. NOTE: _ A small amount of metal particles in the oil is normal. 3. Check: oil leakage MMM M M MMM M M MMM M M MMM M M MMM M M MMM M MMM a.
Clean the entire vehicle thoroughly, then dry it. b. Apply a leak-localizing compound or dry powder spray to the shaft drive. c. Road test the vehicle for the distance nec- essary to locate the leak. Leakage Check the component housing, gasket, and/or seal for damage. Damage Replace the component. NOTE: _ An apparent oil leak on a new or nearly new vehicle may be the result of a rust preventa- tive coating or excessive seal lubrication. Always clean the vehicle and recheck the suspected location of an apparent leakage. LLL L L LLL L L LLL L L LLL L L LLL L L LLL L LLL 7 - 2 TROUBLESHOOTING DRIV DRIV