Carburetor/Carburetor 5. Remove two screws and throttle valve. M36957 -UN-25JAN90 M98,2050K,13 -19-21OCT85 6. Remove throttle valve shaft. 7. Remove foam seal (A) from shaft. Inspect throttle shaft. Replace shaft if it shows excessive wear or is bent. M36958 -UN-25JAN90 M98,2050K,14 -19-21OCT85 CTM2 (19APR90) 50-5 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495 8. Remove four screws to remove air intake. -UN-25JAN90 M36959 M98,2050K,15 -19-21OCT85 50 5