B48G — Removal and Installation

For the B48G.

Procedure

1. buretor cleaner. Do not soak non-metal floats or other non-metal parts. Follow the cleaning manufacturer’s recommendations. 2. Clean all carbon from the carburetor bore, especially where the throttle and choke plates seat. Be careful not to plug the idle or main fuel ports. 3. Dry out all passages with low pressure air (35 PSI). Avoid using wire or other objects for cleaning that may increase the size of critical passages. 4. Check the condition of adjustment needle. Replace if damaged. Replace float if loaded with fuel or damaged. 5. Check the choke and throttle shafts for excessive play in their bore. This condition may necessitate replacement of the carburetor. 6. Replace old components with new parts. Reassembly and Installation (Walbro and Nikki) 1. Install needle valve and seat, main jet and float
2. ment or misconnected fuel lines can result in leaking fuel, creafing a serious fire hazard. Use extreme care when reassembling and reinstalling fuel pump. 7-6 Redistribution or publication of this document, by any means, is strictly prohibited.

Source: manual:965-0757_Onan_B43E_spec_A-D_B43G_spec_A-D_B48G_spec_A-G_Engine_Service_manual_06-1988.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.