Service manual

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Closing adjusting screw with excessive force may cause irreversible damage to screw threads in carburetor body.

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NOTE: Final accelerator pump adjustment should be conrmed by riding motorcycle and noting throttle response with motorcycle underway. Because of

displacement, compression ratio, cam timing, exhaust design and other, related factors, many engines will stumble or bog if throttle is abruptly cranked

fully open with engine at idle. If correct carburetor (E or G) is installed and engine properly tuned and equipped with appropriate exhaust and cam,

stumble should disappear under normal riding conditions.

GENERAL INFORMATION NOTES:

 Carburetor body has six drilled passages that are permanently sealed with drive plugs.

Removal of these plugs may cause irreversible damage to carburetor.

 To insure proper seal so needle completely shuts o fuel supply entering bowl, oat hinge, needle lift and needle must work freely and not bind. Float must

not contact bowl gasket. If problem is suspected, remove bowl and check oat movement. If obvious misalignment, binding or sticking occurs, remove,

straighten and reinstall to obtain free movement. Reset oat level and double check for free movement. To check, remove bowl (not accelerator pump

cap) and raise oat until needle is in closed position and spring in top of needle is compressed. Top of oat opposite the needle and seat assembly should

be ⁄" to ⁄" below bowl gasket surface. Float must not contact bowl gasket. See cut away bowl in Picture 48.

 When motorcycle is not running, fuel shuto valve should always be turned o to prevent possible leakage should needle and seat not seal completely.

Gasoline leaking past inlet needle may ood engine causing contamination of oil supply and damage to engine.

Any gasoline leak constitutes a re and health hazard.

CAUTION

WARNING

Picture 48