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'97 Spirit 1100 - Chandler, AZ
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I HAVE A 97 HONDA SHADOW SPIRIT VT1100 ALL PLUGS ARE GETTING SPARK THE REAR CYLINDER IS MNOT FIRING. FRONT CYLINDER EXHAUST IS BLOWING WARM EXHAUST REAR CYLINDER EXHAUST IS BLOWING COLD??? NEW COILS PLUGS GAS CARB REBUILT?? ANY HELP WILL BE HIGHLY APPRCIATED THANK YOU. EMAIL [email protected] SORRY ABOUT ALL CAPS. KEYBOARD IS BROKE
If all the cylinders are indeed getting spark, then something is acting-up with the rear cylinder's carburetor.

I like to check easy stuff first:
-See if the idle mixture screw is open. 1-1/2 to 2 turns is in the ballpark. If it's closed or set too lean, no or too little idle fuel is getting to the cylinder.
If you increase speed to say ~1500 RPM, does the cylinder begin to fire? This would confirm the idle screw is set too lean or is closed.

-If that doesn't fix it, then I'd check to see if there's fuel in the float bowl. If none, then the new needle/seat are likely mis-adjusted or somehow stuck closed.
If there is fuel in the float bowl, then likely a plugged idle jet or passage.

Let us know what you find-out! Kevin
 
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