ninjette.org - View Single Post - Ninja dying at idle / dying when throttle / trouble starting

DannoXYZ · January 24th, 2018, 08:17 AM

Bill’s onto something here! Yes, test fuel flow to carbs.

I had this exact problem on my race bike last year. Took a lot of cranking to start. Would die at low-speeds or idling. Turned out I had a kinked vacuum hose going to petcock. It would only let enough vacuum through when engine was revving. At low speeds and idle, kink would limit vacuum and petcock would close up. Leading to dying engine within 20-30 seconds.

January 24th, 2018, 08:17 AM	#8
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Bill’s onto something here! Yes, test fuel flow to carbs. I had this exact problem on my race bike last year. Took a lot of cranking to start. Would die at low-speeds or idling. Turned out I had a kinked vacuum hose going to petcock. It would only let enough vacuum through when engine was revving. At low speeds and idle, kink would limit vacuum and petcock would close up. Leading to dying engine within 20-30 seconds.