ninjette.org - View Single Post - First time bike owner, crank with no start on 02 250

DannoXYZ · October 23rd, 2022, 11:13 AM

Hi Lewis and welcome!

91 RON on sticker is roughly same as 87 R+M/2 you find at pumps. I only need use 91 on my track bike with higher 13.5:1 compression along with more ignition-advance.

No need to remove airbox to pull carbs: https://www.ninjette.org/forums/show...&postcount=126 . I pull carbs 2x a day at track to optimise mixtures for cooler morning air vs hotter afternoon air.

Couple things to test:

1. cam-timing and valve-clearances. Adjust to looser end of range, they tighten up with wear

2.verify spark. Pull plug wire and insert spare plug. Ground case of plug to valve-cover and crank. Do you see spark? What colour is it?

3. test fuel. Use squirt bottle and spray 2-3cc petrol into airbox after air-filtre. Wait 30-sec, then crank engine. Does it run?

October 23rd, 2022, 11:13 AM	#3
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	Hi Lewis and welcome! 91 RON on sticker is roughly same as 87 R+M/2 you find at pumps. I only need use 91 on my track bike with higher 13.5:1 compression along with more ignition-advance. No need to remove airbox to pull carbs: https://www.ninjette.org/forums/show...&postcount=126 . I pull carbs 2x a day at track to optimise mixtures for cooler morning air vs hotter afternoon air. Couple things to test: 1. cam-timing and valve-clearances. Adjust to looser end of range, they tighten up with wear 2.verify spark. Pull plug wire and insert spare plug. Ground case of plug to valve-cover and crank. Do you see spark? What colour is it? 3. test fuel. Use squirt bottle and spray 2-3cc petrol into airbox after air-filtre. Wait 30-sec, then crank engine. Does it run?