ninjette.org - View Single Post - Reviving a Ninja 250 - Low compression

spotmaxdog · February 6th, 2022, 12:38 PM

Got it running on both cylinders, it was the spark plug. Fired right up with a squirt of starting fluid (it's about 40F in my garage right now).

New problem, or a continuation of previous problem. Terrible hammering sound from the engine while running. Gonna look at the camshafts, hoping it's just one of the rockers not completely seated properly.

I think the moral of the story is don't do valvetrain work at 11pm on a worknight!

I am so lucky that 250 engines are a dime a dozen on eBay so whatever I bent, I can replace at a reasonable cost.

February 6th, 2022, 12:38 PM	#33
spotmaxdog ninjette.org member Name: Terry Location: Pensacola FL Join Date: Jan 2022 Motorcycle(s): BMW R1200GS, R1100S, Suzuki GR650, Ninja 250 Pregen Posts: 24	Got it running on both cylinders, it was the spark plug. Fired right up with a squirt of starting fluid (it's about 40F in my garage right now). New problem, or a continuation of previous problem. Terrible hammering sound from the engine while running. Gonna look at the camshafts, hoping it's just one of the rockers not completely seated properly. I think the moral of the story is don't do valvetrain work at 11pm on a worknight! I am so lucky that 250 engines are a dime a dozen on eBay so whatever I bent, I can replace at a reasonable cost.