ninjette.org - View Single Post - Possible Coolant Issues and Overheating on an Ex-Ninjette Bike

jkv45 · July 21st, 2017, 06:41 PM

I think you may have had an air pocket in the cooling system when you refilled it. If the level is not up, the temp sender may not get the correct signal and the gauge will not read correctly.

As far as the stalling and not restarting until cool, my buddy's RC390 had the same issue. I'll check with him to see what they did exactly, but I know it took them a bunch of trial and error to find the problem. Then, the mechanic was out on a test ride and it spit the cam chain. They installed a completely new crate engine at no charge. It had maybe 2000 mi on it when the problems started.

Another possibility is a blown head gasket.

July 21st, 2017, 06:41 PM	#3
jkv45 Rev Limiter Name: Jay Location: WI Join Date: Jul 2013 Motorcycle(s): '06 SV650n, '00 Derbi GPR, '64 CA77 Dream 305, '70 CL450 Scrambler, numerous dirt bikes Posts: A lot. MOTM - Jun '18, Oct '16	I think you may have had an air pocket in the cooling system when you refilled it. If the level is not up, the temp sender may not get the correct signal and the gauge will not read correctly. As far as the stalling and not restarting until cool, my buddy's RC390 had the same issue. I'll check with him to see what they did exactly, but I know it took them a bunch of trial and error to find the problem. Then, the mechanic was out on a test ride and it spit the cam chain. They installed a completely new crate engine at no charge. It had maybe 2000 mi on it when the problems started. Another possibility is a blown head gasket.
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