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jkv45 · May 17th, 2018, 06:24 AM

The oil level isn't overly high, is it?

Does the oil smell like gas?

If there is an issue with the float valves in the carb, gas can get into the oil and thin it out.

That's one possibility.

The other possibility would be a bad connection on the oil pressure sending unit. Carefully remove the wire and make sure the connector is clean and snug.

For you, it looks like the sending unit is going to be on the right side of the engine, towards the bottom near the front. It's screwed into the case and has a wire attached to it.

5W-40 oil is fine, as is 87 octane, for the Ninja.

Make sure it's idling at 1300 when fully warm.

May 17th, 2018, 06:24 AM	#4
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	The oil level isn't overly high, is it? Does the oil smell like gas? If there is an issue with the float valves in the carb, gas can get into the oil and thin it out. That's one possibility. The other possibility would be a bad connection on the oil pressure sending unit. Carefully remove the wire and make sure the connector is clean and snug. For you, it looks like the sending unit is going to be on the right side of the engine, towards the bottom near the front. It's screwed into the case and has a wire attached to it. 5W-40 oil is fine, as is 87 octane, for the Ninja. Make sure it's idling at 1300 when fully warm. Last futzed with by jkv45; May 17th, 2018 at 10:56 AM. Reason: added punctuation...