Bike won't Rev past 11k in 4th

Dragger_2656 · May 30th, 2015, 04:12 PM

I took my bike drag racing last weekend and later on in the night it began not not revving out in 4th.what sort of things would cause this.

Thanks in advance for any help.

CC Cowboy · May 30th, 2015, 04:39 PM

Quote:

Originally Posted by Dragger_2656

I took my bike drag racing last weekend and later on in the night it began not not revving out in 4th.what sort of things would cause this.

Thanks in advance for any help.

It's tired!

Motofool · May 30th, 2015, 05:08 PM

Quote:

Originally Posted by Dragger_2656

I took my bike drag racing last weekend and later on in the night it began not not revving out in 4th.what sort of things would cause this.

Thanks in advance for any help.

Welcome !!!

I would start by cleaning the air filter.

How do you drag race a 2010 Kawasaki Ninja 250R SE?

Dragger_2656 · May 30th, 2015, 05:25 PM

with a lot of patience

My local track will within reason let you racing anything as long as it is mechanically sound. we once had a guy race a 50cc pit bike, it was like watching paint dry when he ran.

micoulisninja · May 30th, 2015, 06:16 PM

if it is a fuel injected version I suggest you replace the fuel pump....

Dragger_2656 · May 30th, 2015, 06:24 PM

Nah, it's carboretted.it also has a k&n panel filter, full exhaust and dynojet jet kit.

jkv45 · May 30th, 2015, 07:54 PM

First thing that always comes to mind with strange issues that pop up is fuel.

How old is the gas? What gas are you running? Is the engine stock except for the exhaust and jetting?

Dragger_2656 · May 30th, 2015, 08:07 PM

I was running 95 octane. I will admit I topped off the tank with some fuel from a jerry can that I filled up the previous day and something didn't seem right about it.it just seemed to smell off and a bit greasier than usual

Motofool · May 30th, 2015, 10:17 PM

Quote:

Originally Posted by Dragger_2656

with a lot of patience

My local track will within reason let you racing anything as long as it is mechanically sound. we once had a guy race a 50cc pit bike, it was like watching paint dry when he ran.

Yes, I have just read your other thread:
https://www.ninjette.org/forums/show...65#post1020865

Could it be that one of the new jets has unscrewed itself due to vibrations?

jkv45 · May 31st, 2015, 08:30 AM

Quote:

Originally Posted by Dragger_2656

I was running 95 octane. I will admit I topped off the tank with some fuel from a jerry can that I filled up the previous day and something didn't seem right about it.it just seemed to smell off and a bit greasier than usual

I'd start there then.

Is 95 (RON?) the rating in the manual? Always run the lowest octane you can without detonating for the most power. I only go up in octane to get away from ethanol-blend. Not sure if that's an option for you.

May 30th, 2015, 04:12 PM	#1
Dragger_2656 ninjette.org newbie Name: Mathew Location: Gladstone, QLD, Australia Join Date: Sep 2014 Motorcycle(s): 2010 kawasaki Ninja 250R SE Posts: 9	Bike won't Rev past 11k in 4th I took my bike drag racing last weekend and later on in the night it began not not revving out in 4th.what sort of things would cause this. Thanks in advance for any help.

May 30th, 2015, 06:16 PM	#5
micoulisninja modaholic junkie Name: Nick Location: Athens, Greece Join Date: Sep 2012 Motorcycle(s): 2001 ZX-12R, 2009 ninja 345cc and plenty of others in the past... Posts: 438 Blog Entries: 2	if it is a fuel injected version I suggest you replace the fuel pump.... __________________________________________________ If noone has tried it before, I will !!!

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May 30th, 2015, 05:25 PM	#4
Dragger_2656 ninjette.org newbie Name: Mathew Location: Gladstone, QLD, Australia Join Date: Sep 2014 Motorcycle(s): 2010 kawasaki Ninja 250R SE Posts: 9	with a lot of patience My local track will within reason let you racing anything as long as it is mechanically sound. we once had a guy race a 50cc pit bike, it was like watching paint dry when he ran.

May 30th, 2015, 06:24 PM	#6
Dragger_2656 ninjette.org newbie Name: Mathew Location: Gladstone, QLD, Australia Join Date: Sep 2014 Motorcycle(s): 2010 kawasaki Ninja 250R SE Posts: 9	Nah, it's carboretted.it also has a k&n panel filter, full exhaust and dynojet jet kit.

May 30th, 2015, 07:54 PM	#7
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	First thing that always comes to mind with strange issues that pop up is fuel. How old is the gas? What gas are you running? Is the engine stock except for the exhaust and jetting?

May 30th, 2015, 08:07 PM	#8
Dragger_2656 ninjette.org newbie Name: Mathew Location: Gladstone, QLD, Australia Join Date: Sep 2014 Motorcycle(s): 2010 kawasaki Ninja 250R SE Posts: 9	I was running 95 octane. I will admit I topped off the tank with some fuel from a jerry can that I filled up the previous day and something didn't seem right about it.it just seemed to smell off and a bit greasier than usual