low rpm trouble and gurgle sound?

blantant · March 25th, 2009, 11:01 PM

Hi all, I find this forum quite helpful.

So my problem began as a conspicuous change in the sound of the engine at idle and low rpm. My commute is mostly freeway though so i forget about it until i exit back on to surface streets and it reappears.

I rode about half a tank like this and it seemed to be getting worse. The engine has a wet, gurgling sound from idle-5k. It is slow and unresponsive, but fine in the higher rpms. Backing off throttle in the low range, the rpms seem to linger and slowly sputter their way back to idle. I thought it might have been bad gas, but i filled up again and it's still there.

My 08 250r has been trouble free until this. I'm at 8k miles. I've been unfortunately busy, sick, sleep deprived, etc.. so as much as i would like to troubleshoot this (the only DIY i've done is the snorkel remove), if it's not an easy fix, maybe i will have to take it to a dealer.

Maybe it's the spark plugs? Any ideas? Thanks all

kkim · March 25th, 2009, 11:08 PM

you removed the snorkel... did you do any changes to the jetting?

was this gurgling a sudden change?

blantant · March 25th, 2009, 11:13 PM

as far as i can tell, gradually getting worse over the last 100 miles.

(the snorkel was removed about 2k miles ago after i noticed that the people who installed my dynojet kit forgot to remove it. )

kkim · March 26th, 2009, 12:11 AM

have you checked your air filter?

... and have you had the valves checked? they were due at 7,500 miles.

March 25th, 2009, 11:01 PM	#1
blantant ninjette.org newbie Name: noch Location: los angeles Join Date: Mar 2009 Motorcycle(s): 08 250r Posts: 6	low rpm trouble and gurgle sound? Hi all, I find this forum quite helpful. So my problem began as a conspicuous change in the sound of the engine at idle and low rpm. My commute is mostly freeway though so i forget about it until i exit back on to surface streets and it reappears. I rode about half a tank like this and it seemed to be getting worse. The engine has a wet, gurgling sound from idle-5k. It is slow and unresponsive, but fine in the higher rpms. Backing off throttle in the low range, the rpms seem to linger and slowly sputter their way back to idle. I thought it might have been bad gas, but i filled up again and it's still there. My 08 250r has been trouble free until this. I'm at 8k miles. I've been unfortunately busy, sick, sleep deprived, etc.. so as much as i would like to troubleshoot this (the only DIY i've done is the snorkel remove), if it's not an easy fix, maybe i will have to take it to a dealer. Maybe it's the spark plugs? Any ideas? Thanks all

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
want to ask about RPM trouble	vaizhs	2008 - 2012 Ninja 250R Tech Talk	11	February 6th, 2015 03:31 PM
Just cleaned carbs - now stuttering at low RPM, fine at high RPM	Ohio	2008 - 2012 Ninja 250R Tech Talk	20	August 5th, 2014 10:30 PM
Buzzing sound between 6000-7000 RPM, What's wrong?	BearZ	2008 - 2012 Ninja 250R Tech Talk	6	October 10th, 2013 03:18 PM
Low rpm power not there?	zzrguy	1986 - 2007 Ninja 250R Tech Talk	22	June 20th, 2012 06:37 PM
weird sound around 8500-9000 rpm	rsamtani	2008 - 2012 Ninja 250R Tech Talk	26	June 12th, 2010 10:09 PM

March 25th, 2009, 11:08 PM	#2
kkim Join Date: Nov 2008 Posts: Too much.	you removed the snorkel... did you do any changes to the jetting? was this gurgling a sudden change?

March 25th, 2009, 11:13 PM	#3
blantant ninjette.org newbie Name: noch Location: los angeles Join Date: Mar 2009 Motorcycle(s): 08 250r Posts: 6	as far as i can tell, gradually getting worse over the last 100 miles. (the snorkel was removed about 2k miles ago after i noticed that the people who installed my dynojet kit forgot to remove it. )

March 26th, 2009, 12:11 AM	#4
kkim Join Date: Nov 2008 Posts: Too much.	have you checked your air filter? ... and have you had the valves checked? they were due at 7,500 miles.