Stumped

LoD575 · May 17th, 2013, 03:14 PM

Two weeks ago I was riding around town for about an hour and a half. Bike was running perfectly normal but about a block away from the house the revs seemed to be hanging before slowly dropping back to normal idle then died as pulling into driveway. Seemed to be a sudden lean running condition.

Specs on bike: Area P full system, KN Pod filter, Sportisi Jet Kit. Pod filter was dirty as crap, pulled it off and cleaned it. Same rev hanging problem continued. Wasn't able to look further into the problem at time due to leaving for a business trip.

Today I was able to start looking further into the problem. Pulled carbs out, checked slides, needles, jets, and floats. No problem identified. Throttle cables properly adjusted. Put carbs back in but problem continues. Rev hang seems to start at about 4k.

I ride the bike on a near daily basis, was never stored or sat for an extended period of time. For the problem to arise suddenly it has me stumped.

Here is a quick Video

Link to original page on YouTube.

mgentz · May 17th, 2013, 03:31 PM

What jetting?

LoD575 · May 17th, 2013, 04:23 PM

Jetting specs: 105 DJ, 38 Pilot, Clip in 4th position on needle.

alex.s · May 17th, 2013, 04:31 PM

last valve check was...?

LoD575 · May 17th, 2013, 04:52 PM

Quote:

Originally Posted by alex.s

last valve check was...?

Have not done a valve check. Bike is a 2012 with 2,952.6 miles.

I did the full exhaust, pod filter, Kleen air delete in July 2012.

alex.s · May 17th, 2013, 05:31 PM

what was the purpose for the pod filters? are you trying to get power? you can get more power with the airbox than you can with pod filters.

your valve train sounds horrible btw, especially for only 3k miles. which makes me think the jetting has been extremely lean, overheating the exhaust valves. or the guy you bought it from was a scam artist and the bike has more like 15k miles on it.

do a valve adjustment and check your cam chain to make sure its in spec. put the airbox back in. rejet.

LoD575 · May 19th, 2013, 09:53 AM

I went the pod filter route for power. I was planning on putting the airbox back in along with re-jetting next month after moving, going from 4,200 ft elevation to 200 ft.

Strange that you mention how the valve train sounds. I have been the only owner of the bike and the valve train has sounded like that since purchase.

After the move I will tear it down for a valve and cam chain check.

Thanks for the input alex.s

With the bike naked I also discovered the right fork seal to be leaking.

May 17th, 2013, 03:14 PM	#1
LoD575 ninjette.org sage Name: Steve Location: Valdosta GA, US Join Date: Jul 2011 Motorcycle(s): 2012 Ninja 250, 2006 Ninja ZX6R-636 Posts: 661	Stumped Two weeks ago I was riding around town for about an hour and a half. Bike was running perfectly normal but about a block away from the house the revs seemed to be hanging before slowly dropping back to normal idle then died as pulling into driveway. Seemed to be a sudden lean running condition. Specs on bike: Area P full system, KN Pod filter, Sportisi Jet Kit. Pod filter was dirty as crap, pulled it off and cleaned it. Same rev hanging problem continued. Wasn't able to look further into the problem at time due to leaving for a business trip. Today I was able to start looking further into the problem. Pulled carbs out, checked slides, needles, jets, and floats. No problem identified. Throttle cables properly adjusted. Put carbs back in but problem continues. Rev hang seems to start at about 4k. I ride the bike on a near daily basis, was never stored or sat for an extended period of time. For the problem to arise suddenly it has me stumped. Here is a quick Video Link to original page on YouTube. Last futzed with by LoD575; May 17th, 2013 at 04:56 PM.

May 17th, 2013, 04:31 PM	#4
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	last valve check was...? __________________________________________________

May 17th, 2013, 05:31 PM	#6
alex.s wat Name: wat Location: tustin/long beach Join Date: Sep 2009 Motorcycle(s): wat Posts: Too much. Blog Entries: 5 MOTM - Oct '12, Feb '14	what was the purpose for the pod filters? are you trying to get power? you can get more power with the airbox than you can with pod filters. your valve train sounds horrible btw, especially for only 3k miles. which makes me think the jetting has been extremely lean, overheating the exhaust valves. or the guy you bought it from was a scam artist and the bike has more like 15k miles on it. do a valve adjustment and check your cam chain to make sure its in spec. put the airbox back in. rejet. __________________________________________________
	1 out of 1 members found this post helpful.

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May 17th, 2013, 03:31 PM	#2
mgentz Board Member Name: ... Location: WI Join Date: Dec 2011 Motorcycle(s): 250R (street), 250R (dirt) Posts: A lot.	What jetting?

May 17th, 2013, 04:23 PM	#3
LoD575 ninjette.org sage Name: Steve Location: Valdosta GA, US Join Date: Jul 2011 Motorcycle(s): 2012 Ninja 250, 2006 Ninja ZX6R-636 Posts: 661	Jetting specs: 105 DJ, 38 Pilot, Clip in 4th position on needle.

May 19th, 2013, 09:53 AM	#7
LoD575 ninjette.org sage Name: Steve Location: Valdosta GA, US Join Date: Jul 2011 Motorcycle(s): 2012 Ninja 250, 2006 Ninja ZX6R-636 Posts: 661	I went the pod filter route for power. I was planning on putting the airbox back in along with re-jetting next month after moving, going from 4,200 ft elevation to 200 ft. Strange that you mention how the valve train sounds. I have been the only owner of the bike and the valve train has sounded like that since purchase. After the move I will tear it down for a valve and cam chain check. Thanks for the input alex.s With the bike naked I also discovered the right fork seal to be leaking.