My bike is stuck at 65 mph and won't go any faster?

untdavid · April 2nd, 2010, 12:13 PM

Yesterday I was traveling on the HWY and couldn't get past 65mph and 9000rpm. I had the throttle fully rolled back in 6th gear. It just wouldn't go any faster and the rpms wouldn't move past 9000rpm. I was going against the wind, but don't understand why the bike wasn't climbing in RPMs at all. The winds were strong, but I was in a full tuck and it wasn't the worst gusts of wind I've experienced. An hour later, the winds died down and the bike was back to normal and I could travel faster than 65mph.

What happend?

Thanks,
David

Alex · April 2nd, 2010, 12:31 PM

Zombies.

tjkamper · April 2nd, 2010, 12:40 PM

Was it cold?

Mine does the same thing when it gets down below 20 F. If I'm on the freeway for more than 20 minutes at such low temperatures, the bike mysteriosly loses power and it does not run more than 60mph. I pull off to the side and let it idle a few minutes to warm up and then the zombies are gone.

The only explanation I have found is the cold. Even with the engine running at high RMP it is like the bike was never warmed up when you get moving at freeway speeds. THe wind chill wicks the heat away from the bike faster than it can produce it. I never have had the problem on a warm day or on side streets.

Alex · April 2nd, 2010, 12:43 PM

I wonder if the carbs are icing? I know some relatively modern but carbed bikes (Bonnevilles for example up until a year or two ago), had carb heaters to prevent the problem. I remember reading that ZRX1200's are subject to carb icing problems when ridden in very cold weather. Not sure I've heard about it on ninjettes yet, but I guess it's plausible.

tjkamper · April 2nd, 2010, 12:47 PM

That is what I think it is! THe cold air at high speed freezes up the carbs. I let it idle and the heat from the block radiates back up to the carbs and then it runs fine.

I didn't mention but it is usually hummid and foggy when it is at those temps, so moisture is probably getting into the carbs and freezing.

Soujyu · April 2nd, 2010, 12:50 PM

Are you hitting 65 mph right at 9000, or earlier?

Alex · April 2nd, 2010, 12:50 PM

More info here:

http://faq.ninja250.org/wiki/What_is_carburetor_ice%3F

PitBull · April 2nd, 2010, 01:28 PM

Looks like UNTDAVID is in the Dallas area. It definitely wasn't cold here yesterday. I believe it was in the 80's. It had to have been the zombies.

CC Cowboy · April 2nd, 2010, 02:08 PM

Governor

g21-30 · April 2nd, 2010, 03:55 PM

Quote:

Originally Posted by CC Cowboy

Governor

Of Texas?

OldGuy · April 2nd, 2010, 05:01 PM

David must be having trouble with the OD lock out.

April 2nd, 2010, 12:13 PM	#1
untdavid ninjette.org member Name: David Location: Dallas, TX Join Date: Jun 2009 Motorcycle(s): Candy Plasma Blue 250r Posts: 79	My bike is stuck at 65 mph and won't go any faster? Yesterday I was traveling on the HWY and couldn't get past 65mph and 9000rpm. I had the throttle fully rolled back in 6th gear. It just wouldn't go any faster and the rpms wouldn't move past 9000rpm. I was going against the wind, but don't understand why the bike wasn't climbing in RPMs at all. The winds were strong, but I was in a full tuck and it wasn't the worst gusts of wind I've experienced. An hour later, the winds died down and the bike was back to normal and I could travel faster than 65mph. What happend? Thanks, David

April 2nd, 2010, 12:31 PM	#2
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Zombies. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

April 2nd, 2010, 12:40 PM	#3
tjkamper ninjette.org certified postwhore Name: Travis Location: Warwick, RI Join Date: Apr 2009 Motorcycle(s): 2009 Ninja 250R Posts: A lot.	Was it cold? Mine does the same thing when it gets down below 20 F. If I'm on the freeway for more than 20 minutes at such low temperatures, the bike mysteriosly loses power and it does not run more than 60mph. I pull off to the side and let it idle a few minutes to warm up and then the zombies are gone. The only explanation I have found is the cold. Even with the engine running at high RMP it is like the bike was never warmed up when you get moving at freeway speeds. THe wind chill wicks the heat away from the bike faster than it can produce it. I never have had the problem on a warm day or on side streets. __________________________________________________ Addicted to anything that has an engine and rolls.

April 2nd, 2010, 12:43 PM	#4
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	I wonder if the carbs are icing? I know some relatively modern but carbed bikes (Bonnevilles for example up until a year or two ago), had carb heaters to prevent the problem. I remember reading that ZRX1200's are subject to carb icing problems when ridden in very cold weather. Not sure I've heard about it on ninjettes yet, but I guess it's plausible. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

April 2nd, 2010, 12:47 PM	#5
tjkamper ninjette.org certified postwhore Name: Travis Location: Warwick, RI Join Date: Apr 2009 Motorcycle(s): 2009 Ninja 250R Posts: A lot.	That is what I think it is! THe cold air at high speed freezes up the carbs. I let it idle and the heat from the block radiates back up to the carbs and then it runs fine. I didn't mention but it is usually hummid and foggy when it is at those temps, so moisture is probably getting into the carbs and freezing. __________________________________________________ Addicted to anything that has an engine and rolls.

April 2nd, 2010, 12:50 PM	#6
Soujyu ninjette.org sage Name: W Location: Austin, TX Join Date: Mar 2010 Motorcycle(s): 2010 Ninja 250R (sold), 2012 Tuono V4R Posts: 512	Are you hitting 65 mph right at 9000, or earlier? __________________________________________________ 2010 Kawasaki Ninja 250R - "Aria" (sold) 2012 Aprilia Tuono V4R - "Perrine" Proof that Harleys and Ninjettes are friendly with each other

April 2nd, 2010, 01:28 PM	#8
PitBull ninjette.org member Name: Lisa Location: DFW Join Date: Apr 2009 Motorcycle(s): 09 Ninja 250 Posts: 184	Looks like UNTDAVID is in the Dallas area. It definitely wasn't cold here yesterday. I believe it was in the 80's. It had to have been the zombies.

April 2nd, 2010, 02:08 PM	#9
CC Cowboy ninjette.org certified postwhore Name: Whodat Location: Ware Is.,MA Join Date: Jan 2009 Motorcycle(s): I pass the wind! Posts: A lot. MOTM - Mar '13, Jun '14	Governor __________________________________________________ If everything seems under control; you're just not going fast enough!

April 2nd, 2010, 05:01 PM	#11
OldGuy Live Life Name: Don Location: Lincoln, NE Join Date: Nov 2008 Motorcycle(s): 2009 Green SE Ninja 250 Posts: A lot.	David must be having trouble with the OD lock out. __________________________________________________ - ATGATT - Scorpion EX700 Hi-Vis Helmet, First Gear MeshTek 3.0 Jacket, TourMaster Transition 2 Jacket and Flex Pants, Sidi Doha boots

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