March 6th, 2018, 07:40 AM | #1 |
ninjette.org newbie
Name: Josh
Location: Orland Maine 04472
Join Date: Mar 2018 Motorcycle(s): 2007 Kawasaki ninja EX250 Posts: 4
|
Ninja 250 power loss at high RPM
Hello everyone, this is my first time posting on my new account, my ninja 250 (88-07) model sputters and suddenly looses it power between 7500 - 9000 RPM and then once I hit 9500 rpm all my power come right back, I have to down shift to get my rpms to 10k to go above 60. This has been an on going issue for awhile now. I have cleaned both carbs twice, cleaned the air filter and changed the spark plugs, drained and cleaned the tank 3 times and I have run seafome threw the engine more times than I can count. Nothing seems to work and I really don't like having to take my engine to redline to drive above 60, the bike used to run great and have all the power in the world, now it's like a moped once you go above 60 and leaves me no choice but to downshift to go faster and then return to the lower gear to hold my speed. I need help to determine the problem. This ninja has been well cared for and well maintained and is kept indoors when not in use. Thanks-Josh.
|
|
March 6th, 2018, 07:59 AM | #2 |
Jigglin' your Jiglets
Name: Sean
Location: San Jose, Ca
Join Date: Jun 2011 Motorcycle(s): 2009 K1300S, 2013 Ninja 300, 2011 Ninja 250R, Faster than Unregistered's ninjette Posts: Too much.
Blog Entries: 1
MOTM - Apr '13
|
Blueninja2007! Glad to have you aboard...
__________________________________________________
If the Ninja 250 doesn't have enough power for you, then you don't know how to ride it. AFM #676 Supersports are for n00bs |
|
March 6th, 2018, 08:44 AM | #3 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
|
Hi and welcome!
Did this dropout occur gradually or suddenly? What happened in between when it was working fine to now? |
|
March 6th, 2018, 09:15 AM | #4 |
ninjette.org newbie
Name: Josh
Location: Orland Maine 04472
Join Date: Mar 2018 Motorcycle(s): 2007 Kawasaki ninja EX250 Posts: 4
|
ItWhen the problem first became apparent I just turned it on one day, warmed up my ninja and drove to work during a hot summer day and as soon as I took it on the freeway I discovered that something was wrong, 6 month later the problem has not gotten any worse and has not gotten any better.
|
|
March 6th, 2018, 09:17 AM | #5 |
ninjette.org newbie
Name: Josh
Location: Orland Maine 04472
Join Date: Mar 2018 Motorcycle(s): 2007 Kawasaki ninja EX250 Posts: 4
|
When the problem first became apparent I just turned it on one day, warmed up my ninja and drove to work during a hot summer day and as soon as I took it on the freeway I discovered that something was wrong, 6 month later the problem has not gotten any worse and has not gotten any better.
|
|
March 6th, 2018, 09:26 AM | #6 |
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
|
Sounds like a fueling (carb) issue to me.
When having running problems that you think may be carb related, think in terms of throttle position (1/8, 1/4, 1/2, 3/4, WOT) to help narrow-down the carb circuit that could be causing the issue. I would say the carbs may need to come off again and be gone through professionally - meaning total disassembly and ultrasonic cleaning. We have a member here that can do that for you. Contact "ducatiman" if you want to go that route. |
|
March 6th, 2018, 09:27 AM | #7 |
Guy Who Enjoys Riding
Name: Jim
Location: North Carolina
Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
|
I would expect it to be a carburetor problem. If Ducatiman doesn't respond soon, send him a PM and see if he can help. He's usually happy to give sound advice, even if you don't plan to send the carbs to him.
Welcome to the forum, Josh. |
|
March 6th, 2018, 10:17 AM | #8 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
|
In meantime,
1. do gas-cap mod. 2. verify you have vacuum to petcock. 3. verify petcock flows fuel with vacuum applied 4. check carb slides, that they move through entire travel smoothly with no binding Last futzed with by DannoXYZ; March 6th, 2018 at 01:23 PM. |
1 out of 1 members found this post helpful. |
March 6th, 2018, 10:34 AM | #9 |
ninjette.org certified postwhore
Name: Kerry
Location: Ventura, CA
Join Date: Jan 2016 Motorcycle(s): Ninja650 Posts: A lot.
MOTM - Apr '18, Apr '17, Apr '16
|
Welcome to the board!
|
|
March 6th, 2018, 02:08 PM | #10 | |
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
|
Quote:
Do you have another existing account on this board for me to merge this one into?
__________________________________________________
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) |
|
|
March 7th, 2018, 05:24 AM | #11 |
ninjette.org newbie
Name: Josh
Location: Orland Maine 04472
Join Date: Mar 2018 Motorcycle(s): 2007 Kawasaki ninja EX250 Posts: 4
|
Thank you all so much for the fast answers and all the help!
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Loss of Power, Won't go past 7k RPM | denshidereku | 1986 - 2007 Ninja 250R Tech Talk | 38 | March 17th, 2015 08:18 PM |
Loss of power at certain RPM | The_big_dill | 1986 - 2007 Ninja 250R Tech Talk | 21 | July 14th, 2013 01:32 PM |
Ninja 250 Power Loss | grnninja | 2008 - 2012 Ninja 250R Tech Talk | 4 | June 9th, 2013 01:09 PM |
power loss - mid to high rpms/bike newb | sparmek | 1986 - 2007 Ninja 250R Tech Talk | 9 | December 16th, 2011 08:02 PM |
Power loss at high rpm | ///NR | 2008 - 2012 Ninja 250R Tech Talk | 4 | June 29th, 2010 09:34 PM |
|
|