May 27th, 2019, 03:45 AM | #1 |
ninjette.org member
Name: Daniel
Location: N.S.W. Australia
Join Date: Apr 2019 Motorcycle(s): Ninja 250r 2008 Posts: 54
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Testing if engine can reach NEAR its redline
hey everyone, lets hope this is a good question.
So i have this 08 ninja 250r... know absolutely nothing about it from PO managed to get it working......simple cleaned and retuned the carbs it has a yoshimura slipon exhaust......dosent backfire when reved to 4000 ive ridden it only in first gear due to space but its B E A utiful to ride.....good clutch still AND HERE'S MY NOOB QUESTION i wanna know it the bike will rev in neutral up too near its redline......as ive only had it up to 5600 max so far 1. Am i right that it can be harmful for prolonged periods of time 2. Is it done at a slight risk of braking your pistons bearing or link rods(always get this term mixed up) due to not being under load 3. It causes slight unnecessary wear on your engine components i would love to hear everyones thoughts about this |
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May 27th, 2019, 06:13 AM | #2 |
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
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I can't think of any good reason to do that. I've never done it to any engine I've owned in my 61 years.
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1 out of 1 members found this post helpful. |
May 27th, 2019, 07:38 AM | #3 |
ninjette.org guru
Name: Pat
Location: SW VA
Join Date: Feb 2015 Motorcycle(s): 286, 296, 599, 799 Posts: 436
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Couple things You need to know
That generatin does not have a revlimiter. It’ll go as high as it wants to until it ejects parts. No load high speed is probably the worst thing you can do to an engine. And, it won’t prove your carburator cleaning job of the mains. The engine needs to be under load to use the large a,ount of fuel the mains provide. So, got it out on the road and run it up in 2nd to 12,500. No point pulling past that as the power starts dropping off. |
1 out of 1 members found this post helpful. |
May 27th, 2019, 08:44 AM | #4 |
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
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Made me think of this video -
Link to original page on YouTube. |
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May 27th, 2019, 09:08 AM | #5 | |
ninjette.org certified postwhore
Name: Gordon
Location: new york
Join Date: Sep 2009 Motorcycle(s): '95 DUCATI 900SS/SP '07 DUCATI SS800 '19 HONDA CBR650R Posts: A lot.
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Quote:
Obviously you've got your answers ...do so at your own peril....and a shining undeniable example in form of @jkv45 Youtube vid. I'd be compelled to ask the guy in the vid, too....just what was he trying to prove or what diagnostic mechanical methodology he was practicing?
__________________________________________________
gordon@customcarbservices.com Custom Carb Service www.customcarbservices.com |
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May 27th, 2019, 11:57 AM | #6 | |
ninjette.org sage
Name: Kevin
Location: Portland, OR
Join Date: Oct 2013 Motorcycle(s): Ninja 250R, Tiger 800 XRT Posts: 828
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Quote:
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bike * miles = smiles smiles / bike = miles smiles / miles = bike |
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May 27th, 2019, 03:22 PM | #7 |
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
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I occassionally hit redline on my '08 track bike. Get too excited chasing bigger bike and don't realize I'm acceleration faster than normal. Then all of sudden, bike stops accelerating. Time to shift!
Last futzed with by DannoXYZ; May 27th, 2019 at 04:49 PM. |
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May 27th, 2019, 04:50 PM | #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
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Also without resistance from being connected to gearbox and driving bike, tension forces on con-rods on exhaust stroke will be tremendous! Over 10000 lbs! Good way snap rod and destroy engine, trying to redline in neutral.
So YES to questions 1,2, and 3. |
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