ninjette.org

Go Back   ninjette.org > 2008 - 2012 Ninja 250R > 2008 - 2012 Ninja 250R Tech Talk

Notices

Reply
 
Thread Tools
Old March 13th, 2018, 11:03 AM   #41
greg737
-
 
Name: -
Location: -
Join Date: May 2009

Motorcycle(s): -

Posts: A lot.
Quote:
Originally Posted by Triple Jim View Post
There isn't any oil pumped to the primary gears, they just sit where oil gets on them from the sump. Not that your post isn't good, I just didn't want B to think his oil pump may have a problem, just from hearing the gear whine.
I appreciate your respectful disagreement with my post.

If you go out to the garage and stand the EX250 up on its wheels (as level as you can), then crouch down and eyeball the location of the oil sight-glass and the (obvious beneath the right-hand engine side cover) location of the engine's crankshaft you'll realize that the resting (engine not running) level of the sump oil is below the crankshaft's primary gear.

When the engine is running the sump oil level is much lower (than this engine-off oil level sight-glass) due to the large percentage of the engine oil volume that is currently being pumped throughout the system.

The EX250 Service Manual Engine Lubrication System diagram shows pressurized oil delivered to each of the engine's three main bearings with outputs from the crankshaft into each of the piston big ends and at both ends of the crankshaft (with the right-hand end being the area of the cam chain and the primary gear).
greg737 is offline   Reply With Quote




Old March 13th, 2018, 11:10 AM   #42
Hesh
ninjette.org member
 
Hesh's Avatar
 
Name: B
Location: somewhere
Join Date: Jan 2018

Motorcycle(s): 2009 Ninja 250r SE

Posts: 35
Quote:
Originally Posted by greg737 View Post
I appreciate your respectful disagreement with my post.

If you go out to the garage and stand the EX250 up on its wheels (as level as you can), then crouch down and eyeball the location of the oil sight-glass and the (obvious beneath the right-hand engine side cover) location of the engine's crankshaft you'll realize that the resting (engine not running) level of the sump oil is below the crankshaft's primary gear.

When the engine is running the sump oil level is much lower (than this engine-off oil level sight-glass) due to the large percentage of the engine oil volume that is currently being pumped throughout the system.

The EX250 Service Manual Engine Lubrication System diagram shows pressurized oil delivered to each of the engine's three main bearings with outputs from the crankshaft into each of the piston big ends and at both ends of the crankshaft (with the right-hand end being the area of the cam chain and the primary gear).
So if that's a possible cause of the whine, does it mean that maybe I haven't put enough oil when changing it? It was my first time, but the oil level was between the two lines, closer to the upper one, so I think I got that one right lol.
__________________________________________________
Semper Fidelis. Semper Porro.
Hesh is offline   Reply With Quote


Old March 13th, 2018, 11:15 AM   #43
greg737
-
 
Name: -
Location: -
Join Date: May 2009

Motorcycle(s): -

Posts: A lot.
Quote:
Originally Posted by Hesh View Post
So if that's a possible cause of the whine, does it mean that maybe I haven't put enough oil when changing it? It was my first time, but the oil level was between the two lines, closer to the upper one, so I think I got that one right lol.
That's the part of my post that Triple Jim was absolutely right to be concerned about. It was never my intention to suggest that your EX250 was currently low on oil or that its oil pump wasn't operating properly.

You sound like a very conscientious owner, I'm sure you're doing a fine job with things like engine oil.
greg737 is offline   Reply With Quote


Old March 13th, 2018, 11:20 AM   #44
Triple Jim
Guy Who Enjoys Riding
 
Triple Jim's Avatar
 
Name: Jim
Location: North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Greg, you're saying that oil pumped to the right main bearing gets out into the primary gear area and onto the gears? OK, I'll buy that. I think I was probably biased from my 2-stroke experience... those engines have sealed bearings, of course, so no oil gets to the primary gears by that route.
Triple Jim is offline   Reply With Quote


Old March 13th, 2018, 11:30 AM   #45
greg737
-
 
Name: -
Location: -
Join Date: May 2009

Motorcycle(s): -

Posts: A lot.
Quote:
Originally Posted by Triple Jim View Post
Greg, you're saying that oil pumped to the right main bearing gets out into the primary gear area and onto the gears? OK, I'll buy that. I think I was probably biased from my 2-stroke experience... those engines have sealed bearings, of course, so no oil gets to the primary gears by that route.
Yes, the EX250 Service Manual Engine Lubrication System diagram uses what looks like a large comma (or maybe it's an apostrophe) to indicate locations where oil under pressure flows out of ports/vents in the camshafts and gearbox shafts and from the perimeters of plain bearings and there's a comma/apostrophe shown at both ends of the crankshaft.

(I'm looking at my Pre-Gen Service Manual but I'm pretty sure the crankshaft oil flow didn't change with the Next-Gen)
greg737 is offline   Reply With Quote


Old March 13th, 2018, 12:00 PM   #46
jkv45
Rev Limiter
 
jkv45's Avatar
 
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
Quote:
Originally Posted by greg737 View Post
But I absolutely love me some good straight-cut gear noise.

The 5th Generation VFR 800 (1998 to 2001) is the (everyday motorcycle) king of gear-whine with its gear-driven camshafts. All of those wonderful straight-cut cogs mated to each other from the crankshaft up to the four individual camshafts of the V-4.
Me too.

My son has a '98 VFR, and he loves the gear sound. It's pretty loud (in a good way).
jkv45 is offline   Reply With Quote


Old March 13th, 2018, 12:07 PM   #47
jkv45
Rev Limiter
 
jkv45's Avatar
 
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
Quote:
Originally Posted by Hesh View Post
So if that's a possible cause of the whine, does it mean that maybe I haven't put enough oil when changing it? It was my first time, but the oil level was between the two lines, closer to the upper one, so I think I got that one right lol.
Here's the proper procedure, just for reference -

https://faq.ninja250.org/wiki/How_do_I_check_my_oil%3F

One common mistake people make is to change the oil and filter, then fill the engine until the sightglass is at the proper level. Once the engine starts and oil is pumped into the filter the level drops - and it's too low.

That's why you need to run it briefly (there's plenty of oil to be safe temporarily), then shut it off and check it again after waiting the proper amount of time. The time delay gives the oil time to run back down to the sump - which is all factored-in to the correct level reading. The bike also needs to be help perfectly level to get an accurate reading.
jkv45 is offline   Reply With Quote


Old March 13th, 2018, 12:41 PM   #48
Hesh
ninjette.org member
 
Hesh's Avatar
 
Name: B
Location: somewhere
Join Date: Jan 2018

Motorcycle(s): 2009 Ninja 250r SE

Posts: 35
Quote:
Originally Posted by jkv45 View Post
Here's the proper procedure, just for reference -

https://faq.ninja250.org/wiki/How_do_I_check_my_oil%3F

One common mistake people make is to change the oil and filter, then fill the engine until the sightglass is at the proper level. Once the engine starts and oil is pumped into the filter the level drops - and it's too low.

That's why you need to run it briefly (there's plenty of oil to be safe temporarily), then shut it off and check it again after waiting the proper amount of time. The time delay gives the oil time to run back down to the sump - which is all factored-in to the correct level reading. The bike also needs to be help perfectly level to get an accurate reading.
Yeah, I read all that carefully before doing it and did it exactly how it's supposed to be and the oil level was good.

About the whining, I guess I'll have to learn to live with it if I don't find what's causing it for sure and get it fixed. I wouldn't mind it if it's a little, but it does silence the actual bike noise, which I'd much rather be hearing lol.
__________________________________________________
Semper Fidelis. Semper Porro.
Hesh is offline   Reply With Quote


Old March 13th, 2018, 05:32 PM   #49
Z1R rider
ninjette.org certified postwhore
 
Z1R rider's Avatar
 
Name: Roger
Location: Mitchell, South Dakota
Join Date: Apr 2014

Motorcycle(s): 1978 Z1R, 1999 EX250

Posts: A lot.
MOTY - 2018, MOTM - Oct '16
Get a header, that'll drown out the whining.
__________________________________________________
top of the day to ya Unregistered
Z1R rider is offline   Reply With Quote


Old March 14th, 2018, 04:20 AM   #50
CC Cowboy
ninjette.org certified postwhore
 
CC Cowboy's Avatar
 
Name: Whodat
Location: Ware Is.,MA
Join Date: Jan 2009

Motorcycle(s): I pass the wind!

Posts: A lot.
MOTM - Mar '13, Jun '14
Quote:
Originally Posted by Hesh View Post
Yeah, I read all that carefully before doing it and did it exactly how it's supposed to be and the oil level was good.

About the whining, I guess I'll have to learn to live with it if I don't find what's causing it for sure and get it fixed. I wouldn't mind it if it's a little, but it does silence the actual bike noise, which I'd much rather be hearing lol.
Enough of your whining, just get ear plugs!
__________________________________________________
If everything seems under control; you're just not going fast enough!
CC Cowboy is offline   Reply With Quote


Old March 14th, 2018, 04:45 AM   #51
Hesh
ninjette.org member
 
Hesh's Avatar
 
Name: B
Location: somewhere
Join Date: Jan 2018

Motorcycle(s): 2009 Ninja 250r SE

Posts: 35
Quote:
Originally Posted by CC Cowboy View Post
Enough of your whining, just get ear plugs!
Attached Images
File Type: jpg e1feea2df73447797ac9ebf37b09848a.jpg (49.3 KB, 0 views)
__________________________________________________
Semper Fidelis. Semper Porro.
Hesh is offline   Reply With Quote


Old March 14th, 2018, 07:22 AM   #52
CC Cowboy
ninjette.org certified postwhore
 
CC Cowboy's Avatar
 
Name: Whodat
Location: Ware Is.,MA
Join Date: Jan 2009

Motorcycle(s): I pass the wind!

Posts: A lot.
MOTM - Mar '13, Jun '14

No seriously, I always wear earplugs and you can hear your engine much better.
__________________________________________________
If everything seems under control; you're just not going fast enough!
CC Cowboy is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old March 14th, 2018, 07:46 AM   #53
Hesh
ninjette.org member
 
Hesh's Avatar
 
Name: B
Location: somewhere
Join Date: Jan 2018

Motorcycle(s): 2009 Ninja 250r SE

Posts: 35
Quote:
Originally Posted by CC Cowboy View Post
No seriously, I always wear earplugs and you can hear your engine much better.
Pretending the noise isn't there isn't the solution for me lol. Gotta fix that mf.
__________________________________________________
Semper Fidelis. Semper Porro.
Hesh is offline   Reply With Quote


Old March 14th, 2018, 08:11 AM   #54
DannoXYZ
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
Quote:
Originally Posted by Hesh View Post
Pretending the noise isn't there isn't the solution for me lol. Gotta fix that mf.
Yeah, noise could be a warning of impending mechanical issues.
DannoXYZ is offline   Reply With Quote


Old March 19th, 2018, 09:10 AM   #55
csmith12
The Corner Whisperer
 
csmith12's Avatar
 
Name: Chris (aka Reactor)
Location: Northern KY
Join Date: May 2011

Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track)

Posts: Too much.
MOTY 2015, MOTM - Nov '12, Nov '13
I bought my 250 new gen brand spanking new and put the very first mile on the bike. It has made that whine since mile 1, and with 5k+ street/track/race miles on it, it makes the very same whine to this very day. No harm in ensuring proper operation though. Stopped worrying about it long ago...

Earplug tip is valid: they dull the less important stuff so you can hear vital things.

EDIT: Now that I think about it more, seems the whine is less pronounced on higher mileage bikes.
csmith12 is offline   Reply With Quote


1 out of 1 members found this post helpful.
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
whining sound mikedabike64 2008 - 2012 Ninja 250R Tech Talk 8 November 3rd, 2013 08:58 PM
Quiet whining sound with bike off Tim250 2008 - 2012 Ninja 250R Tech Talk 15 May 20th, 2012 06:19 AM
Whining under power only headshrink 2008 - 2012 Ninja 250R Tech Talk 36 August 23rd, 2011 05:48 PM
Ninja whining???? Ninja250under 2008 - 2012 Ninja 250R Tech Talk 10 November 10th, 2010 11:39 AM
whining sound bigrodge8 2008 - 2012 Ninja 250R Tech Talk 31 June 5th, 2010 06:18 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 01:19 AM.


Website uptime monitoring Host-tracker.com
Powered by vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are © Copyright 2022 ninjette.org, All rights reserved.