February 8th, 2013, 11:51 PM | #1 |
Nerd
Name: Chris
Location: Tujunga
Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672
|
Questions on valves.
So I adjusted my valve clearances to the loosest possible while still being "In Spec" My engine is pretty loud. Will I cause any damage like this?
Both the Intake and Exhaust clearances are at their max clearances. Also, I have Idle screws turned ALL the way in on my carbs, how do i know where they should be adjusted to? Bike currently idles, but is very laggy with throttle response.
__________________________________________________
It doesn't LOOK that steep. But you can go first... |
|
February 9th, 2013, 12:56 AM | #2 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
|
What mods, do you have on your bike? full exhaust, slip-on, stock intake, stock intake without snorkel, aftermarket oem style air filter? or Pod filters? Shimmed needles?
Generally 2.5 full turns back out from bottomed out is a good starting point for the idle mixture screws.
__________________________________________________
HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
|
February 9th, 2013, 02:57 AM | #3 |
Nerd
Name: Chris
Location: Tujunga
Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672
|
Stock Exhaust, K&N Drop In Air Filter. 100 Main Jet, Factory Pro Needles middle position.
__________________________________________________
It doesn't LOOK that steep. But you can go first... |
|
February 9th, 2013, 05:52 AM | #4 |
Daily Ninjette rider
Name: Hernan
Location: Florida
Join Date: Mar 2011 Motorcycle(s): 2007 Ninja 250 Posts: A lot.
MOTY - 2016, MOTM - Dec '12, Jan '14, Jan '15, May '16
|
Service and lubricate your cam chain tensioner (CCT).
__________________________________________________
Motofool .................................Never ride faster than your guardian angel can fly "Mankind is composed of two sorts of men — those who love and create, and those who hate and destroy. Love is the bond between men, the way to teach and the center of the world." - José Martí |
|
February 9th, 2013, 08:49 AM | #5 |
Nerd
Name: Chris
Location: Tujunga
Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672
|
I've got a manual chain tensioner because i broke my last one. It is taking up the slack so its i think the valves themselves making the noise.
__________________________________________________
It doesn't LOOK that steep. But you can go first... |
|
February 9th, 2013, 11:57 AM | #6 |
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
|
100 main is way too rich for stock setup like yours. The drop in air filter doesn't make much difference
__________________________________________________
|
|
February 9th, 2013, 12:05 PM | #7 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
|
When you said loud, what do you mean? Did you cover up the KLEEN air system?
__________________________________________________
HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
|
February 9th, 2013, 06:37 PM | #8 |
ninjette.org sage
Name: Brad
Location: Sydney
Join Date: Mar 2012 Motorcycle(s): Ninja 250r 2010 SE Posts: 573
|
You only need a 98 main jet and no shims under your washers with a stock airbox with the snorkel still in. I have a dyno sheet to prove this.
Clean your shim buckets, my mates car engine was making a ticking a noise and it turned out to be dirty tappets. |
|
February 10th, 2013, 11:40 PM | #9 | |
Nerd
Name: Chris
Location: Tujunga
Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672
|
Quote:
I can only get it to idle, and no amount of throttle manipulation can get the bike to rev up any. Could the main jet affect it like this? I even put the stock needles back in an nothing.
__________________________________________________
It doesn't LOOK that steep. But you can go first... |
|
|
February 11th, 2013, 07:05 AM | #10 |
RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
|
Are you positive that the diaphragms are not torn and all the jet and air orifices in the carbs are clean and clog-free?
__________________________________________________
HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
|
February 11th, 2013, 04:22 PM | #12 |
Nerd
Name: Chris
Location: Tujunga
Join Date: Mar 2012 Motorcycle(s): Ducati Hyperstrada Posts: 672
|
It does not rev up. I am manually opening the butterflys with my finger. It will die if i slam the throttle shut, but does not rev up when i open it.
Diaphrams are not torn
__________________________________________________
It doesn't LOOK that steep. But you can go first... |
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Measuring valves | Nemesis | 2008 - 2012 Ninja 250R Tech Talk | 75 | August 4th, 2019 06:59 AM |
How to know you need your valves adjusted? | Hero Danny | 2008 - 2012 Ninja 250R Tech Talk | 42 | July 26th, 2014 06:39 PM |
just adjusted Valves. ... | Fakker | 1986 - 2007 Ninja 250R Tech Talk | 7 | July 2nd, 2014 10:28 AM |
valves keep going out of spec. Causes? | Monkeytofu | 1986 - 2007 Ninja 250R Tech Talk | 7 | September 5th, 2012 07:16 PM |
Valves Job - lots of questions | indr | 2008 - 2012 Ninja 250R Tech Talk | 14 | November 24th, 2010 08:08 PM |
|
|