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a2 carb jetting
Posted: Mon Aug 20, 2001 12:52 pm
by Smith, Don TRAN:EX
I just purchased an A2, that has unacceptably low torque at clutch
engagement speed up to about 3700 rpm.
I suspect that the pilot jet (and perhaps the main jet) is too lean.
Any advice as to better jetting?
Thx, Don
a2 carb jetting
Posted: Tue Aug 21, 2001 7:07 am
by rclarke@bd.com
I've got an A3 US version. Based on info from the net many moons ago, I
switched to a KLX needle, changed the pilot to 40 from a 38, dropped the
main to 142 from 148. That's right, the main was way too rich. The original
poster recommended putting the needle on the third notch. My mileage
dropped to 38mpg. I tried dropping the needle to the second notch (40mpg)
then all the way down to the first (42mpg). There was a reduced throttle
response when I went to the first notch, but none of the lean surging
experienced with stock jetting. Low end (3-4k rpm) is much better than a
stock '00 KLR I compared to this summer. No pinging with 87 octane even
with the 142 main.
Lately my mileage is suffering (down to 38) and the prime suspect is a
leaky deceleration circuit diaphragm. If you've got an A2 yours may be
getting old and cracked too.
-Rick
"Smith, Don TRAN:EX" on 08/20/2001 01:50:04 PM
To: "'
DSN_klr650@yahoogroups.com'" DSN_klr650@yahoogroups.com>
cc:
Subject: [DSN_klr650] A2 carb jetting
I just purchased an A2, that has unacceptably low torque at clutch
engagement speed up to about 3700 rpm.
I suspect that the pilot jet (and perhaps the main jet) is too lean.
Any advice as to better jetting?
Thx, Don
a2 carb jetting
Posted: Tue Aug 21, 2001 7:14 am
by Tengai650
At 6:58 AM -0400 8/21/01, rclarke@... wrote:
>I've got an A3 US version. Based on info from the net many moons ago, I
>switched to a KLX needle, changed the pilot to 40 from a 38, dropped the
>main to 142 from 148. That's right, the main was way too rich.
If I recall correctly, isn't the KLX stock main even leaner (138)?
Mark
B2
A2
A3
new tdm... but not here nklr
Posted: Tue Aug 21, 2001 8:25 am
by k650dsn@aol.com
Yamaha will be rolling out the new TDM this year. It will be a 900cc
with revised fairing and 24lbs lighter than the 850. Sadly, it won't
be here in the USA.
Story on
www.motorcyclenews.com
Gino
a2 carb jetting
Posted: Tue Aug 21, 2001 8:26 am
by rclarke@bd.com
>If I recall correctly, isn't the KLX stock main even leaner (138)?
No idea!
-Rick