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CRF230F Dialed in Jetting
Posted: Wed Sep 19, 2007 1:05 pm
by jtcohenour
I have been racking my brain trying to get my jetting dialed in correctly. The bike pops on decel still. My set-up is as follows:
132 Main
48 Pilot
Needle in Middle Clip Position
Dr. D Aftermarked Exhaust
Uni Filter
Fuel Screw 2 turns out
Posted: Wed Sep 19, 2007 7:55 pm
by gal8x
you opend the air box? removed the snorkel?
check for air and exhaust leeks.
Posted: Wed Sep 19, 2007 8:30 pm
by Asmith
gal8x wrote:you opend the air box? removed the snorkel?
check for air and exhaust leaks.
Yup and try opening the fuel screw up 1/8 of a turn at a time.
Posted: Thu Sep 20, 2007 7:22 am
by jtcohenour
I sprayed some wd40 around the airbox and didn't notice any increases in rpm. How do I check the exhaust for leaks?
As for the fuel screw I am hesitant to open it more than two turns as I hear it can fall out?
Posted: Thu Sep 20, 2007 7:45 am
by Asmith
jtcohenour wrote:I sprayed some wd40 around the airbox and didn't notice any increases in rpm. How do I check the exhaust for leaks?
As for the fuel screw I am hesitant to open it more than two turns as I hear it can fall out?
Look for signs of exhaust gases escaping. Mix some dish soap and water and put around seal with a small paintbrush, start bike and look for bubbles.
The Fuel screw will tolerate 2 1/2 turns without issue.
Posted: Thu Sep 20, 2007 10:12 am
by jtcohenour
Once again thanks for the advice. I will let you know how it goes.
Posted: Thu Sep 20, 2007 4:37 pm
by jtcohenour
There appears to be a leak at the header connection to the head. Do you know the torque setting for the nuts that hold the exhaust to the head? I do not want to overtighten.
Posted: Thu Sep 20, 2007 7:43 pm
by gal8x
jtcohenour wrote:There appears to be a leak at the header connection to the head. Do you know the torque setting for the nuts that hold the exhaust to the head? I do not want to overtighten.
My book is in the garage but I bet it’s around 15flb.
Did you replace the gasket when you put your new pipe on? It is a collapsible brass or copper ring.
It is not uncommon to retighten them after the first few rides.
Posted: Thu Sep 20, 2007 7:57 pm
by jtcohenour
Yes I did replace the gasket when I installed the new pipe. It was a brass ring. I have only ridden the bike maybe 6 times since isntalling the pipe. I just wanted to make sure I wasn't overtightening. 15lbs you say?