Cbr 1000f running rough on idle??? Pilot Jets
#1
Cbr 1000f running rough on idle??? Pilot Jets
Okey help needed , did a good clean of the carbs , back together but running rough . now I cleaned the pilot jets and main jets ...but when I put them back in I just tightened them up ... but since then is running rough ...do the Pilot jets have to be adjusted or just tightened home ??????
#2
Definitely not tightened home!
Usual setting is about 2.5 turns out....
see https://cbrforum.com/forum/cbr-1000f...lt-but-141039/
Make sure your vacuum rubbers are sealing and perhaps do a carb balance as well.
Here's a how to - it's for the 600 but the principle is the same. https://cbrforum.com/forum/f2-tech-9...g-101-a-96888/
Let us know how you go.
Cheers, SB
Usual setting is about 2.5 turns out....
see https://cbrforum.com/forum/cbr-1000f...lt-but-141039/
Make sure your vacuum rubbers are sealing and perhaps do a carb balance as well.
Here's a how to - it's for the 600 but the principle is the same. https://cbrforum.com/forum/f2-tech-9...g-101-a-96888/
Let us know how you go.
Cheers, SB
Last edited by Sebastionbear1; 08-15-2013 at 05:06 PM.
#3
Thanks for That .... when she is up and running she is like a bat out of hell , but when sitting there she lumpy ,, Pilots are for idle so I guess its a couple of turns to sort ..many thanks ...yet again good help from this form which is full of HONDA lovers
Last edited by Kenneth Foley; 08-16-2013 at 06:26 AM.
#5
#6
There's no blanking caps on US bikes
87-88 have slotted pilot air mixture screws
89-91 have slotted pilot air mixture screws
93-96 (US) have D socket pilot air mixture screws.
Pretty darn sure the Euro & everywhere else were the same
but that may or may not be the case
anyway - 2 1/2 out each air screw - recommend new orings
order of assembly for each screw is , screw , spring , washer & oring
then an accurate carb sync with a proper tool is a must
87-88 have slotted pilot air mixture screws
89-91 have slotted pilot air mixture screws
93-96 (US) have D socket pilot air mixture screws.
Pretty darn sure the Euro & everywhere else were the same
but that may or may not be the case
anyway - 2 1/2 out each air screw - recommend new orings
order of assembly for each screw is , screw , spring , washer & oring
then an accurate carb sync with a proper tool is a must
#7
Did you clean pilot screws and jets? Do you have trash in your tank? have you checked to see if the screens on the petcocks are intact? and how did you clean the pilot "jets"?
I ask because i have had to remove and clean mine over 6 times in the past 3 years. The jets are so small that almost any thing will clog them.
When I bought mine used tank had hand fulls of rust in it.
If i can help with specific questions, love to help, a sick feeling when it happens, lol
I ask because i have had to remove and clean mine over 6 times in the past 3 years. The jets are so small that almost any thing will clog them.
When I bought mine used tank had hand fulls of rust in it.
If i can help with specific questions, love to help, a sick feeling when it happens, lol
#8
Hi , Tank was flushed no rust , Petcocks was removed and cleaned as well all perfect , did not clean the Pilot screws but did removed the jets , put some carb cleaner in a jar , soaked over night , blew out next morning , put up to a light to check all Holes were clear ,,put the hole think back together , but its rough on Idle , if I up the tick over to above 1100 rpms she ticks over with no struggling ... when I stripped I never touched the Pilot screws , but when I put her back together she was lumpy ... so Jets again ....Air box leak ?