The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: cobra407 on March 07, 2012, 04:40:11 AM

Title: carb help
Post by: cobra407 on March 07, 2012, 04:40:11 AM

I rebuilt my carbs and somethings not right. It idles just fine but around 2000 rpms it runs rough. Sounds likes its missing. At full throttle it will eventually pull nicely.

Title: Re: carb help
Post by: Barry on March 07, 2012, 07:14:08 AM

Symptoms point to the midrange circuit i.e. the needle jet and needle. Any chance the needles could have been put back in a different slot than before ?  Counting which slot they are in as you remove them is not always reliable. I measure the exposed length of needle before and after to be sure.

Title: Re: carb help
Post by: donbmw on March 07, 2012, 11:27:14 AM

How did you clean the carbs, there still may be some curd in the passagaes. I have had the same thing happen. Using spary can carb cleaner doesnot always clean everything out. Soaking in cleaner in normaly the best.

Don

Title: Re: carb help
Post by: cobra407 on March 07, 2012, 06:22:30 PM

cleaned with boiling lemon juice. they do look pretty :)

i found one of the carbs is missing the atomizer. hopefully this is it. will order in the morning

Title: Re: carb help
Post by: montmil on March 07, 2012, 07:36:44 PM

Quote

... i found one of the carbs is missing the atomizer.

Urethra! That could do it. ;)