82 GS850GL cold start/fast idle after warm up

[crow]

bike has 9K, sat last 6 years, repl petcock w/new suzuki part, had carbs cleaned 3 times by one guy, then again by another guy, repl o rings at carb boots, new battery, hard to start cold, then revs up to around 3000 when you pull in clutch, tank has been cleaned and sealed, runs very strong when warm. Has stock carbs, stock pipes, someone installed k&n filter in stock air box

[Larry D]

Welcome.
Hard starting is a sure sign of a needed valve adjustment. See Cliff's site for the tutorial on adjusting 8 valve engines and alot of other great stuff.

http://members.dslextreme.com/users/bikecliff/

[BassCliff]

tings and Salutations!!

Hi Mr. crow,

Tight valve clearances can cause hard starting when cold. The fast idle could be a symptom of air intake leaks. All (OK, well, most), will be revealed in the paragraphs below.

Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", the Carb Rebuild Series, and the Stator Papers. Now let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff

[Nessism]

Most likely the intake boot O-rings are leaking leading to the high idle...