I bought a R100 GS - Paris Dakar (1994) 2 months ago Runs good. - Am real happy However - just laterly: when cold it has become hard to start. Ambient temperature around 10 - 18 degrees Celsius. I giver her choke NO throttle - she turns over - immediately sounds as if it wants to start - firing (has spark). but does not start. I churn that crank - electric start over and over. I cannot help myself "tweaking the throttle" just a touch. Eventually she fires up on one cylinder : rattles and rolls this way for 2/3 seconds + then the other cylinder kicks in - = away she goes Sweet As! Never any trouble to start when warm / hot. Unsure if it be the same cylinder she starts on. I found on the forum : http://www.largiader.com/tech/carbs/ " ...starting routine consists of three crucial steps. I open the fuel petcocks I turn the choke. I push the starter button. The engine starts immediately and as it starts to speed up I reduce the choke*, or I ride off and turn it off after a half mile. Actually there was really a Step Zero that is more important than these: I cleaned the carbs. And when I say "cleaned" I don't mean that I sprayed some GumOut into the carb intakes; I really cleaned them. I used my Really Nasty Cleaning Stuff and made sure that every trace of fuel residue or corrosion was gone and that the carbs were truly in new condition. Clean carbs won't solve all problems worldwide, but they go a long way towards making the bikes run well. Hmmm any suggestion(s) I did give her new sparking plugs. Ought I "clean the carbs?" . thnx .