Road Star Forum	ForumThreaded ViewRules

Welcome, Guest Please Login or Register.    Lost Password?

Favoured: 0

TOPIC: Re:problem Forum Tools Post New Topic Show latest posts Rules

#331339 BenGlendon (User) Fresh Boarder Posts: 3 problem 1 Year, 5 Months ago   Good day all. I am a owner of a 03 roadstar. The problem I am having is when the outside temperature is less than 40 degrees ( in 30s) my bike will backfire and miss so bad it wants to quit especially when I crack the throttle. As the engine warms this does not change. The RPM will drop so low at idle the bike will quit. This only happens when the outside temperature is below 40. Above 40 degrees it runs like a top (all good). When I start out with the outside temperature in the 30s it will buck and snort but as the outside temperature (not engine temperature)gets warm the bike will purr like a kitten. Please help, do not want to be a fair weather rider.   Logged     Last Edit: 2011/01/10 22:35 By DocShadow.   The administrator has disabled public write access. #331343 greyphart (User) Platinum Boarder Posts: 4842 Re:problem 1 Year, 5 Months ago   Any changes made to it (re-jet, pipes, air box, etc. or still stock)? GP   Logged     The administrator has disabled public write access. #331345 huskerbob (User) Life is about monents that take your breath away Platinum Boarder Posts: 2186 Re:problem 1 Year, 5 Months ago   got me stumped got to be fuel mixture?or bad fuel you could try some seafoam but on the other hand if you wanted me to go out in 30 degree weather I be pissed to she just wants to stay in the shed where it warmer   Logged     Last Edit: 2010/12/24 19:07 By huskerbob.     The administrator has disabled public write access. #331347 ultrastar (User) Keep The Speedometer Side Up Platinum Boarder Posts: 2937 Re:problem 1 Year, 5 Months ago   I live in the Bay Area in CA and it hardly every gets down to 30 degs I didn't know LA got that cold and I have never heard of anyone here having to use seafoam here   Logged     Keep The Speedometer Side Up http://s366.photobucket.com/albums/oo105/ultrastar1/   The administrator has disabled public write access. #331358 Erbman02 (User) Platinum Boarder Posts: 3801 Re:problem 1 Year, 5 Months ago   try turning out the pilot screw by 1/2 turn. Gas does not vaporize in cold temps, so large droplets of gas will not combust, sound like you need more gas in the pilot ckt for more gas to vaporize. It could take as much as 10, 15 miles for the bike to reach proper engine temps. in those ambient temps. Keep in mind, the carb is breathing in cold air so it's keeping the temps low for quite some time, and the carb heater is small and will do only so much in those ambient temps as well.   Logged       The administrator has disabled public write access. #331360 silver_fox (User) I wanna ride! Platinum Boarder Posts: 1164 Re:problem 1 Year, 5 Months ago   I didn't know that L.A. got that cold that often. I remember when I lived in S.F.,You would be lucky if it got below 50º. Good luck with the bike.   Logged       The administrator has disabled public write access. #331362 Curt (Moderator) Never to old to ride! Moderator Posts: 12511 Re:problem 1 Year, 5 Months ago   Check your exhaust pipes for air leaks the colder it is the more metal shrinks and can cause air leaks. If there are no air leaks you may need to do what Erbman said and tweak the PMS. BTW Ben   Logged     My Site Black Ice is Shiny, Black Ice is Deadly, Ya Wanna Ride My BlackIce?   The administrator has disabled public write access. #331382 Jimtec (User) Senior Boarder Posts: 244 Re:problem 1 Year, 5 Months ago   You might want to check to make sure your carb heater is hooked up and working also. Jim   Logged     The administrator has disabled public write access.

Forum List Technical Corner Article Discussions

...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... -->