jamiejbooth Posted January 26, 2018 Share Posted January 26, 2018 Hi all,I have a 2007 CBR600F6 and it has recently stopped fast idling on start up. Generally it’ll go up to around 3k until warm and then gradually come down (you know the score). But this week it has struggled to start a couple of times and doesn’t rev up as it should.Temp gauge still responds as it should and fan kicks in at the required temp. It’s just the idle that’s the issue.I slid the bike (RH side) in crappy weather earlier in the week and I noticed it the day after.Where should I be checking? I’ve read that the coolant could be related?Thanks in advance.JamieSent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
Stu Posted January 26, 2018 Share Posted January 26, 2018 Hi and welcome to the forumI'm not sure how the cold start circuit works but some work off the coolant circuit and if the coolant level drops the choke stops workingSo I would check your coolant level Quote Link to comment Share on other sites More sharing options...
MR_W Posted January 26, 2018 Share Posted January 26, 2018 Aren't idle screws normally on the right? Possible the slide did something to that and it's knocked the idle level too low if your coolant is fine. Quote Link to comment Share on other sites More sharing options...
Westbeef Posted January 26, 2018 Share Posted January 26, 2018 Wax Idle Unit might need adjusting:http://canberrariders.org.au/index.php?threads/cbr600f4i-adjust-fast-idle-wax-unit.142445/ Quote Link to comment Share on other sites More sharing options...
Westbeef Posted January 26, 2018 Share Posted January 26, 2018 Aren't idle screws normally on the right? Possible the slide did something to that and it's knocked the idle level too low if your coolant is fine. On the left for an F4i Quote Link to comment Share on other sites More sharing options...
fastbob Posted January 26, 2018 Share Posted January 26, 2018 This has an automatic choke I presume ? I'm guessing a sensor has been knocked off by the crash . I'll have a look at some parts diagrams and let you know where it is . I don't think its low coolant because that would probably have the opposite effect. Quote Link to comment Share on other sites More sharing options...
Stu Posted January 26, 2018 Share Posted January 26, 2018 I don't think its low coolant because that would probably have the opposite effect. It doesn't trust me mine runs off the coolant circuit and is prone to an air lock at coolant change if you don't get it out you have no choke! Quote Link to comment Share on other sites More sharing options...
fastbob Posted January 26, 2018 Share Posted January 26, 2018 I don't think its low coolant because that would probably have the opposite effect. It doesn't trust me mine runs off the coolant circuit and is prone to an air lock at coolant change if you don't get it out you have no choke! OK I'll go with that , I was only surmising anyway. I've found the temperature sensor on a parts fiche but it doesn't actually show where it goes. Its somewhere near the thermostat. Part 14http://i.imgur.com/VO1Cofi.pngmind you maybe that's what controls the fan . Perhaps I should have left this one to the CBR owners. I'll get me coat Quote Link to comment Share on other sites More sharing options...
Stu Posted January 26, 2018 Share Posted January 26, 2018 I don't think its low coolant because that would probably have the opposite effect. It doesn't trust me mine runs off the coolant circuit and is prone to an air lock at coolant change if you don't get it out you have no choke! OK I'll go with that , I was only surmising anyway. I've found the temperature sensor on a parts fiche but it doesn't actually show where it goes. Its somewhere near the thermostat. Part 14 It won't work off the temp sensor as [mention]Westbeef[/mention] says above its a wax idle which basically means its like a thermostat in that when the coolant warms it up it opens up which removes the choke same system here https://www.youtube.com/watch?v=k4oVVbzTvVo Quote Link to comment Share on other sites More sharing options...
fastbob Posted January 26, 2018 Share Posted January 26, 2018 Righto, glad I've got manual chokes on both bikes ! Quote Link to comment Share on other sites More sharing options...
Stu Posted January 26, 2018 Share Posted January 26, 2018 Righto, glad I've got manual chokes on both bikes ! To be honest mine works faultlessly except when you do a coolant change Quote Link to comment Share on other sites More sharing options...
jamiejbooth Posted January 26, 2018 Author Share Posted January 26, 2018 Awesome... thanks for the advice. I’ll check the coolant level in the morning.Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
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