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Honda CBF 600N Choke PROBLEMS 57plate


Guest PBrookes93
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Hi, I've recently brought a 2nd hand Honda cbf 600 & I've read the owners manual & the bike appears to be starting with the choke fully closed everytime. Everytime I pull the choke out it either cuts out or won't start.. :S Im used to fuel injection & according to the manual I'm doing everything correctly. Oddly enough it's starting first time every time with the choke in, has a previous owner switched things around or something? :S Does the CBF have some kind of automatic cut out of you try to use the choke when the bikes too warm?


PS: I live in the midlands so it definitely shouldn't warm enough to be starting with the choke in I would have thought.


Thanks :)

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Are you letting it warm up enough before you are pulling the choke off??...are you easing the choke off as its warming up?


My Suzi 500 used to take a good 5 mins to warm up before I could release the choke fully...


Also has it been stood for long before you bought it as the jets could need cleaning out...

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Acting I think you read that wrong ;-)


It could just be that it is too warm and it doesn't need choke or a bike that doesn't need choke either


I really can't see the cable been the wrong way

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No what I mean is, is starting with the choke in :D Accortimg the the manual it should be pull out for a cold start. It's cutting off when I pull it out.. :S It's just been serviced, I'm just struggling to see how it's starting with the choke lever pushed in all the time & cutting out when it's pulled out. If I gradually pull it out once it's started it'll rev up from 1k to 2k then hit a point & cut out... :S It's either the manuals wrong or I am as far as I can tell :L

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the manual is right


it sounds to me like the choke is killing it at a certain point which will happen in this weather


the choke is working fine if the revs are rising


you probably just need to get used to it and not pull it all the way out and just a little bit :wink:

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Yeah.....maybe it doesn't need any choke at this time of the year.......or maybe the air filter is choked and it's running rich anyway......and adding choke to it just floods the engine..... :wink:

It is injected isn't it?.......would have thought a 2007/2008 bike would be......if so I'm suprised it has a manual choke?..... :)

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It is injected isn't it?.......would have thought a 2007/2008 bike would be......if so I'm suprised it has a manual choke?..... :)

 

I was thinking exactly the same Bob :|

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according to google your bike is fuel injected, sounds like you are playing with a fuel enrichener used in really cold weather. Will leave it to the cleverer people to praise or ridicule me now :D

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No way?! The said to the guy I brought it off "is it not injected?" He told me it wasn't & I assumed after how many years of owning he'd be correctly informed & have no reason to lie :L My only other injected bike used to buzz for a few seconds after turning the ignition & I was told that was the injection setting it's self up or adjusting which this bike doesnt.


But now raises the question why does the owners manual say that it does have a manual choke? :S


I do love my motorbikes but I'm a complete novice when it comes to the mechanics of them so thanks for the help haha.

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the buzzing is the fuel pump priming


it could well be that yours is carbed


its easy to check if you know what a carb looks like :)

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It should have carbs and a choke, the change over was late 2007 early 2008 to the injected 600 engine.


As said previously the choke shouldn't be needed that much this time of year, from what you've said I'd say it was fine just might need a little tinkering towards winter but I doubt it.


C

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if this is the same as yours its a pc38 model which is carbed :)


they ran 2004 to 2007


although there is not a lot of difference between the models!


http://upload.wikimedia.org/wikipedia/en/2/23/Cbf_600_n_for_wiki.JPG

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Well.....we live and learn...... 8-) I thought most bikes from the mid 2000's were injected to meet the emission regs......my 2003 Speed 4 and my 2005 Sprint and Speed Triple were all injected..... :wink:

Anyway mate.....hopefully your question has been answered.......it don't need any choke this time of year...... 8-)

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My vast expanse of mechanical knowledge (Google images) ;-)

Tells me that it is, or as far as I can tell, certainly looks like it has a carb...


When I start it with the choke in, it's idling around 1k rpm & it doesn't really rise much, so is that good to ride then during these warmish summer months, no real warm up time at the moment?


& yep, picture is definitely the model I've purchased

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My vast expanse of mechanical knowledge (Google images) ;-)

Tells me that it is, or as far as I can tell, certainly looks like it has a carb...


When I start it with the choke in, it's idling around 1k rpm & it doesn't really rise much, so is that good to ride then during these warmish summer months, no real warm up time at the moment?


& yep, picture is definitely the model I've purchased

I'd always give it a minute to warm up before riding off......you don't want it stuttering or bogging down as you lean into your first corner...... :wink:

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get on and ride if you can is the best way


you get less engine wear and the bike will warm up properly too when ridden


just because the temp gauge says its warm it doesnt mean the oil is warm enough :wink: engine oil warms up faster when ridden/worked


If you can start the bike and it run with no choke without stalling and get on and ride for me that would be the way to go


not all bikes require choke and some are a lot worse then others


personally what I do is start bike ear plugs in helmet and gloves on adjust mirrors and go

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Aha, well I'm glad to now know everything's in good order!! Still slightly ashamed at how much of a noob I've been about all this but it's just my first real experience with a non-injected bike! :)


Thank you for all of your input & help! Very quickly resolved, much love. :)

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a lot of bikes will start quite happily with no choke when cold in this kind of weather and putting the choke on will only serve to make it run to rich and stop it running,dont worry about not using choke at the moment and you will find that it will soon not want to start as weather cools down later in the year

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when i was 17, the choke on my mini was my "super charger" lol.


As previously stated, you might not need full choke to start with. you will get used to how much choke you need to start your bike in varying weather conditions.

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