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Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: spyder on 27 August 2014, 09:40:03 pm

Title: carb balance
Post by: spyder on 27 August 2014, 09:40:03 pm
Anyone know what size adapters I need for carb balancing? 5mm? And any ideas for accessing that no 3 mixture screw? V interesting problem...



Title: Re: carb balance
Post by: darrsi on 27 August 2014, 10:14:14 pm
Is that the one that needs the long #2 screwdriver?
Do a search above, it's been covered in several posts on here before in detail.
Title: Re: carb balance
Post by: bandit on 27 August 2014, 10:22:56 pm
http://www.youtube.com/watch?v=CYgN2-96Ik0 (http://www.youtube.com/watch?v=CYgN2-96Ik0)   There you go. :)
Title: Re: carb balance
Post by: mickvp on 28 August 2014, 06:58:32 am
It just needs to be a long star screwdriver, with a thin shank (you can grind the shank down a bit if need be). For clearance.
Title: Re: carb balance
Post by: darrsi on 28 August 2014, 11:55:40 am
http://foc-u.co.uk/index.php/topic,91.0.html (http://foc-u.co.uk/index.php/topic,91.0.html)
Title: Re: carb balance
Post by: robin78842 on 28 August 2014, 12:37:00 pm
And any ideas for accessing that no 3 mixture screw? V interesting problem...


Try a pair of long nose pliers and turn an eighth at a time.
Title: Re: carb balance
Post by: tweetytek on 28 August 2014, 12:48:17 pm
And any ideas for accessing that no 3 mixture screw? V interesting problem...



Mixture screw? ... When balancing carbs? Possibly you mean the throttle linkage screws? I bought a driver from eBay great tool and just for the job http://www.ebay.co.uk/itm/111383642364?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT (http://www.ebay.co.uk/itm/111383642364?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT)

Gets into the screw's easy
Title: Re: carb balance
Post by: Punkstig on 28 August 2014, 02:26:18 pm
Aldi were selling a set of long thin screwdrivers the other week- local store may have some left
Title: Re: carb balance
Post by: tweetytek on 28 August 2014, 03:43:46 pm
Aldi were selling a set of long thin screwdrivers the other week- local store may have some left
what did they taste like
Title: Re: carb balance
Post by: spyder on 28 August 2014, 06:16:17 pm
And any ideas for accessing that no 3 mixture screw? V interesting problem...



Mixture screw? ... When balancing carbs? Possibly you mean the throttle linkage screws? I bought a driver from eBay great tool and just for the job [url]http://www.ebay.co.uk/itm/111383642364?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT[/url] ([url]http://www.ebay.co.uk/itm/111383642364?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT[/url])

Gets into the screw's easy


No. I did mean the mixture screw. I removed the carbs when the engine was running pretty badly, having been balanced by 2 bike shop.Removing the carbs  I found one mixture screw had completely fallen out! I replaced it, and set mixture screws to 2.25 turns out (they had been all over the place.) Instant improvement, almost perfect. Going to 2.5 turns on 3 screws made things deteriorate so now I want to reduce to 2 turns and that no 3 screw is v hard for my fat fingers to get at. I know Yam make a special tool but I wondered if anyone had any tips for getting round that.
Title: Re: carb balance
Post by: red98 on 28 August 2014, 06:48:33 pm
Tough one this...ive been looking for a sidewinder tool for a while now.its a racthet screwdriver with the usual changeable heads but with a right angle head and a small t bar on the end of the handle to operate the rachet....small and lightweight idea for this job.....otherwise, as you know its carbs off a small tweek and back on again, reapeted untill its "just right"....very time consuming....was'nt aware of the yam tool, do you know how much they are ?
Title: Re: carb balance
Post by: Exupnut on 28 August 2014, 07:22:45 pm

Aldi were selling a set of long thin screwdrivers the other week- local store may have some left
what did they taste like

Hehehe....Genius....dont think i forgot Mr Red...
Title: Re: carb balance
Post by: spyder on 28 August 2014, 08:44:58 pm
Tough one this...ive been looking for a sidewinder tool for a while now.its a racthet screwdriver with the usual changeable heads but with a right angle head and a small t bar on the end of the handle to operate the rachet....small and lightweight idea for this job.....otherwise, as you know its carbs off a small tweek and back on again, reapeted untill its "just right"....very time consuming....was'nt aware of the yam tool, do you know how much they are ?


I think this is it :      http://www.manualslib.com/manual/656701/Yamaha-Yzf-R6-99.html?page=17 (http://www.manualslib.com/manual/656701/Yamaha-Yzf-R6-99.html?page=17)    I know it says YZF but I believe it would be ok for other bikes too.   Part no 90890-03158 but it doesn't seem readily available, and it's expensive. I refuse to remove the carbs just to tweak 1 carb, I WILL cobble something together :eek
Title: Re: carb balance
Post by: spyder on 28 August 2014, 08:54:28 pm
 Or this :  https://www.google.co.uk/#q=carb+angle+driver (https://www.google.co.uk/#q=carb+angle+driver)
Title: Re: carb balance
Post by: red98 on 28 August 2014, 09:52:09 pm
Cant see that yam tool working.....I do like the sealey tool though.little bit expensive but a great time saver....might just look into this a bit more... :thumbup
Title: Re: carb balance
Post by: red98 on 28 August 2014, 09:55:51 pm

Aldi were selling a set of long thin screwdrivers the other week- local store may have some left
what did they taste like

Hehehe....Genius....dont think i forgot Mr Red...




mr red not forgotten, i've got a good memory mr black..... :lol
Title: Re: carb balance
Post by: midden on 29 August 2014, 12:20:52 am
Is there a specific reason why the tps has to be unplugged and reset when balancing carbs?
Title: Re: carb balance
Post by: darrsi on 29 August 2014, 05:41:05 am
Is there a specific reason why the tps has to be unplugged and reset when balancing carbs?


Damn, i was flicking through an old post yesterday and somebody wrote "You need to check the TPS after a carb balance because....." and i didn't read any further!  :rolleyes



Title: Re: carb balance
Post by: midden on 29 August 2014, 08:57:55 am
so it has been explained before then. I did quickly scan the threads but didn't find an answer
Title: Re: carb balance
Post by: darrsi on 29 August 2014, 11:21:54 am
so it has been explained before then. I did quickly scan the threads but didn't find an answer


".....When you balance the carbs you change the position of the flaps on carbs 1, 2 and 3 relative to 4 where the TPS is. So you can (depending on how much you adjust them) put the TPS out of adjustment. Hence the check....."