carb balance - Printable Version

carb balance - Printable Version

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+--- Thread: carb balance (/showthread.php?tid=70104)

carb balance - spyder - 27-08-14

Anyone know what size adapters I need for carb balancing? 5mm? And any ideas for accessing that no 3 mixture screw? V interesting problem...

Re: carb balance - darrsi - 27-08-14

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.

Re: carb balance - bandit - 27-08-14

https://www.youtube.com/watch?v=CYgN2-96Ik0 There you go. Smile

Re: carb balance - mickvp - 28-08-14

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.

Re: carb balance - darrsi - 28-08-14

http://foc-u.co.uk/index.php/topic,91.0.html

Re: carb balance - robin78842 - 28-08-14

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.

Re: carb balance - MC680x0 - 28-08-14

(28-08-14, 12:37 PM)robin78842 link Wrote: And any ideas for accessing that no 3 mixture screw? V interesting problem...

Re: carb balance - Punkstig - 28-08-14

Aldi were selling a set of long thin screwdrivers the other week- local store may have some left

Re: carb balance - MC680x0 - 28-08-14

(28-08-14, 02:26 PM)Punkstig link Wrote:Aldi were selling a set of long thin screwdrivers the other week- local store may have some left

what did they taste like

Re: carb balance - spyder - 28-08-14

(28-08-14, 12:48 PM)MC680x0 link Wrote:[quote author=robin78842 link=topic=14504.msg164205#msg164205 date=1409225820]
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

Gets into the screw's easy
[/quote]

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.

Re: carb balance - red98 - 28-08-14

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 ?

Re: carb balance - Exupnut - 28-08-14

(28-08-14, 03:43 PM)MC680x0 link Wrote:[quote author=Punkstig link=topic=14504.msg164208#msg164208 date=1409232378]
Aldi were selling a set of long thin screwdrivers the other week- local store may have some left

what did they taste like
[/quote]

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

Re: carb balance - spyder - 28-08-14

(28-08-14, 06:48 PM)red98 link Wrote: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 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

Re: carb balance - spyder - 28-08-14

Or this : https://www.google.co.uk/#q=carb+angle+driver

Re: carb balance - red98 - 28-08-14

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

Re: carb balance - red98 - 28-08-14

(28-08-14, 07:22 PM)Exupnut link Wrote:[quote author=MC680x0 link=topic=14504.msg164211#msg164211 date=1409237026]
[quote author=Punkstig link=topic=14504.msg164208#msg164208 date=1409232378]
Aldi were selling a set of long thin screwdrivers the other week- local store may have some left

what did they taste like
[/quote]

Hehehe....Genius....dont think i forgot Mr Red...
[/quote]

mr red not forgotten, i've got a good memory mr black..... :lol

Re: carb balance - midden - 29-08-14

Is there a specific reason why the tps has to be unplugged and reset when balancing carbs?

Re: carb balance - darrsi - 29-08-14

(29-08-14, 12:20 AM)midden link Wrote: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

Re: carb balance - midden - 29-08-14

so it has been explained before then. I did quickly scan the threads but didn't find an answer

Re: carb balance - darrsi - 29-08-14

(29-08-14, 08:57 AM)midden link Wrote: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....."