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+--- Thread: fitting ivan kit. help pls (/showthread.php?tid=62417)
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fitting ivan kit. help pls - FuZzBoM - 17-03-13
Hi all I have got the kit on but I am a tad confused with the float height adjustment. I have measured at many angles but do not seem to get the default height value. Is it a case of having the carb propped at the correct angle? I have looked over as many guides as I can find but still none the wiser.
any help would be very appreciated.
Re: fitting ivan kit. help pls - AyJay - 17-03-13
Finally found the video on installing Ivan's jet kit. It includes adjusting the float bowls.
It's not a great video but it you can pause it and see what's going on. The key thing is the angle at which he's holding the bank of carbs. If you get the angle right, as you gently rotate the carbs the floats move, then stop, then move again. It's in that mid position that you need to make the measurement - not full in, not full out.
Bending the little copper tang is also fiddly, but doable. Good luck!
Re: fitting ivan kit. help pls - FuZzBoM - 17-03-13
Fancy sharing it or are you just teasing me lol?
Re: fitting ivan kit. help pls - JKay - 17-03-13
http://www.cartestsoftware.com/fz1/jetkitinstallation.html and http://foc-u.co.uk/index.php?topic=74.0 enough reading there to keep you going :evil
Re: fitting ivan kit. help pls - AyJay - 17-03-13
(17-03-13, 03:42 PM)FuZzBoM link Wrote: Fancy sharing it or are you just teasing me lol?
Sorry. I'm a complete bell end
RavenRider Jet Kit for Gen 1 Yamaha FZ1 - Video
Re: fitting ivan kit. help pls - FuZzBoM - 17-03-13
(17-03-13, 04:30 PM)JKay link Wrote: http://www.cartestsoftware.com/fz1/jetkitinstallation.html and http://foc-u.co.uk/index.php?topic=74.0 enough reading there to keep you going :evil
Thanks for the links but these have already been looked over multiple times.. I have both printed out and in the garage with me.
Re: fitting ivan kit. help pls - FuZzBoM - 17-03-13
(17-03-13, 04:43 PM)AyJay link Wrote: [quote author=FuZzBoM link=topic=6791.msg63928#msg63928 date=1363531354]
Fancy sharing it or are you just teasing me lol?
Sorry. I'm a complete bell end
RavenRider Jet Kit for Gen 1 Yamaha FZ1 - Video
[/quote]
Not at all, we are only human. this is the reason I want to be totally sure before I go about screwing my carbs up lol.
Re: fitting ivan kit. help pls - DekF - 17-03-13
It's posts like this that exemplifies why Mike is the ' maestro'
Fear not he'll be along soon
Re: fitting ivan kit. help pls - Falcon 269 - 18-03-13
Ayjay described perfectly in post #2. Move, stop, move again ... it's the stopped position that you measure and adjust from.
Re: fitting ivan kit. help pls - FuZzBoM - 19-03-13
Thanks for all the replies guys but I am still not 100%. I am starting to wonder if I am just over complicating the whole thing. It seems to me its not exactly a precise thing lol. For a start one side if the float looks to sit higher than the other when you measure.. bike has only done 7k and everything inside it is gleaming but there is a fair amount of play on all floats..
I will have another look tomorrow. Just getting a bit peeved with it now.
Re: fitting ivan kit. help pls - AyJay - 19-03-13
(19-03-13, 01:35 AM)FuZzBoM link Wrote: Thanks for all the replies guys but I am still not 100%. I am starting to wonder if I am just over complicating the whole thing. It seems to me its not exactly a precise thing lol. For a start one side if the float looks to sit higher than the other when you measure.. bike has only done 7k and everything inside it is gleaming but there is a fair amount of play on all floats..Yup, they're pretty wobbly, but you're not adjusting valves where you have to be 0.01mm precise. A steel ruler will do. Have you found the point where they stop moving as you gently rotate the bank of carbs and managed to get a measurement at all?
I will have another look tomorrow. Just getting a bit peeved with it now.
It's tricky holding them and rotating and measuring all at the same time and I found that as I rotated the bank of carbs, there was a lot of wobbling but they did settle in that mid position. Just gently rotated them so they are just moving and then they kind of lurch to the mid position, stop and then lurch again.
I can't remember which side I took the measurement, I just started at one end. I think it was the nearside...
Re: fitting ivan kit. help pls - FuZzBoM - 19-03-13
I will confess I am a bit of a perfectionist and have been measuring with a vernier caliper.. see this is the thing with the base measurement, mine seems to rest higher than 12.5mm. but i know what you guys will say that i am measuring wrongly. for me to get the 12.5mm the carbs are near enough flat on their heads??
I have done a very tiny adjustment to them and think i will leave it at that.. unless there is anyone in the Milton Keynes area that knows what they are looking for and fancies a visit from a fellow foccer? :lol
Re: fitting ivan kit. help pls - AyJay - 19-03-13
Should have asked where you are - I'm over near Bedford....
I think on mine, they were around 12.5mm. Manufacturing tolerances could mean a millimetre difference, I would have thought.
Re: fitting ivan kit. help pls - Falcon 269 - 20-03-13
(19-03-13, 09:58 PM)FuZzBoM link Wrote: I will confess I am a bit of a perfectionist and have been measuring with a vernier caliper.. see this is the thing with the base measurement, mine seems to rest higher than 12.5mm. but i know what you guys will say that i am measuring wrongly. for me to get the 12.5mm the carbs are near enough flat on their heads??
I have done a very tiny adjustment to them and think i will leave it at that.. unless there is anyone in the Milton Keynes area that knows what they are looking for and fancies a visit from a fellow foccer? :lol
Go back to Pat's Site (link above) and see the Addendum II. Note that I don't put the carbs on the bench to measure the float height, so 'flat on their heads' is a clue that maybe you're doing it differently and that's why you're not getting accurate readings.
Obviously I place the carbs down flat to make the small adjustments to the float tangs but the key for me is to pivot them on one end - as in the photos - to check the move-stop-move again sequence.
Between 13.5 - 14mm is the target level; ideally, you want them all the same height. Mikuni's manufacturing tolerances are excellent, BTW ... in over 1000 floats I've checked, I've only ever found one that was not exactly at 12.5mm.
Re: fitting ivan kit. help pls - FuZzBoM - 20-03-13
Well I am not working tonight so I will take a look (armed with my new steel ruler :lol )
Also have a can of carb cleaner. I was just winding the Mrs up asking if it was ok if I clean them in the house haha
I do find it interesting that the top edge is measured in the picture whilst the carbs are on their end. would that not sit differently due to the play in them? Maybe my mind thinks tolerances should be tight on everything mechanical lol
Re: fitting ivan kit. help pls - Falcon 269 - 20-03-13
Yes, top edge - it's just a notional point to take the measurement.
Some floats can be slightly twisted so that one side is a fraction higher than the other. Just gently twist between thumb and forefinger to re-align them.
Be careful with that carb cleaner ... don't get it on the carb diaphragms.
Re: fitting ivan kit. help pls - AyJay - 21-03-13
(20-03-13, 07:36 PM)Falcon 269 link Wrote: BTW ... in over 1000 floats I've checked, I've only ever found one that was not exactly at 12.5mm.Blimey. That's quite something.
And what's more impressive is you've taken over a thousand banks of carbs out of Fazers. I can't think of much that makes me more depressed than the thought of taking the carbs out and putting them back in again. Bien cocido!
Re: fitting ivan kit. help pls - Falcon 269 - 21-03-13
Actually, it's more than 2000 floats now that I think of it ... but that's only 500 banks of carbs, 'cos there's 4 floats in each.
As for removing/refitting the carbs, my record is 12 mins to remove a set from putting the bike on the centrestand (it was outside in the middle of Feb
) and 20 mins to refit, including the carb synch.I guess practice helps ... :lol
Re: fitting ivan kit. help pls - AyJay - 21-03-13
12 minutes? I cut myself to ribbons if I tried to do it that quick!
I remember there was a chap on the door assemblies line at Nissan who was just breath takingly dextrous. Never seen hands like it. 20 minutes to refit and sync a set of carbs is right up there with that guy if you ask me! Took me 2 hours to fit a throttle cable last year.
Can't wait to do the EXUP cables this weekend.. or not
Re: fitting ivan kit. help pls - FuZzBoM - 22-03-13
Quick update. you will all be glad to hear I had much better results with the ruler.
The carbs are now back in but i am just trying to remember what pipes etc. go where lol. I just wanted to ask about the throttle cable. it adjusts ok but the closing side of the cable seems a bit sack. is this normal? if not what is the best way to adjust it? thanks again