Ivans Jet Kit

[Falcon 269]

The mechanics of fitting either of Ivan's kits to the carbs are identical. 

What sets the Full Monty apart is modifications to the intake stubs between carbs and cylinder head, and alterations to the airbox lid to work best with a K&N filter.

[solorider]

The mechanics of fitting either of Ivan's kits to the carbs are identical. 

What sets the Full Monty apart is modifications to the intake stubs between carbs and cylinder head, and alterations to the airbox lid to work best with a K&N filter.

what is done to the inlet stubs to modify them?

[Falcon 269]

Description and photos here:  http://www.yamahafz1oa.com/forum/showthr...+boot+mods

[Smokinjoe]

Having just given mine the full monty I would definitely recommend it  :woot :thumbup

[silverfz]

http://smg.photobucket.com/albums/v662/s...t=dyno.jpg

[bwizz]

My own experience is that , The jet kit is essential to get a thou running right with an after market can fitted!But my bike was running smoothly before the mod and apart from the better starting I would not have bothered .The fuel consumption has increased slightly and the power delivery is more aggressive ,probably good for a younger owners
but I don't like it. The kit is expensive by any standards.
thats my two penneth, sure to upset everyone !

[dekker555]

Sorry, I can't agree that it's expensive to get a bike running a whole lot better. Mine is an '04 bike that had just over 6,000 miles on it at the time of conversion, and I only had the "slip-on" version as I still run the standard can, and am delighted with the improvement. I DON'T ride this way, but it will pull 20 mph in 6th gear without ANY complaint.

[mcyoungy]

Mine runs fine with an aftermarket can without the jet kit. I'm looking forward to a bit more oomph with it fitted though.

[bwizz]

The term a whole lot better is subjective!( As is expensive). Mine was smooth vibration free and progressive. That was good for me!

When I fiitted an after market can "before mod" it killed the mid range ! .Certainly more power when Ivanised . If that's your requirement go for it . you pays yer money Etc !

Just as an after thought , I don't see why you could not do a  cheepo carb mod , ie the drilling and clip carb springs, float levels, air box , carb rubbers, richen mixture ,but leave the needles and jets alone, the first part I would think would ensure a quicker take off, I'm sure someone will say it a bad idea . But has it been done that way?

[bigbluebear]

I have joined the ranks as I am now Ivanised with 135BHP at the back wheel....awesome improvement.......just need some decent weather to do some full testing

[macmivvi]

Why didnt you just refit the standard can if it was running smoothly. If you consider the jet kit expensive  against your mod that killed the midrange,the aftermarket can, it must be a really cheap crap can.

I would not describe the power delivery as more aggressive, rather fuller and more linear without the dips through the midrange when standard. Not sure whats not to like. :\

[bwizz]

The can I fitted was a quill t3 ! It killed the midrange on the thou , Just as the viper can did the same on the 600. The standard can weighs a ton and looks and sounds crap.
I did the ivan mod ,because i read all the hype and "old adage "it seemed a good  idea at the time!

[GrahamB]

Think I know where you're coming from bwizz. My bike lost a bit of grunt at very low revs with the Ivans kit fitted. Top end power is the obvious improvement & it is easier to start now. Think I might have been better off with the slip on kit for my bike as I did enjoy the low down pull. 

[MadDogMcQ]

140 at the back wheel? Great result SilverFZ!

[Captain Haddock]

Hi Guys
Just bought a 1000 thats stood and has a bit of a misfire, I'm guessing stale fuel and a bit of crud in the carbs, if I'm taking the carbs off I may as well ivanise them at the same time but will have the standard can on for a while, any issues with this setup?
I will probably go full monty rather than SO kit, can will be changed eventually.