Ivans carburettor performance products

[kev]

hi every one i have been thinking of fitting one of Ivans (SO) carburettor kit any one got any experience of fitting them and how did your bike ride after the kit was fitted thanks for your help
          Kev [size=78%] [/size]

[Kosmic Kartman]

See here: http://www.cartestsoftware.com/fz1/jetki...ation.html

[Falcon 269]

I have some experience of fitting them and if you're after a jet kit for the Gen 1, they're your best option.  Does everything is promises to do and delivers what you see on Ivan's website dyno charts.

Some aspects of the installation process aren't for the mechanically inexperienced but if you're a competent DIY spannerman and can follow instructions accurately, you'll have no problems fitting either of Ivan's kits.

[eddie]

or just wait for a  a certain Falcon to fly into the UK with a bit of kit and tools to match

[Falcon 269]

I plan to be over in April next year but if Kev or anyone else wants to go the DIY route over the winter, I'm always happy to offer any advice I can by e-mail or phone.

[VNA]

I have some experience of fitting them

:lol

Some?  Pity you never kept a count of how many you have fitted Mike.  Must be quite some number and account for a sizeable % of the Gen1 thous on the road in the UK.

You must be due an award from Ivan himself for the number of kits you have fitted.

Anyway Kev, yes loads of folks here have Ivan's kits fitted, and most had it done by Mike.  Mines got the slip on kit fitted.    Bike is smoother, more torque  low down, more bhp up the rev range, but best of all much reduced secondary vibs and no more nasty surging when running in 5th or 6th through towns at 30mph.  If anything better mpg (very slightly) as you run through towns in 6th instead of changing down to 4th.

Also worth checking to see if you bike has already been Ivanised, there's must be 100's and 100's of Ivanised Fazer thous out there.

Oh and if you don't fancy doing it yourself Mike does a top job.  Recommended.

[budgiemurray]

Is there a way to tell without pulling the bike to bits per chance...

Budgie

sent from somewhere beyond the rim.

[Falcon 269]

Is there a way to tell without pulling the bike to bits per chance...

Budgie

sent from somewhere beyond the rim.

Yes.  Take the top off one of the carbs and remove the slide.  Then take out the needle and see what you've got.  If it has SD-130 or SD-129 stamped around the top, it's a stock needle.  If it has visibly different taper angles along its length, it's most likely one of Ivan's. 

Also, clipping the slide spring is part of the installation but anyone can do that so it's not a guarantee that you have Ivan's Inside.

[kev]

how do i get hold of mike the man who fit Ivans carb kits whats his web address and where does he live

[dickturpin]

look at the post above yours! 'Falcon269' is here to help us all!

[budgiemurray]

forgot to say thanks to falcon 269 for the details on spotting an ivanised bike..

While Im no too bad at working on some bits of the bike Im no that keen or brave to start stipping carbs just yet.. bikes away for the winter now (started snowing here today and the roads are caked in salt) so guess Im gonna wait till the spring to check.. tempted to get it done if it improves the economy.. every mpg helps nowadays..

Budgie

[PieEater]

The Ivans kit doesn't improve fuel economy and fitting it for that sole purpose would be a mistake. If you read the information about the kit on Ivans site you will see that he clearly states that Yamaha compromised on performance for reasons of fuel economy (and emissions) and his kit is purely designed around performance without these constraints.

As VNA comments the kit does enable you to potter around at low revs as the fuelling has been improved enabling the bike to be more usable across the range, and the enevitable result of using less revs is less fuel consumption (I can get 55MPG if I try hard). However this is a performance product designed to extract the full potential of the engine at all revs and riding around at 4k everywhere greatly misses the point. An Ivanised engine whilst happy at low revs does encourage you to explore the upper reaches of the rev range an experience which is usually rewarded with a huge dollop of arenaline and a fat grin, something that you will want to repeat again and again, until your fuel light comes on after 120 miles and you're reminded that nothing this good comes without a price. I must admit that as finances get tighter and the opportunities to fill the bike up get fewer I do sometimes question whether having the bike ivanised was the right decision as I've personally seen about a 10% drop in fuel economy on like-for-like riding, but then I wind the throttle back, pupils start to dilate, the smile becomes a grin and I know .......................

[VNA]

tempted to get it done if it improves the economy.. every mpg helps nowadays..

I pretty much agree with pieeater.

In normal riding there will be no real change.

If you like to thrash your bike all the time it'll will use more fuel than a standard non-ivanised bike.

If you are commuting and short shifting, staying in 6th through towns etc, you'll probably see a small improvement.  Pre-Ivanisation I couldn't ride the bike at 30mph in 6th, I had to drop to4th.

Post Ivansiation, you have better low down torque, flat spots are smoothed out, reduced secondary vibes and more power up top.

I'd strongly recommend it, very good value for money, and it's only going to hurt your fuel bill if you thrash it up and down the box all the time.  I suspect most folks won't notice any difference in fuel consumption.

Again if you don't fancy fiddling with the carbs give Mike a shout (Falcon 269) and see if you can sort something out.  He does a top job.

[Falcon 269]

Very true about fuel economy.  Results may vary.  Grins guaranteed, though.

Old photo, BTW.  I now have one less chin and much less hair ... :lol

[budgiemurray]

All good advice and information guys, its appreciated  :thumbup  Ill keep that in mind..

No had the bike long enough to give it a real good thrashing yet with the exception of just short of triple figure cruising (with ease)..

lest see what next spring brings..  :b

Budgie

[VNA]

Time flies eh?

Bet you've still got that disgusting tan though!

[Falcon 269]

Beats going rusty ... :lol