Date: 23-01-22  Time: 15:16 pm

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Messages - Falcon 269

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Fazer 1000/FZ1 corner / Re: Another little upgrade
« on: 04 December 2021, 05:22:25 pm »
Ooh, there's lovely, isn't it? :)

Money well spent!

Fazer 1000/FZ1 corner / Re: Throttle response with Ivan kit
« on: 08 October 2021, 01:42:20 pm »
I've fitted a few of these kits and sharp throttle response shouldn't be an issue.  What you get is smooth, linear power delivery from idle upwards, with no lean surge below 5k rpm or hesitancy on the throttle around 2 -3k rpm.

Assuming you've fitted the kit correctly, whereabouts in the rev range/throttle operation are you finding things not to your liking?

Fazer 1000/FZ1 corner / Re: Interesting custom Gen1
« on: 04 October 2021, 10:40:27 pm »
I might be wrong but I thought Luke sold that one on some years before he passed away.  Nice to see it's still in good condition and clearly been looked after if that's the case.

Those of us who've been around Fazers for a few decades ( :))  ) will recall how much of Luke's genius and commitment went into the creation of that bike, which went through quite a few evolutions before it finished up the way you see it now.

What a great way to be reminded of a really great bloke. :)

Fazer 1000/FZ1 corner / Re: Exup
« on: 15 June 2021, 07:39:28 am »
If the valve is seized in the bushes/housing, removing it might involve almost as much effort as getting it functioning again.  Finding a replacement pulley is much easier than finding an entire working EXUP.

It would be worth trying to get it working again.  Maybe remove valve temporarily, refit the end plate with a bolt/washer to blank the spindle hole and focus on getting the valve and bushes separated then refit when they're free-spinning as they should be.

Did you enlarge one or two bypass holes?

It's possible that you have slightly over-enlarged the holes, which is easily done.  I suggest you set mixture screws at 4 turns out, maybe less, to compensate. 

Good, you've replaced the main jets and by the look of it done the rest of the installation correctly.  Forgive me, but I had to ask. :)

If you're happy with the way the bike rides and the fuel consumption is OK, I suggest you don't waste time or mental energy on pulling the carbs again.  Trust Ivan.

If you installed it correctly, and your motor is in otherwise good condition with no exhaust, EXUP or ignition issues, those dyno numbers are probably incorrect.

Ivan spent a vast amount of time, effort and experience developing his kits.  You do not need to alter any of the jets or the needle installed height ... provided that you have fitted them correctly.

I assume you also modified the airbox lid properly, fitted a free-flow air filter and flowed the intake stubs.

What type of dyno was the operator using?  Also, the part-throttle pulls seem inconsistent between db killer in or out.

That said, the a/f ratio on the full throttle runs does indicate an overly-rich mixture in the mid-range area.  So, the question remains - do you trust the dyno and the operator, or do you trust the accuracy of your kit installation? 

FWIW, it is possible to confuse the main jets for the starter jets.  If you did this and fitted Ivan's smaller main jets in place of the starter jets, the original main jets (130/132.5) would be left in place and they are definitely not compatible with Ivan's needle profile.

Fazer 1000/FZ1 corner / Re: Rough running FZS1000
« on: 14 May 2021, 08:24:46 am »
Cam chain won't be worn at 46k.  I know of Gen 1s with 146k on the motor and still no cam chain wear. :)

I don't see mention of you changing the O-rings on the float valve needle seats.  That would be my first port of call for any low-speed rough-running issues, along with the pilot jets and their passageways.

Fazer 1000/FZ1 corner / Re: Twin Pipes For A Gen 1?
« on: 05 May 2021, 10:16:03 am »
A company called IXIL used to do a twin pipe system, I believe.  Probably not available now, though.

Fazer 1000/FZ1 corner / Re: Carburettor Question......
« on: 24 April 2021, 07:33:55 am »
The reason Ivan took the unusual step of enlarging the pilot circuit bypass holes was to allow more fuel to pass through them just off idle.  In his testing, he found that turning the mixture screws out as far as they would go (about 5.5 turns) wasn't enough to give him the richer a/f ratio he wanted ... the size and placement of the holes was the limiting factor.

To check if Fazer carbs have been 'Ivanized' simply remove any carb top and look at the slide spring.  If it has been cut at one end to shorten it, it will be obvious.  If you go on to remove the slide and inspect the needle, you'll find that Ivan's needles have changes in taper that are visible to the eye.  Stock needles are straight-edged along the whole length of the taper.  If you remove the needle from the slide, you'll find that stock needles have SD-130 or SD-129 stamped around the top.

Fazer 1000/FZ1 corner / Re: Carburettor Question......
« on: 23 April 2021, 06:34:56 am »
Set at 3 turns out to richen the mixture at idle and just off idle.  In fact, 3.5 to 4 turns is better still.

If it starts from cold with no choke, possible that it's been 'Ivanized'.

I assume you're saying very rich because you can smell fuel at idle.  You will.  However, once you crack the throttle, you'll be glad you have that little extra richness.  It's not excessive, either.

Fazer 1000/FZ1 corner / Re: Another Carb question!
« on: 27 March 2021, 04:33:38 pm »
Promising. :)

I've never used a voltmeter to set the TPS.  Just tweaked it until the tacho needle bounced between 5 - 10k.  :D

Fazer 1000/FZ1 corner / Re: Another Carb question!
« on: 23 March 2021, 04:34:33 pm »
Doing fine, Tim - thanks.  Moving back to the UK permanently in May. 

Let me know what you find. :)

Fazer 1000/FZ1 corner / Re: Another Carb question!
« on: 23 March 2021, 07:03:11 am »
I can think of no logical reason for two carbs on one side of the motor to be richer than the others, Tim.  It can't be coil-related because they're 1-4, 2-3.

I set mixture screws at 4 1/4 turns out usually but back when I started doing the Full Monty installs, I followed Ivan's instructions for 4 1/2 to 5 turns.  I found that a bit rich on my own bike and reduced accordingly.  That's why I asked for a timeframe on when I might have done your bike.  If you're going to check/adjust the mixture screws, go with 4 turns out.

I'm sure the needle spacers will be correct - unless someone else has been messing since I did the job, of course.

It sounds like you're particular with maintaining the K&N filter but is it possible you might have over-oiled it?  As you can tell, I'm reaching for ideas here. :)

Also, I wonder if the Delkevic with baffle in is restricting gas flow a touch.  Might cause a bit of back-up in the EXUP chamber or alter the scavenging characteristics of the exhaust. 

Do you have an ignition advancer fitted?  When did you last check your TPS setting?  Try it at 10k to advance the ignition and see if this perks up throttle response.

Sorry I can't direct you at a specific reason but this is the first time I've seen this mentioned.

Fazer 1000/FZ1 corner / Re: Carbs?
« on: 22 March 2021, 07:41:10 am »
Blocked pilot jets.  I'll put money on it. :)

The fuel is old, too, so that won't be helping.  Strip and clean the carbs, no need to change jets or settings. 

Also, while you have the carbs out, change the O-rings on the float needle valve seats.

Fazer 1000/FZ1 corner / Re: Another Carb question!
« on: 22 March 2021, 07:38:49 am »
Hi Tim,

Please remind me when I did your bike and what exhaust can you have.

Also, what sort of riding do you do?  Are you a 'surf the torque' guy or 'redline warrior'? ;)


Fazer 1000/FZ1 corner / Re: Nice little upgrade
« on: 20 March 2021, 09:34:01 pm »
I'm surprised no-one else has commented on the complete absence of oil, grease, dirt or other crap on any single component of the bike in those photos. 

Seriously, when was the last time you saw the underside of a Fazer look that clean unless it was sitting new on the showroom floor? :D

Fazer 1000/FZ1 corner / Re: Gen 1 top end rebuild
« on: 19 March 2021, 06:41:35 am »
So after a second set of 4xv cams again with no oil ways through cam, I’ve got a set of fzs1000 cams

So. Early r1 4xv cams 98-00 will not fit from my experience, which is counter to everything Ivan has recommended in the thread posted by falcon

Sorry but you misread my posts.

I linked you to a thread answering your question about fitting the R1 head gasket but there is no reference in that by Ivan or anyone else about using 4XV R1 cams.

I said from the outset that I wasn't sure about fitting 4XV cams to the Fazer 1000.  Unfortunately, you have learned the hard way that it isn't possible.

Hope the rest of the rebuild goes well. :)

Fazer 1000/FZ1 corner / Re: Won't start, with loud bang's
« on: 01 March 2021, 08:27:57 am »
My first checks would be (after the earth connections) the ignition switch and the Run/Stop switch.  Flush the ignition switch with contact cleaner.  Check all the wiring running to both switches, looking for signs of failure.

The bang is unburnt fuel in the exhaust suddenly igniting as the sparks come to life.  I don't think it's fuel-related.

Fazer 1000/FZ1 corner / Re: Gen 1 top end rebuild
« on: 24 February 2021, 03:21:38 pm »
I knew I remembered something Ivan posted about this on the US FZ1OA forum years ago:

07-31-2012, 01:20 AM
Using the R1 race gasket will give a compression ratio around 13.3-1.... this will still run well on 93 octane pump gas.

The FZ-1 stock gasket is appx .032" thick and the R1 race gasket is .020".

Using the R1 stock gasket will give 12.4-1 compression...

Lowering the head (using a thinner gasket or milling) will cause the cams to need to be re-degreed due to adding more slack in the cam chain.... the FZ-1 has slotted sprockets, so no need to buy a set.

This is the easiest way to increase compression... for the rpm range that this engine runs, the added compression will not cause the powerband to end early.

Using the gasket and setting the cams to 107in/101ex will give great results... using 105in/100ex will give better midrange at the expense of some top end.

Stock cam timing is 105/105...

105 on the exhaust doesn't really add any top end as compared to 100ex, but costs some midrange.... this is another area that this engine is detuned.

The good power cam timing window for 5 valve Yamahas is pretty narrow...

Increasing compression will give more power across the entire rpm range, but in order to make the most increase across the range, an ignition module becomes necessary as well as re-degreeing the cams.

A Yosh full system is a necessity as well due to the need for the longer header tubes to make the midrange.

Might as well clean all the valves and replace all the valve seals while you are in there.


Original thread here:

If you join that site and do a search using 'R1 head gasket' as the search words, you will find quite a few performance-related threads which should answer your question.

Fazer 1000/FZ1 corner / Re: Gen 1 top end rebuild
« on: 24 February 2021, 03:05:37 pm »
IIRC, if you fit an R1 head gasket you can gain benefits by tweaking the valve timing slightly.

Not sure about the 4XV cams but I bet there's something on't t'internet about it somewhere. :)

Fazer 1000/FZ1 corner / Re: Fitting Ivan`s jet kit
« on: 21 January 2021, 08:35:38 am »
I know for sure that there's no jet kit installed. I've cleaned the carb's and everything looked original. I also live in the Netherlands and as far as i know there aint many ivanized fazers over here. I'm not affraid to work on the carb's or engine and i actually like to take things apart. I will order the mb kit and with all the instructions on this forum i guess it will all be alright. Thank's for the reactions and Mike, if i mess things up may i ask for your help?

OK, good to know what you're dealing with.  Yes, MB kit definitely the way to go since you already have the air filter and less restrictive end can.

Just PM me if you need any assistance.  And don't stress about removing the carbs - it's actually quite easy.  The trick is to make sure you have sufficient clearance between the back of the carbs and the airbox stubs.  You get this by pulling the EXUP cables out from between the airbox and the frame.  There's a few other tips that are covered in the stuff you've probably found online already.  Good luck. :)

Fazer 1000/FZ1 corner / Re: Fitting Ivan`s jet kit
« on: 20 January 2021, 08:34:57 am »
Good evening, i'm planning on ivanising my 03 fazer, can  anyone tell me witch one i should get. My bike has a pipercross airfilter and an leovince sbk slip-on exhaust. Do i need the slip on kit or is the mb kit also possible.

Are you confident the bike hasn't already been fitted with one of Ivan's kits?

I fitted several hundred to bikes owned by members of this forum over the years and I typically used Pipercross air filters in the process.  Based on the number of Gen 1 Fazers sold in the UK, there's a one in seven chance that I may have worked on your bike.

Simple ways to check include removing a carb top and inspecting the slide spring - if it's been cut and folded at one end, that's a solid indication the carbs have been worked on.

You could also remove the air filter lid and see if that has been modified, too.

As for 'is it worth it?', I think you would have several hundred very positive 'yes' responses if you could contact the owners of all the bikes I modified for them. :)

Fazer 1000/FZ1 corner / Re: Fitting Ivan`s jet kit
« on: 07 December 2020, 09:36:46 am »
Simple. :)

Turn the screws in fully until they just seat, then back them out 4 & 1/4 turns. 

Haynes manual would only give stock settings anyway, so not relevant for the Full Monty install.

Ivan himself says 4 & 1/2 to 5 turns out but I found that made the idle mixture a bit too rich.

Fazer 1000/FZ1 corner / Re: Fazer 1000 exup
« on: 28 September 2020, 07:27:52 am »
Hi and welcome. :)

Which bush is stuck?  The one inside the EXUP housing at the far end of the valve, or the bush that fits in the EXUP cover?

In either case, provided that the valve spindle rotates freely in the bush without excessive freeplay, it's not matter for concern.  Just slather it in copper grease when you reassemble it and call it good.

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