Ivanized fuelling problem.

[Falcon 269]

You'll need a pukka 90 deg carb adjustment 'driver to get at the mixture screws, Ian.  Not cheap if you don't have one already. 

Best advice - not mine originally but I use it frequently - is 'ride more, worry less'

[VNA]

Interesting.  Mike did mine many years ago.  The 'full monty' wasn't yet available so I got the then 'slip on' Ivan kit.  Mike did the job (really quick too!) and I took it for a spin.  The difference was immediately  apparent.  First thing was the difference on opening the throttle wide at 2000rpm, it pulled, then a nice big lump of torque at 2500rpm where there was little or nothing before.  Then there was a noticeable lump of extra keenness above 8000rpm.  And throttle response just felt all round a bit tighter. 
But best of all was to come.  One thing that irritated me about the bike was riding through 30 and 40 mph zones.  I had to drop to 4th because of the annoying surging at constant speed small throttle openings (does that make sense) plus vibration.  Now I could potter through towns at 30mph in 6th gear, plus overall vibration was much reduced on the bike.
I was well happy.

I've never stuck it on a dyno.
Oh aye, servicing?  Make sure your air filter is nice and clean.  Yes check C&S.  EXUP should be serviced at least once a year.
Wondering if you had the bike long before you got it Ivanised. 

[ghostbiker]

Had mine on a dyno run at events 3 times now. each time has given large variations on top BHP
normaly they do 3 runs and take the best of the 3.
One thing i will say is every guy running the dyno has said how good the bhp and torque curve is (no dips) and is allways impressed with the fuel/air ratio.
there is allways a slight lean dip just as he starts the run but was allways told that thats normal and is something to do with the dyno rather than an actual dip in air/fuel ratio.

as i say although the bhp readings have been diff the curves have allways looked the same on each dyno.
for me, bhp numbers are just for braggin rights down the pub. the curve and fuel air mix is what the real ride is all about.

[Ian-man]

You'll need a pukka 90 deg carb adjustment 'driver to get at the mixture screws, Ian.  Not cheap if you don't have one already. 

Best advice - not mine originally but I use it frequently - is 'ride more, worry less'

I don't have a special adjustment screwdriver so I will cross that of the list of things to do. Which will give me more time to stick to the advice.

[1967fazer]

I put mine on Jordans dyno a couple of months ago, on a "pay a fiver and on it goes" day, my bike has a noisy can on, but not (yet) ivanised. Results were 130 bhp! My mate put his on a dyno at Stormin' the Castle last year, similar spec bike, was putting out around 117 bhp. Ride both bikes side by side and there is hardly any difference! So I would suggest trying a different dyno, before doing anything drastic.

[Ian-man]

Well it was only a curiosity thing with me being down at Squires. I only got a bit flustered when he started going on about changing jets.
As it now seems it was a false alarm I am going to stay well clear of dyno's from now on. :rolleyes