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Hi all,

Must confess I've been lurking for a little while and trying to read up and learn about these fabulous bikes. There is a real wealth of info on here - thank you.

I took the plunge and bought a beautiful 01 F4 750 a couple of weeks ago. It has done less then 7500 miles.

What with the wonderful weather we have in the UK I haven't been able to really take it out for a spin properly yet. I've attached a few photos for y'all.

Now to my inevitable questions.
I know the previous owner(s) haven't really been riding this beauty; from the paperwork it looks like an average of 300 miles per year the last few years only!

So my to do list so far is:
Adjust suspension back to stock/factory (done - what a difference!)

Change oil and oil filter (this was done last year and I think "nanotech" was put in by the dealer - this is an offroad bike oil??) Have ordered Mobil 1 Racing 15W50 plus Champion COF203 filter from Halfords

Fuel filter: I took the bike out for a 10 minute ride after adjusting the suspension but had to bring it home in the nick of time as it started raining! :banghead:
Now I know this bike is an 01 the same year as my first bike, a 2 stroke NSR, so I figure you need to warm it up before you give it the beans.
Still after 5 minutes or so when I twisted the throttle in first or second it didn't accelerate smoothly, like the revs held around 4-5k and then a few seconds later it would accelerate. I did get a good blast in third gear taking the revs past this a little later and this felt great! Made my paining hands worthwhile!

So I'm not really sure and want to ask you guys - is this normal? Does it take a while to warm up or does the acceleration hit you at once towards the higher revs two stroke style?
My thinking is that maybe the previous owner filled up the petrol tank last year and the fuel in the bike is very old with no stabiliser.
So should I drain the fuel out and maybe change the filter too?
Do you guys in the UK use normal unleaded or Shell V Power?

I found this as a guide to change the filter for anyone that is interested for the 750, 1000 and Brutal models

http://mvfaq.blogspot.co.uk/2006/11/fuel-filter-check-andor-change-every.html

Thanks in advance :)
 

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My mechanic puts Putoline Nano-Tech 4+ 10w60 fully synthetic in my 2000 model F4 750.
They also do off road and competion: http://www.sportsbikeshop.co.uk/motorcycle_parts/content_cat/1891 scroll down and look on the left near the bottom.

It is not cheap oil. I have been using it for 5yrs 13000 miles or so.

Mine does not need to warm up to rev, but I like to respect my engines.
I am running a PCIII and SilMoto cans. XBikes did some tuning on a Dyno, although PCIII are not the best and she can be a tad snatchy in low gear.

I do not like using fuel with ethanol, I use BP super unleaded, Esso super(or whatever it's called is also ethanol free) Shell has ethanol, but it depends where you live as to where you can get ethanol free.
In winter I use fuel stabilizer and go for a 15 mile ride or so every few weeks.
 

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Hi Ken and welcome.
I have a 2004 F4 750 since new and had to replace all fuel lines in the fuel tank becaus they had perished due to ethanol additive in the fuel which I used over the years and my bike has less miles than yours although they are almost all track day miles.
Change the fuel filter at the same time.
By the way what's happend to your gas tank fairing?
I don't have any issues revving although like MVBERT I have some mechanical sympathy so always warm her up properly. Like MVBERT I too am running a PC III with free flow exhausts and had it set up on a dyno.
 

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once it warms up to about 120 F it should run fine. The fuel injectors may need to be cleaned and see what happens after you change the plugs. if that doesn't help then it may be an electrical problem
 

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Discussion Starter #5
Ok guys thanks I'm going to try the following:

oil and filter change

fuel: drain old fuel then put in some star tron:
http://www.ebay.co.uk/itm/Motorcycle-Star-Tron-Fuel-Additive-Enzyme-Treatment-250ml-UK-/111988203261?hash=item1a13045efd:g:8ZMAAOSwWTRW2IL~

then fill up with some quality petrol.

Anyone used Star Tron in the UK? It looks like it can be used to clean fuel injectors as well as a fuel stabilizer!

Plugs were done last year according to the service invoices but I will do these next followed by fuel filter and lines if the above doesn't yield results.

TakisM - good eye! I didn't even spot this must have been so wrapped up with the rest of the bike. I've contacted the seller who has said he will have a look round to see if this piece is lying around so I'm keeping everything crossed..
 

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Welcome to the world of MV and pleased you took the plunge on the 750, nice machines. I would say there is something not right with yours, start with the basics as you are - including new plugs, I use iridium plugs but not everyone likes them, then get the throttle bodies balanced as well as the mentioned fuel filter and new air filter.
I have never had anything but plugs oil filters and yearly balance on the throttle bodies, all done by myself, I have no tuning aids such as pipes or PCIII equipment and run perfect in all the 12 years of ownership, they can be a little snatchy a low revs but never been really evident on the one I have (EVO3)....... has always revved cleanly from cold without a hiccup......I am now up to 12k miles.
 

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Welcome to the family !!!! Old fuel (especially ethanol fuel) wil make a bike run like crap.

Dump it and get some non-ethanol. Startron isn't really a fuel system cleaner. There are better products for that from a variety of sources.

She should rev cleanly from bottom, but she will have a big hit when you get on the pipe!!!! Enjoy !
 
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Discussion Starter #8
Welcome to the family !!!! Old fuel (especially ethanol fuel) wil make a bike run like crap.

Dump it and get some non-ethanol. Startron isn't really a fuel system cleaner. There are better products for that from a variety of sources.

She should rev cleanly from bottom, but she will have a big hit when you get on the pipe!!!! Enjoy !
Thanls Esq'z me!
Anyone got any fuel system cleaners they would recommend?
I'm looking at an stp one: http://www.ebay.co.uk/itm/Motorcycle-STP-Complete-Fuel-System-Cleaner-Double-Strength-400ml-UK-/112019188224?hash=item1a14dd2a00:g:PEQAAOSwf05XPC2F

or are they all much the same..
 

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There's been some good recent threads on fuel injector cleaners earlier this year and from what I can tell the three best products were:

Threebond Engine Conditioner
http://seafoamsales.com/sea-foam-motor-treatment/
Yamaha Ring Free

From what I've been reading I would love to try the Yamaha Ring free and the Threebond Engine Conditioner in that order. Unfortunately, can't get either in Blighty unless anyone's mamaged to import them?

Oh and apparently after using them you're due an oil change.
:f4::f4:
 

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Discussion Starter #12
Update:

Siphoned off all old petrol and added some redline petrol treatment followed by a full tank of Esso Super Unleaded. Took the bike for a 20 minute ride and the performance has improved significantly already.
SHE GOES LIKE A TRAIN.

Still not fully smooth but much much better; I'm looking forward to seeing how she runs once the whole tank and cleaner has been used but she certainly feels more powerful and perhaps quicker then my GSXR 600 K4 but I won't know for sure until I get her out for a proper run.

I thought I'd post this link for UK riders with reference to ethanol in petrol:

http://www.groups.tr-register.co.uk/wessex/ethanol-update.html

I read on the forum that fuel starts to degrade after 2-3 weeks!
In terms of precautions do you guys simply always put in ethanol free petrol plus a stabiliser for peace of mind?
 

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Interesting. No wonder all our in tank fuel lines lunched it!
Looks like BP ultimate , Esso super or Total from now until who knows when......
Gonna have to plot them in the gps.

How you getting on?
 

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Hi Takis,

Yes, makes me wonder! I've been putting shell v power in my car (turbo) for a while now but Shell's silence sounds a lot like they put Ethanol in..
I'm fortunate to have an Esso station near my house!
Getting on ok, just itching to take the bike out whenever possible but the weather and life seem to get in the way most of the time. It is simply the most beautiful bike along with the 916 that I've ever seen..
I ordered a tank fairing for a F4 1000 from the US so waiting to get that, has some scratches on it which I'm hoping I can sort with a wet/dry sander. It's like the bike isn't complete without all its fairings!
After that oil change is on the cards.

Where do you get your fuel filters and hose from mate?
 

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Hi Ken,
I had a batch of oil and fuel filters that I bought back in 2005 (when I started doing track days) from a London based MV enthusiast shop of some notariety that I won't name now (suffice it to say I am not sure if they are even about any more). So I haven't had to purchase any filters recently.
Re hoses I was lucky that my neighbour who is also a petrol head , wrench monkey had some left overs that I could use when I had to retube my tank.
I did struggle to find good suppliers although you can try the following
http://www.advancedfluidsolutions.co.uk
And of course Demon Tweaks.
Sorry can't be of much more help on this.
I have same problem between work, family and our weather here it seems like we only get a five minute window to enjoy these machines.
Anyway good luck and keep us advised how you're getting on.
Are you anywhere near Bishops Stortford (CM23)?
 
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