Has any guru out there used fuel injector cleaner e.g. Wynns etc. as an add in to their fuel, was wondering if this stuff is any good or a waste of time? Alternately what sort of miles/ kilometers would be done before pulling injectors for a proffesional clean or testing?
Thanks for any input. ........ Marty

I run some Techron thru my Multi once in a while. Just pay attention to the amount to mix. It can't hurt

I havent used such, but i think, that its very vise to take them about every 40 000kms to professional test. I did that and there was allkind very small shit in that injector filter inside it. They tested flow before maintain and after maintain and all results was put to papers. There was same time my friends injectors and figured out, that one of his injectors had so bad charcters, that it had to change to new one. Guys did great job and i am satisfied to results. I change that normal fuel filter quite often, but thats not enough! Sometimes have to clean totally also fuel tank and fuel pump filter connected to lower end of pump. Same with fuel lines. They told, that about 90% of fuel problems are coming from dirty filters, so that is MOST IMPORTANT job to injection system. Also, if fuel tank is rusted ANY WAY, then it takes that very small rust whole time to injectors. Its so thin, that it dont stop to normal filter, but comes to injectors... Same, as if use carbon fibre fuel tank, that cf comes very easily from tank to filters and to injectors(that happened to my "888 friend"):twisted: Its not so bad idea to cover inside of tank with "sealant"/covering products. I did that to my 750 Paso and its very good now. Next springtime same to my 907IE tank. I have already all chemicals for that job... Look inside Your tank and check, how rusty it is (maybe).

Thanks for the good advice gentlemen , I think that as Annti says ,root cause of injector cleanliness and smooth running is really down to clean tank, lines and filters. Looks like that may be a nice rainy day project with a few ales inside the bike shed.Top stuff men, thats why this site is so good, the expertise and prompt answers are an absolute joy.
Heres to clean lines and smooth running, Regards, Marty

I agree, when serious questions are asked, nice to have straight forward reply, Australia is a land of easy living jokers , so sometimes serious comes with a joke/ laugh, but all in good fun! Got home from work and put a strong light in Paso tank. Looked not too bad,can see something /stuff/crap, not much ,but will take off , remove parts, rinse and check more. Possibly line/seal, have bought a kit for my 350 desmo and 900ss bevel, makes sense if a lot of tanks, to do all in production line style. Thanks on the info. Think that your English is better than my Finnish , but always willing to try something new , especially your ladies... !!!!!!!!!! Cheers... Marty

Most fuel additives are designed with cars in mind.
Some fuel additives (including ethanol) can have corrosive effect on the hoses.
I have had two hoses burst on me - both were near new hoses.
One was inside the tank - between the pump and the filter...that one took some finding, too...
The other was outside the tank (I had a second in-line filter there)...
Fuel pissed everywhere for a few seconds - not a nice feeling that you're about to become a fireball...

In both cases the hoses were perished and the elastomer was slimey and breaking down.

Both were not long after injector cleaners were added.

...just my 2 cents worth...

I strongly recommend to line the tank with epoxy.
The 907 / Paso tank is a terrible design for collecting rust - particularly at the apex where the fairings join.

Thanks Laddie, Sounds as if you have had the hell trip on the fuel hoses. I've got a Yammie jetski SUV1200 and used to run premium in it (manual did state standard fuel, but thought it may give it abit more punch), and that fuel was breaking down some of the fuel pump membranes, so it does say that also these modern fuels can be pretty volatile and destructive . Think that maybe some brands more so than others.
On the tank lining thing , what did you use? I have a POR15 kit on hand and will use that..... Cheers

I used Megapoxy - which is a cement additive for higher strength concrete
It is polyester - which is fuel resistant
I lined a tank that was rusted with pin holes with it.

You can buy it in 5 litre kits [part A & B like araldite] for about $100 bucks
You only need about 300 -500 mls to do the tank - less if it has no holes.
It can be thinned with metho to make it run easier and better adhesion - this prevents crevice corrosion and de-laminating
Metho also increases the cure time.
best to give the tank a light acid wash to get any scale out before lining.

I have since got a new tank - I ordered this before I repaired the old one.
I haven't lined it yet - I want to see if I can treat the bare steel effectively.
I'm still working on that...

Laddie, a word of caution, the polyester epoxy resin you are referring to is the same product used in Norton Commando glass tanks. The new fuel formulations are destroying these tanks after just a few miles, per the British bike forum, and my first hand experience. One of my customers now has a nos PR tank with less than 50 miles on it that has been turned to goop! I myself have the 907 rust blues, cleaned it out and used a product from Wurth that worked very well until I sprung a small permeation, not even a visible leak, and used the wrong product to clean the fuel residue out which ruined the Wurth coating.

I lined the tank about 12 months ago and have used:
unleaded (ULP) premium (PULP) and ethanol blends to 10%
also some of the injector cleaners

so far, so good - but I expect the resin will probably break down with aggressive chemicals. I now have a new tank and want to protect it (internallly) from corrosion. I'm keeping an eye out for either a liner material or a corrosion inhibitor that will dissolve in fuel.
I also occasionally put some metho in the tank to dissolve any accumulated water.

The last tank had obviously been left "dry" and the whole inner surface had rusted.
The condensation had obviously collected in a humid environment.

I'm hoping to find something like fuel-miscible fish oil or lanoline - it might smell funny but nothing will rust...

I used POR 15 Kit and result seem perfect...