Is it a good idea to clean the injectors after 8-10 years of use ?
Any good affect on the engine?
A write up would be nice.
But if are the injectors ... should not the engine performance to be bad as well ?
The bike is quick and responsive all the time , the only bad is vibes in foot
Now are not that bad , but are in left and right about the same .( not all the time just avout 4500- 5200 rpm and less when engine is hot )
There are many factors that affect the fuel system. The addition of ethonol is one of the worst offenders and headaches. Attracts moisture into the fuel, not good..Moisture in the tank=rust. Water in fuel=crappy running..
Like tires, as they gradually wear, you don't notice them until their worn out/squared off. Then you put on a new set and holy cow, what a difference!!
A dirty fuel system, (varnish), carbon build up in the top end, all take their toll, OVER TIME...
Yes, if a large piece of crap gets past the filter and makes it to the actual fuel injector, it can clog it up, mess up a full, nice even spray pattern(crappy performance).
Running fuel injector cleaner in the FZ as the same as your 4 stroke FI (or carbed car). There are different products (I'm not familiar with the one posted above) but if allowed for a 4 stroke, use the appropriate amount/ tank and it should be fine. Techtron and Seafoam I'll use for different applications including the FZ. Both work, however, the RingFree, IME in my boat (60 gallon built in tank) and other small machines works much better (and much more expensive (you get what you pay for)..
IE, about 2 months ago, I was running an 8 HP chipper /shredder (3,600 RPM's) after trimming a bunch of tree's. When I started the engine, first pull BTW, it cranked but wouldn't idle down without partial choke. It also had a slight misfire at WOT. I added some Seafoam to the tank (engine still WOT) no change as I "chipped" away. Added some Techtron, still WOT (still chipping away), NO change. Ok, once I'm done, looks like a carb clean... Let me try some of the "good stuff", the "Ringfree". The engine never stopped from WOT xduring this entire time frame(about an hour and a half). Put the
Ringfree in, on the very heavy side. Kept chipping. Eventually,
the misfire stopped at WOT. Humm, lets see about idle. Adjust the throttle down,
idled down as it should, smooth, (no partial choke, crank right up to WOT, No misfire. (This is a simple, single cylinder, air cooled, carbed engine).
I did absolutly nothing else but add fuel additives and it cleaned the carb to where it did not need cleaning (back to normal).
BTW, I work on mowers, weedeaters (2 and 4 strokes), generators, etc, just about any gas engine. 90% of most issue's are clogged up jets in the carb (varnish) from no fuel stabilizer/sitting, in as short as a a month...
Look at those small yellow or clear fuel lines on your weedeater/chain saw, etc. You'll notice over time, they harden up and eventually fail. If you keep fuel in the tank, the lines are considerably WORSE in the tank, than outside. I've plucked the filter and what left of the fuel line from the inside of the tank(R&R all fuel lines with some up to 15% ethonol resistant line). leaving the tank dry and running the engne dry definitly helps extend the life of the lines. I also keep a good Marine (Gas Shok" or K-100) stabilizer in the fuel (for the little bit of fuel that remains even run dry)
My 9 year old Snapper mower has
NEVER had the carb apart (except for a jet change-too rich from the factory)
In short, IME, a fuel system cleaner in any 2 or 4 stroke engine is about a necessity and may very well save you from tearing your carb apart for a cleaning. If it keeps me from pulling the fuel system, injector out for a cleaning, chasing as issue with crappy running, its well worth it..
BTW, Randy (FinalImpact, did do a thread about cleaning them, applying power to them to activate, etc). I'm sure he'll link it here.
I've never had to pull my injectors, bike runs like a top, 46-48 MPG (US gallons) around town..
