Injectors syncro/balance

[TheLegend]

Hi guys, does anyone knows how the syncro/balance of the injectors can be made to a 2017 RS NA? The place on the injectors where the adjustment screws has to be is sealed with a ferm metal cap. Is sealed only for European models because of the EURO norms reasons and without being able to increase the fuel flow, or... all models are the same(sealed cap) with no possibility of syncro/tuning/balancing?

[pekingduck]

Hi guys, does anyone knows how the syncro/balance of the injectors can be made to a 2017 RS NA? The place on the injectors where the adjustment screws has to be is sealed with a ferm metal cap. Is sealed only for European models because of the EURO norms reasons and without being able to increase the fuel flow, or... all models are the same(sealed cap) with no possibility of syncro/tuning/balancing?

Not sure exactly what is meant by the sealed caps.  The throttle body assembly is actually 2 twin-throat assemblies.  There is no adjustment between the throttle bodies of 1 & 2, nor between 3 & 4, but there is adjustment between the left and right pairs.  However, it is not a necessary adjustment unless it has been disassembled - you're more likely to do harm than good. Any tuning would be done through a Power Commander or equivalent.

[TheLegend]

Hi guys, does anyone knows how the syncro/balance of the injectors can be made to a 2017 RS NA? The place on the injectors where the adjustment screws has to be is sealed with a ferm metal cap. Is sealed only for European models because of the EURO norms reasons and without being able to increase the fuel flow, or... all models are the same(sealed cap) with no possibility of syncro/tuning/balancing?

Not sure exactly what is meant by the sealed caps.  The throttle body assembly is actually 2 twin-throat assemblies.  There is no adjustment between the throttle bodies of 1 & 2, nor between 3 & 4, but there is adjustment between the left and right pairs.  However, it is not a necessary adjustment unless it has been disassembled - you're more likely to do harm than good. Any tuning would be done through a Power Commander or equivalent.

There were disassembled for cleaning and syncro/balance purposes; the mechanic says that the tunning screws are capsulated(thank god) and finds(when disassembly) the injectors band/colliers very loose(don't know why); now, after cleaning injectors and fuel pump + tightening the injector colliers, the engine is running a little better, more responding, more "clean and round", but the vibrations... the same. I'm still struggling to do everything possible to eliminate that vibrations.
As talking about Power Commander 6, as I understand this box isn't a simple plug & play device, it needs to be tuned/calibrated by a specialist so, another costs(not small)? Thank you for your answers!

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you running 4 wideband sensors or something?

nope. I don't even know what those are!?

[pekingduck]

There were disassembled for cleaning and syncro/balance purposes; the mechanic says that the tunning screws are capsulated(thank god) and finds(when disassembly) the injectors band/colliers very loose(don't know why); now, after cleaning injectors and fuel pump + tightening the injector colliers, the engine is running a little better, more responding, more "clean and round", but the vibrations... the same. I'm still struggling to do everything possible to eliminate that vibrations.
As talking about Power Commander 6, as I understand this box isn't a simple plug & play device, it needs to be tuned/calibrated by a specialist so, another costs(not small)? Thank you for your answers!

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If your complaint is vibration, specifically high-frequency vibration, that is the nature of inline 4 cylinder engines - they all buzz.  If you search the archives for vibration, you may find plenty of threads on the subject.

High-frequency vibration affects some people (like me) more than others.  For some, it isn't even noticeable.  Even with the counterbalancer, it can't be rid of.  There is a premise that the designers introduced some lumpiness in the idle for "character", by mis-timing one set of intake cam lobes, but that may or may not affect the vibration.

[TheLegend]

those screws should not have been touched . they can be calibrated on a flow bench for injectors by somebody that knows what they are doing, or on the bike, with 4 afr gauges (wideband) on a dyno for a race tune. he 'found' them that way? highly, highly unlikely.  they are factory set and thats it. he did something he shouldn't have. plain and simple.

He didn't, because they where capsulated . Although he is an experienced mechanic so, Is not a rookie

[TheLegend]

good. tell him to leave them alone. like said.. how's he going to tune them or adjust them w out the correct equipment?  you don't just do it by ear. does have have a flow bench? if he's trying to eliminate a 'vibration' how is he determining which one is out of sync? hence the '4 afr' comment? 

being experienced and knowledgeable also would tell him to leave it alone.  Being experienced doesn't guarantee its been good experience. some people do things poorly for decades.

If he has to mess w them, tell him to get them cleaned, flow tested and put them back in. thats it.

That's exactly what he did: clean and put them back; he tried to help me and eliminate the simplest causes(dirt+syncro) because the engine runs a little stumbled too and yes they had dyno stand and etc, they have been dealers for 30 yrs for Kawa&Yamaha, they know what they do but for this RS they don't have the right soft and know-how; maybe my english isn't so good and I don't know how to expres myself technically good enough so, don't be so cruel. Thank you!

[TheLegend]

Again, that means nothing as far as how long they've been in business.. but as long as you're happy w them thats all that matters.  these bikes arent supposed to be razor smooth, that wasnt the point of them.  But alls well that ends well, at least they didnt get in there and start messing w them any further.

"m in sc: these bikes arent supposed to be razor smooth, that wasnt the point of them" I do not agree with you at all, till recently Honda was recognized as being the most reliable, super smooth as a Swiss clock, that's one of the main reasons why we buy Honda. Regarding the strong/abnormal engine vibrations: this is not a particularity to be proud of, or to take it as it is because that's how this moto are build for; on the contrary, vibrations like that means an unbalanced movement(due to a cause) that is not only unpleasant to be ridden but sooner or later will certainly lead to a damaged engine. 
I came here for real help, advices and suport so, don't shoot the pianist!  

[peterbaron]

…. or get rid of the injectors and install 4 carbs 

[pekingduck]

…. or get rid of the injectors and install 4 carbs 

....or a 4-into-1 intake manifold with a CV carb.

[rdprdp01]

i am not familiar with your original post or the edited version. I just saw this post. Here is what I do know:

You are angry and feel wronged.

You have been a member of the Forum for years.

I and other Forum Members have enjoyed your many posts.

It appears the same is true for you.

I believe our Moderators do an outstanding job.

I suspect that this incident is a misunderstanding that we can resolve with an actual dialogue.

I will send you my cell number in a private message. If you are so inclined, I would like to actually talk to you.

Let’s see if we can sort this out.

I will be available in 30 minutes.

David