Starter valves?

It was my experience over about 90,000 miles on my 98 VFR that the
starter valves would like carbs lose synch over time. You'd get a
slight vibration at about 4000 rpm and the level of vibration would
increase and the range of RPM would spread. Re syching would eliminate
the vibration not unlike synching carbs.

My 2000 VFR has only about 42000 miles .. first owner rode it little ...
and have had to adjust valves only once.

Gary


What the HXXX are you guys talking about? Starter valves? Is that next
to the muffler bearings?

Ive had a wrench in my hand a few times and have never heard of a
starter valve. I have not had to work on VFR's much yet............knock
knock......


Cory
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I've turned a wrench or two myself and never heard of 'starter valves' either - must be unique Honda nomenclature:

"Honda refers to the fuel injection throttle body synchronizing as Starter Valve Synchronization. Basically the purpose is to adjust throttle valve for fuel injection
throats so that they pass as much fuel-air mixure as all the others (balancing the load by each piston). This balance will affect the response, smoothness, mileage, performance and running temperature of the engine."

from : http://www.fireblades.org/forums/art...9rr-954rr.html


---- Kuehl Cory J wrote:
>
> It was my experience over about 90,000 miles on my 98 VFR that the
> starter valves would like carbs lose synch over time. You'd get a
> slight vibration at about 4000 rpm and the level of vibration would
> increase and the range of RPM would spread. Re syching would eliminate
> the vibration not unlike synching carbs.
>
> My 2000 VFR has only about 42000 miles .. first owner rode it little ...
> and have had to adjust valves only once.
>
> Gary
>
>
> What the HXXX are you guys talking about? Starter valves? Is that next
> to the muffler bearings?
>
> Ive had a wrench in my hand a few times and have never heard of a
> starter valve. I have not had to work on VFR's much yet............knock
> knock......
>
>
> Cory
> _______________________________________________
> vfr mailing list
> vfr@xxxxxx
> For subscription and delivery options:
> https://lists.cs.wisc.edu/mailman/listinfo/vfr

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Regardless of name and carb vs. FI, the air needs to be balanced to each
cylinder for the engine to run smooth at idle. With different amounts of
air, the cylinders run with different amounts of power (and richness)
creating inconsistent power. Honda may have changed the name to avoid being
compared to carbs -- Idunno.

Throttle plates and orifices wear and leaks develop or seal themselves
throughout the system over time, so it is necessary to get this back into
balance. The procedure should be pretty similar to carb balancing ... get
all of the vacuums equal at a set idle speed.

Have fun.

Carl

-----Original Message-----


I've turned a wrench or two myself and never heard of 'starter valves'
either - must be unique Honda nomenclature:


---- Kuehl Cory J wrote:
>
> It was my experience over about 90,000 miles on my 98 VFR that the
> starter valves would like carbs lose synch over time.
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It's pretty close to carb balancing and I do mine every 5K or so as it's
relatively simple. My indication of when it's time is how smooth the
engine sounds under a light load at lower RPMS - such as when putting
through a town at 30 MPh. If it's loping along at an even beat, all is
well.

For the 5th-Gen (49 states version) the process is roughly:

- Remove air hoses and cap the Pair intakes.
- connect carb balancers to each cylinder's vacuum line
- Set idle to spec and warm engine to operating temp
- Adjust 2,3 & 4 to match #1. (my shop manual doesn't mention this step,
or it's not clear)
- Re-check idle
- Adjust 3&4 (IIRC) to a spec'd level higher than #1. I don't have the
manual in front of me, but I think one gets set 10 mm Hg above #1 while
the other is 20 mm Hg.

The most difficult steps are capping the PAIR intakes (and that's not
that hard) and actually turning the adjustment screws as they are nicely
hidden behind the frame, a 7mm box wrench works well here.

-Mike

Walzer, Carl (.) wrote:
> Regardless of name and carb vs. FI, the air needs to be balanced to each
> cylinder for the engine to run smooth at idle. With different amounts of
> air, the cylinders run with different amounts of power (and richness)
> creating inconsistent power. Honda may have changed the name to avoid being
> compared to carbs -- Idunno.
>
> Throttle plates and orifices wear and leaks develop or seal themselves
> throughout the system over time, so it is necessary to get this back into
> balance. The procedure should be pretty similar to carb balancing ... get
> all of the vacuums equal at a set idle speed.
>
> Have fun.
>
> Carl
>
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Unlike carbs they are NOT all set equal ... that's why I said the manual
needs careful reading ... not hard but not exactly like carbs which would
normally all be set to the same vacuum.

Gary Dehner

----- Original Message -----
From: "Walzer, Carl (.)"
To: ; ; "Kuehl Cory J"

Sent: Wednesday, April 30, 2008 11:13 AM
Subject: RE: Starter valves?


> Regardless of name and carb vs. FI, the air needs to be balanced to each
> cylinder for the engine to run smooth at idle. With different amounts of
> air, the cylinders run with different amounts of power (and richness)
> creating inconsistent power. Honda may have changed the name to avoid
> being
> compared to carbs -- Idunno.
>
> Throttle plates and orifices wear and leaks develop or seal themselves
> throughout the system over time, so it is necessary to get this back into
> balance. The procedure should be pretty similar to carb balancing ... get
> all of the vacuums equal at a set idle speed.
>
> Have fun.
>
> Carl
>
> -----Original Message-----
>
>
> I've turned a wrench or two myself and never heard of 'starter valves'
> either - must be unique Honda nomenclature:
>
>
> ---- Kuehl Cory J wrote:
>>
>> It was my experience over about 90,000 miles on my 98 VFR that the
>> starter valves would like carbs lose synch over time.
> _______________________________________________
> vfr mailing list
> vfr@xxxxxx
> For subscription and delivery options:
> https://lists.cs.wisc.edu/mailman/listinfo/vfr
>

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OK, so I read the manual very carefully and it states to sync all valves to
number 4. Sounds to me like they would all be equal..

Paul

----- Original Message -----
From: "Gary Dehner"
To: "Walzer, Carl (.)" ; ;
; "Kuehl Cory J"
Sent: Thursday, May 01, 2008 7:02 PM
Subject: Re: Starter valves?


> Unlike carbs they are NOT all set equal ... that's why I said the manual
> needs careful reading ... not hard but not exactly like carbs which would
> normally all be set to the same vacuum.
>
> Gary Dehner
>
> ----- Original Message -----
> From: "Walzer, Carl (.)"
> To: ; ; "Kuehl Cory J"
>
> Sent: Wednesday, April 30, 2008 11:13 AM
> Subject: RE: Starter valves?
>
>
> > Regardless of name and carb vs. FI, the air needs to be balanced to each
> > cylinder for the engine to run smooth at idle. With different amounts
of
> > air, the cylinders run with different amounts of power (and richness)
> > creating inconsistent power. Honda may have changed the name to avoid
> > being
> > compared to carbs -- Idunno.
> >
> > Throttle plates and orifices wear and leaks develop or seal themselves
> > throughout the system over time, so it is necessary to get this back
into
> > balance. The procedure should be pretty similar to carb balancing ...
get
> > all of the vacuums equal at a set idle speed.
> >
> > Have fun.
> >
> > Carl
> >
> > -----Original Message-----
> >
> >
> > I've turned a wrench or two myself and never heard of 'starter valves'
> > either - must be unique Honda nomenclature:
> >
> >
> > ---- Kuehl Cory J wrote:
> >>
> >> It was my experience over about 90,000 miles on my 98 VFR that the
> >> starter valves would like carbs lose synch over time.
> > _______________________________________________
> > vfr mailing list
> > vfr@xxxxxx
> > For subscription and delivery options:
> > https://lists.cs.wisc.edu/mailman/listinfo/vfr
> >
>
> _______________________________________________
> vfr mailing list
> vfr@xxxxxx
> For subscription and delivery options:
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Paul,

Perhaps different year ... the 98 thru 2000 factory manual are not equal
.... perhaps the new ... VTEC is all manual ..

Gary Dehner


----- Original Message -----
From: "Paul Kolbo"
To: "Gary Dehner" ;
Sent: Sunday, May 11, 2008 1:29 PM
Subject: Re: Starter valves?


> OK, so I read the manual very carefully and it states to sync all valves
> to
> number 4. Sounds to me like they would all be equal..
>
> Paul
>
> ----- Original Message -----
> From: "Gary Dehner"
> To: "Walzer, Carl (.)" ;
> ;
> ; "Kuehl Cory J"
> Sent: Thursday, May 01, 2008 7:02 PM
> Subject: Re: Starter valves?
>
>
>> Unlike carbs they are NOT all set equal ... that's why I said the manual
>> needs careful reading ... not hard but not exactly like carbs which would
>> normally all be set to the same vacuum.
>>
>> Gary Dehner
>>
>> ----- Original Message -----
>> From: "Walzer, Carl (.)"
>> To: ; ; "Kuehl Cory J"
>>
>> Sent: Wednesday, April 30, 2008 11:13 AM
>> Subject: RE: Starter valves?
>>
>>
>> > Regardless of name and carb vs. FI, the air needs to be balanced to
>> > each
>> > cylinder for the engine to run smooth at idle. With different amounts
> of
>> > air, the cylinders run with different amounts of power (and richness)
>> > creating inconsistent power. Honda may have changed the name to avoid
>> > being
>> > compared to carbs -- Idunno.
>> >
>> > Throttle plates and orifices wear and leaks develop or seal themselves
>> > throughout the system over time, so it is necessary to get this back
> into
>> > balance. The procedure should be pretty similar to carb balancing ...
> get
>> > all of the vacuums equal at a set idle speed.
>> >
>> > Have fun.
>> >
>> > Carl
>> >
>> > -----Original Message-----
>> >
>> >
>> > I've turned a wrench or two myself and never heard of 'starter valves'
>> > either - must be unique Honda nomenclature:
>> >
>> >
>> > ---- Kuehl Cory J wrote:
>> >>
>> >> It was my experience over about 90,000 miles on my 98 VFR that the
>> >> starter valves would like carbs lose synch over time.
>> > _______________________________________________
>> > vfr mailing list
>> > vfr@xxxxxx
>> > For subscription and delivery options:
>> > https://lists.cs.wisc.edu/mailman/listinfo/vfr
>> >
>>
>> _______________________________________________
>> vfr mailing list
>> vfr@xxxxxx
>> For subscription and delivery options:
>> https://lists.cs.wisc.edu/mailman/listinfo/vfr
>


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Yes, it's a sixth gen model.

Paul

----- Original Message -----
From: "Gary Dehner"
To: "Paul Kolbo" ;
Sent: Wednesday, May 14, 2008 8:13 PM
Subject: Re: Starter valves?


> Paul,
>
> Perhaps different year ... the 98 thru 2000 factory manual are not equal
> ... perhaps the new ... VTEC is all manual ..
>
> Gary Dehner
>
>
> ----- Original Message -----
> From: "Paul Kolbo"
> To: "Gary Dehner" ;
> Sent: Sunday, May 11, 2008 1:29 PM
> Subject: Re: Starter valves?
>
>
> > OK, so I read the manual very carefully and it states to sync all valves
> > to
> > number 4. Sounds to me like they would all be equal..
> >
> > Paul
> >
> > ----- Original Message -----
> > From: "Gary Dehner"
> > To: "Walzer, Carl (.)" ;
> > ;
> > ; "Kuehl Cory J"
> > Sent: Thursday, May 01, 2008 7:02 PM
> > Subject: Re: Starter valves?
> >
> >
> >> Unlike carbs they are NOT all set equal ... that's why I said the
manual
> >> needs careful reading ... not hard but not exactly like carbs which
would
> >> normally all be set to the same vacuum.
> >>
> >> Gary Dehner
> >>
> >> ----- Original Message -----
> >> From: "Walzer, Carl (.)"
> >> To: ; ; "Kuehl Cory J"
> >>
> >> Sent: Wednesday, April 30, 2008 11:13 AM
> >> Subject: RE: Starter valves?
> >>
> >>
> >> > Regardless of name and carb vs. FI, the air needs to be balanced to
> >> > each
> >> > cylinder for the engine to run smooth at idle. With different
amounts
> > of
> >> > air, the cylinders run with different amounts of power (and richness)
> >> > creating inconsistent power. Honda may have changed the name to
avoid
> >> > being
> >> > compared to carbs -- Idunno.
> >> >
> >> > Throttle plates and orifices wear and leaks develop or seal
themselves
> >> > throughout the system over time, so it is necessary to get this back
> > into
> >> > balance. The procedure should be pretty similar to carb balancing
....
> > get
> >> > all of the vacuums equal at a set idle speed.
> >> >
> >> > Have fun.
> >> >
> >> > Carl
> >> >
> >> > -----Original Message-----
> >> >
> >> >
> >> > I've turned a wrench or two myself and never heard of 'starter
valves'
> >> > either - must be unique Honda nomenclature:
> >> >
> >> >
> >> > ---- Kuehl Cory J wrote:
> >> >>
> >> >> It was my experience over about 90,000 miles on my 98 VFR that the
> >> >> starter valves would like carbs lose synch over time.
> >> > _______________________________________________
> >> > vfr mailing list
> >> > vfr@xxxxxx
> >> > For subscription and delivery options:
> >> > https://lists.cs.wisc.edu/mailman/listinfo/vfr
> >> >
> >>
> >> _______________________________________________
> >> vfr mailing list
> >> vfr@xxxxxx
> >> For subscription and delivery options:
> >> https://lists.cs.wisc.edu/mailman/listinfo/vfr
> >
>
>
>

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