Valve check on F4i - Wrist Twisters
 
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post #1 of 17 Old 06-05-2014, 10:46 AM Thread Starter
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Valve check on F4i

So this bike has just over 24k miles and they have never been checked. A local mechanic around here said they would adjust them for $400 which to me doesn't sound too bad (what do you guys think?) The Honda shops rate is $100/hr, F-that noise.

So I think I'm going to check them here soon myself to see if any are out, and if they are just pay the shop to do the adjustment. All I need to buy is a good set of feeler gauges, but I don't have a unit to sync the throttle bodies after the adjustment so I figure letting the mechanic do it would be worth it.

Anyone with an F4i have any experience? All I need are basic tools and some feeler gauges to check them right? I also plan on swapping the OEM CCT for the APE manual unit while I'm in there.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #2 of 17 Old 06-05-2014, 10:55 AM
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I'm sure LDH can chime in...

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post #3 of 17 Old 06-05-2014, 11:02 AM
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I'm sure LDH can chime in...
He quit about a week ago.

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post #4 of 17 Old 06-05-2014, 01:06 PM
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post #5 of 17 Old 06-06-2014, 07:37 PM
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Quote:
Originally Posted by TheBeeDeeGee View Post
So this bike has just over 24k miles and they have never been checked. A local mechanic around here said they would adjust them for $400 which to me doesn't sound too bad (what do you guys think?) The Honda shops rate is $100/hr, F-that noise.

So I think I'm going to check them here soon myself to see if any are out, and if they are just pay the shop to do the adjustment. All I need to buy is a good set of feeler gauges, but I don't have a unit to sync the throttle bodies after the adjustment so I figure letting the mechanic do it would be worth it.

Anyone with an F4i have any experience? All I need are basic tools and some feeler gauges to check them right? I also plan on swapping the OEM CCT for the APE manual unit while I'm in there.
You shouldn't have to worry about the throttle bodies. Yes, basic tools, feeler gauges in MM, and a service manual.

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post #6 of 17 Old 06-09-2014, 09:39 AM Thread Starter
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Quote:
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You shouldn't have to worry about the throttle bodies. Yes, basic tools, feeler gauges in MM, and a service manual.
Yeah, I was surprised at that, but I read a few different write ups where people had adjusted them and the manual said to re-sync the throttle bodies after. One guy had pictures of the vacuum gauge before and after showing how they were slightly out.

The Honda tech at the local shop told me he wouldn't worry about it even with 24k miles if it hasn't been on the track. I still may check them myself just to give me some peace of mind. I have to get most of the way there just to replace the CCT.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #7 of 17 Old 06-17-2014, 10:36 AM Thread Starter
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So on my 24,800 mile F4i I noticed tapping coming from the head area today when i cranked her up....think it's time to finally try a valve check and probable adjustment on my own.

I know on the 919, most people don't have to do a throttle body sync after, but according to this write up valve adjustment for f4i, not for the novice - Page 4 - BARF - Bay Area Riders Forum you do.

He shows how messed up the sync was after adjusting the valve. Where is a good place to find one of these vacuum tools he is using? What is it called?

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #8 of 17 Old 06-17-2014, 10:40 AM
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Don't try to sync your TB's

Start reading at post #7

https://www.wristtwisters.com/forums/...tml#post772673

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post #9 of 17 Old 06-17-2014, 01:44 PM
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LDH, is that for inline 4 engines only? or Honda specific? Just wondering as the Tuono folks get lots of benefits from syncing the Tbodies on the twin.

Or is it just a matter of knowing what the heck you are doing and not using sub-standard tools to do the job?

2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
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post #10 of 17 Old 06-17-2014, 01:46 PM
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This if for Japanese made Fi bikes

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post #11 of 17 Old 06-17-2014, 01:55 PM
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Quote:
Originally Posted by LDH View Post
This if for Japanese made Fi bikes

2009 Aprilia Tuono - Ginger
2001 XR650R BRP (Big Red Pig)
2006 Honda 599 - Ex wrecked it :-D
2007 Honda CB900F (sold)
2006 Honda VTX 1300C (sold)
YouTube Channel
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post #12 of 17 Old 06-17-2014, 02:24 PM Thread Starter
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^^that's the best gif I've seen in a while

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #13 of 17 Old 06-17-2014, 04:26 PM
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buy my 919...they dont need valve adjustments....

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post #14 of 17 Old 06-18-2014, 06:30 AM
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[QUOTE="morgstang;843977"]buy my 919...they dont need valve adjustments....[/QUOTE
I had to shim a valve at the first check on my 9er

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post #15 of 17 Old 06-22-2014, 09:19 AM Thread Starter
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I'm thinking I'm going to pick up a sixer and crack her open starting today to check the clearances. If anything is out, I'll decide then whether I want to go further or spend the $400 to have it done by a professional.

What head gasket sealant would you guys use? I've never actually taken a bike's (or car) head off.

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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post #16 of 17 Old 06-22-2014, 10:26 AM
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If the F4i is like the 9'er and it looks like it is, you just need a little bit of sealant in the half moon areas. I have used permatex ultra black on all 4 valve checks and had no leaks.


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post #17 of 17 Old 06-22-2014, 02:58 PM Thread Starter
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well, really glad I took the time to check them. They are pretty fooked.

Spec on intake is .20mm +- .03. All my intakes were in spec, but on the tight side with a 0.178 gauge.

All the exhaust were pretty messed up. Spec is .28mm +- .03 and cylinders 2-4 were all 0.229. Even that felt a little tighter than it should. Exhaust on cylinder 1 was at 0.203!

Needless to say my idea of 'babying' a bike and the previous owners are quite different LOL. She does have almost 25k miles, but should they be this tight after that mileage?

"A motorcycle is not just a two-wheeled car; the difference between driving a car and climbing onto a motorcycle is the difference between watching TV and actually living your life."
-2005 CBR 600 F4i
-2001 RC51 ** SOLD
-2002 VFR 800**SOLD
-2002 919 **SOLD
-2006 599 ** WRECKED
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