01-15-2017, 10:45 PM
(01-12-2017, 05:03 AM)The ferret_imp Wrote: Again, not trying to minimize, trying to get a scope on how large the issue is.
We have a guy with 2200 miles on his bike without an issue, but he is wondering if it is something he should be concerned over.
Unfortunately we have no idea how many CB's are sold world wide or how many are affected. If it is 1% of units affected there is no need for concern... If it were 50% affected it would be like facing an epidemic of cholera or something. I have a feeling its more the former than the latter, but truthfully we just don't know.
Well, in that case, I would say not to be worried
I'd take the 'risk'
(01-12-2017, 05:39 AM)The ferret_imp Wrote: The IACV motor .. Is that part of the throttle body assy that Rico had replaced? or a separate part? Mechanical or electronic?
indeed, that part is located in the same area as the whole throttle body
if the whole throttle body would be replaced, the IACV would be included
(01-12-2017, 06:54 AM)curlyjoe_imp Wrote: Here's a [url=https://en.wikipedia.org/wiki/Idle_air_control_actuator]wiki link that explains how the IACV works. Apparently the motor/valve can stick and thus cause idle control problems,
The same part is used on a lot of different Honda motorcycles (from 2007-2015) including all CB models in the states. [url=http://www.partzilla.com/parts/detail/honda/HP-16430-MFJ-D01.html]See link for list
If its the IACV, wouldn't also be a potential problem on all the other Honda bikes that use the same part? There is a 4P connector that plugs into the IACV so maybe corrosion could be more of a problem on the CB since it's a "naked" bike and thus exposed to the elements (including exuberant cleaning with a pressure washer) more than the other honda models.
So far I haven't had a problem with my '13 (16.5K miles).
to be honest, should not be happening and should never be an excuse nowadays
if I recall, some owners have also replaced this part alone, without succes
(01-13-2017, 10:50 PM)curlyjoe_imp Wrote:(01-13-2017, 09:04 PM)Lord Popgun_imp Wrote: I wonder if there could maybe be an issue with the plastic throttle body warping causing a binding of the IACV operation. Just throwing it out. I'm not taking mine off to see exactly how it works.
The throttle body is made out of plastic? Yeah, after taking a look at the '13 service manual, it looks like a big job to inspect/replace the IACV.
On page 5-6 of the '13 service manual, if idle rpm is too low, the IACV may be stuck closed. If idle speed is too high, the IACV could be stuck open. It seems a "sticky" IACV could be causing some of these problems.
[url=http://cb1100forum.com/forum/showthread.php?tid=9520&highlight=oil+temperature+sensor]kmoney was having problems with high idle speed and found that by unplugging the connector to the EOT sensor, the idle speed return to normal. However, I couldn't find any post by him to see if replacing the EOT sensor solved the problem.
The throttle body is made out of plastic? Yeah, after taking a look at the '13 service manual, it looks like a big job to inspect/replace the IACV.
On page 5-6 of the '13 service manual, if idle rpm is too low, the IACV may be stuck closed. If idle speed is too high, the IACV could be stuck open. It seems a "sticky" IACV could be causing some of these problems.
[url=http://cb1100forum.com/forum/showthread.php?tid=9520&highlight=oil+temperature+sensor]kmoney was having problems with high idle speed and found that by unplugging the connector to the EOT sensor, the idle speed return to normal. However, I couldn't find any post by him to see if replacing the EOT sensor solved the problem.
IF the IACV is the root of the problem, (I say IF, because all we do here is again just guessing), than its not mechanical, because using the killswitch temporarily cures the issue...and thus has to be electronical. I would think.
Again, all assumptions, no facts.