Does the RC really need this? - Honda RC51 Forum : RC51 Motorcycle Forums
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 08-23-2009, 12:35 PM Thread Starter
 
Join Date: Aug 2009
Posts: 7
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Does the RC really need this?

I purchased a basket 2003 RC51 a couple weeks ago and I'm diving in and doing the usual flapper valve removal and block off plates. On the front cylinder - there is a hose running off the right side of valve cover that runs to a little scavanger plastic bottle under the air box - the air box also has a rubber hose running into the same scavanger bottle - which has a drain hose that runs under the bike (on mine the drain hose is plugged). Does the RC really need this or can I just plug the air box like I did with block off plate mode and plug off the valve cover?
mpcycledesign is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 08-23-2009, 09:55 PM
Moderator
 
SubSailor's Avatar
 
Join Date: Oct 2008
Location: Sarasota, FL
Posts: 6,461
Mentioned: 24 Post(s)
Quoted: 88 Post(s)
That's the crankcase breather storage tank and drain tube.
It stores the oil mist residue from the crankcase breather.
When you change the oil, just loosen the clamp and remove the plug and drain the line.
Then insert plug and side clamp back over the plug to secure it.
SubSailor is offline  
post #3 of 7 (permalink) Old 08-24-2009, 06:54 AM
 
Join Date: Jul 2009
Posts: 20
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
so it can't be removed??

not even if you run a tube pointing upwards and put a small filter on the end of it?
trboboost91 is offline  
 
post #4 of 7 (permalink) Old 08-24-2009, 10:13 PM
Moderator
 
SubSailor's Avatar
 
Join Date: Oct 2008
Location: Sarasota, FL
Posts: 6,461
Mentioned: 24 Post(s)
Quoted: 88 Post(s)
In that case I'd say...probably.
After all, cars in the pre-EPA years vented their crankcases to the outside, although they also had filters or air/oil separator screens to hold down the oil misting.
SubSailor is offline  
post #5 of 7 (permalink) Old 08-25-2009, 10:42 AM
Senior Member
 
Join Date: Jul 2008
Location: Dallas
Posts: 863
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Again I agree with some. It can probably be done but do it right or you could have a mess on your hands
jgos929 is offline  
post #6 of 7 (permalink) Old 08-25-2009, 10:51 AM
Moderator
 
SubSailor's Avatar
 
Join Date: Oct 2008
Location: Sarasota, FL
Posts: 6,461
Mentioned: 24 Post(s)
Quoted: 88 Post(s)
When I drained mine during last oil change, there was quite a bit in the hose.
Now I don't know how long it took to accumulate that much as I didn't do the last oil change, but the service manual says to drain it more often if high RPMs are used frequently.
SubSailor is offline  
post #7 of 7 (permalink) Old 09-05-2009, 05:34 AM
 
Join Date: Sep 2009
Posts: 5
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Thumbs up

I think that amount of oil residue in this breather line depends also of the state(health) of engine...Engines with more miles...will leave more oil in this tube...and also..if we put more oil in the engine than it's prescribed...or if motorbike fall down from the side stand...certain quantity of oil can flow in airbox...and then in this tube which is a sort of bleeder...
BMW M 5 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda RC51 Forum : RC51 Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome