CRF 50 question

Neverclear
Profile picture for user Neverclear
Posts
226
Joined
12/30/2006
Location
NJ US
Neverclear
Picked this up for my grandson yesterday, and there is a metal plug in the crankcase breather hose. I've owned a ton of XR/CRF playbikes over the years in all sizes, and I never remember seeing that hose closed off.

The previous owner bought it new & his kid didn't ride it much at all, so I assume it came from the dealer this way.

Can anyone let me know why that plug is in, and if it should stay?

Thanks for any help...




|
Neverclear
Profile picture for user Neverclear
Posts
226
Joined
12/30/2006
Location
NJ US
Neverclear 5/17/2017 7:52am
5/17/2017 7:52am
F150Motocrosser wrote:
Hmm, sounds like it should definitely be able to breathe... http://planetminis.com/forums/crf50/130728-crf50-crankcase-vent-questio…
Thanks for that. I know that my last ones were open, so I have no idea why Honda would deliver it with a plug held in place with a clamp. Maybe it's part of crating & should have been removed in prep.

Appreciate the link...
jeremy_smith
Profile picture for user jeremy_smith
Posts
5
Joined
4/10/2017
Location
Port Isabel, TX US
jeremy_smith 5/17/2017 8:30am
5/17/2017 8:30am
I have seen people seal off the crank case on many other engines but I wouldent.
FGR01
Profile picture for user FGR01
Posts
5112
Joined
10/1/2006
Location
AZ US
Fantasy
1222nd
FGR01 5/17/2017 12:37pm
5/17/2017 12:37pm
As I recall, the breather is actually a T setup like the bigger CRF's where it actually vents to the airbox and then has a split off hose running down by the left peg with a metal plug in it. This is a drain. Condensation and oil vapor will collect here. You just remove the plug if you see crap in the hose, clean it out, and then put the plug back in.

Item #8 in this pic. http://www.motosport.com/dirtbike/oem-parts/honda/2016/crf50f/air-clean…

The guys who are running the vent open usually have some aftermarket air filter or airbox setup and have eliminated the stock components and routing.

The Shop

See All »
Neverclear
Profile picture for user Neverclear
Posts
226
Joined
12/30/2006
Location
NJ US
Neverclear 5/17/2017 6:48pm
5/17/2017 6:48pm
FGR01 wrote:
As I recall, the breather is actually a T setup like the bigger CRF's where it actually vents to the airbox and then has a split...
As I recall, the breather is actually a T setup like the bigger CRF's where it actually vents to the airbox and then has a split off hose running down by the left peg with a metal plug in it. This is a drain. Condensation and oil vapor will collect here. You just remove the plug if you see crap in the hose, clean it out, and then put the plug back in.

Item #8 in this pic. http://www.motosport.com/dirtbike/oem-parts/honda/2016/crf50f/air-clean…

The guys who are running the vent open usually have some aftermarket air filter or airbox setup and have eliminated the stock components and routing.
Thanks for this. That would explain why it's a clear hose.

Post a reply to: CRF 50 question