Welcome to the Honda Trail 125 Forum! We are an enthusiast forum for the Trail 125, Hunter Cub, CT125 or whatever it's called in your country. Feel free to join up and help us build an information resources for this motorcycle. Register a free account today to become a member. Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
ThankyouOn the right side of the bike the breather tube connects to the crankcase right behind the starter motor, it bends and passes to the left side of the bike where it feeds into the airbox.
View attachment 2854
RE: the PCV valve, I don't think there is one either. Once @dmonkey pointed out the location of the breather tube, I went back to the reference diagrams. After all, breathers do wear out eventually, which means they have a part number associated with them. The breather hose that attaches to the "COVER SUB-ASSY., AIR CLEANER" with clips marked 20 in this image, via the breather tube marked 1.I don't think there is a one-way positive crankcase ventilation (PCV) valve unless they hid it really well
It's funny how the full sized pickups around here will not crowd you on a bike, but will tailgate the piss out of everything else. Anything built in Korea or a Lexus RX though is is being driven by someone high, late, on their phone and more important than anyone else on the road.a bunch of Dodge Ram 1500s tailgating you on this bike
Does it run better?Perfect, thanks for the advice, I think I'll go the dumping unburned fuel into the atmosphere and Dodge ram route.
I started smoking cigs again, so I am causing more harm than that will!Perfect, thanks for the advice, I think I'll go the dumping unburned fuel into the atmosphere and Dodge ram route.
I wasn't going to do it. I know that overfilling crankcase is BAD!i mean, you can run an open breather but you'll get oil mist wherever you leave it, possibly, over time. fwiw, it also pulls in any crankcase condensation that builds up. Old cars, early to mid 60s, typically ran what they called 'draft tubes' which was an open breather to the ground, no pcv. they started using pcv valves long before emissions standards were implemented.. for a good reason. this just has a captured breather tube, leave it connected. it does zero harm to anything and removing it gains nothing good. Higher rpm running, more than this motor will turn in remotely stock form, that stock tube is fine. you get into big 11k rpm bbk motors you then need to address it some, there's all sorts of fancy case breathers & catch cans in the aftermarket grom world to do whatever you wish.