1290 SDR Crankcase breather reroute question

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MindTrainer
50cc
50cc
Posts: 1
Joined: Sun Jul 22, 2018 6:39 am
Country: Taiwan
City: New Taipei City
Year: 2016

1290 SDR Crankcase breather reroute question

Post by MindTrainer » Thu Oct 18, 2018 12:08 am

hi I am wondering how to correctly reroute the crankcase breather to vent to the atmosphere.

By googling the system I found the below picture and wondering if the 1290 SDR has the positive
Crankcase valve (PCV) or Valve cover port system? And where is it physically on the bike?
Image

I probably will get a oil catch can between the crankcase and a small K&N filter or similar to vent to the air. Anyone know the hose internal diameter to use to connect the crankcase side?

Shall I add an one way valve somewhere? Not sure if the crankcase will suck the ugly muddy oil from the oil catch can back to the crankcase when it is at negative pressure.

I also found these type of the oil catch can (OCC), and wondering if any one know what does that little filter on the top do? Maybe I could use this type and just plug the outlet and the gas can vent to the air through that filter?
Image

Cheers!



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Slaine65
50cc
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Joined: Thu Nov 03, 2016 9:42 am
Country: Singapore
City: Singapore
Year: 2016
Colour: White
Location: Singapore

Re: 1290 SDR Crankcase breather reroute question

Post by Slaine65 » Sat Jan 29, 2022 4:42 am

Hi mate
Im from sg
i know im late on this post but did u figure out this issue?
i would have chimed in but ive had the same issue on 3 bikes so far all 1290s and
all with slightly different approaches......my latest squeeze is the RR and yes i built a discreet catch can for it because i discovered a decent amt of blowby on hard rides

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