massimo s Posted March 22, 2016 Report Share Posted March 22, 2016 Hello to all,I would like to simplify the oil breather tube system of my Montesa 4rt.There is currently a pipe from the engine rises towards the headstock and arrives in a white box, from which depart two tubes: one is a drain, and one goes to the throttle body.I want to delete everything, and bring the engine vent directly down, mounting a small filter to protect against impurities.It can be done ?Thank you Quote Link to comment Share on other sites More sharing options...
jimmyl Posted March 22, 2016 Report Share Posted March 22, 2016 Finish the breather under the head stock. Put white bottle in the bin Block the hole going into the air box Don't think I would take the pipe where you have indicated small filter is good idea. You can then take the relay of the bracket under the air box and fit it behind the headstock where the white tank came from 1 Quote Link to comment Share on other sites More sharing options...
massimo s Posted March 22, 2016 Author Report Share Posted March 22, 2016 Well tnks. Is there also any function in the original pipes system other than the environmental recovery of oil ? For example any "lubrification" of the intake system of throttle body, etc... In other hands: any disadvantage about this modification ? Tnks Quote Link to comment Share on other sites More sharing options...
jimmyl Posted March 22, 2016 Report Share Posted March 22, 2016 Not aware of any benefits - all 3 of mine have had this mod - been on 4rt nearly 10yrs. 1 Quote Link to comment Share on other sites More sharing options...
hulmie Posted March 22, 2016 Report Share Posted March 22, 2016 I wouldn't put it there, the Yamaha wr enduros had them there and if they cut out in water it would get drawn back up into the engine as it cooled Quote Link to comment Share on other sites More sharing options...
massimo s Posted March 22, 2016 Author Report Share Posted March 22, 2016 Tnks again, so pls where is better to put the vent pipe ( red line in my pic ) ? In the Beta enduro after modification usually the vent go up near fuel tank and go down near the base plate. Can I do the same ? Quote Link to comment Share on other sites More sharing options...
trial bike Posted March 22, 2016 Report Share Posted March 22, 2016 This is an interesting question. I was looking at the same thing on my bike recently. What is the white plastic "bottle" for? Does it serve any purpose? Quote Link to comment Share on other sites More sharing options...
massimo s Posted March 22, 2016 Author Report Share Posted March 22, 2016 I suppose that bottle is for condensate oil separation, just for environmental oil recovery.... 1 Quote Link to comment Share on other sites More sharing options...
gaz12349 Posted June 19, 2018 Report Share Posted June 19, 2018 On 3/22/2016 at 5:54 PM, jimmyl said: Not aware of any benefits - all 3 of mine have had this mod - been on 4rt nearly 10yrs. Hi Jimmy. Do you have a filter on either of the head breather pipe or the transmission breather pipe? I'm currently rebuilding my 2005 4rt and noticed the strage tank is missing and both pipes were just up at the headstock above the radiator. Quote Link to comment Share on other sites More sharing options...
jimmyl Posted June 19, 2018 Report Share Posted June 19, 2018 I just fit an in line fuel filter to stop and dirt getting sucked in Quote Link to comment Share on other sites More sharing options...
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