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Roconroad
Posted on Friday, August 07, 2020 - 12:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

02 M2 cyclone Iím still ironing out issues with my m2. It has a catch can that needs to be drained every 60 miles or it spews oil on my boots and pants. If I run breather back into my force winder air filter will that effect the tune at all? Bike is running real well. Thanks
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89rs1200
Posted on Friday, August 07, 2020 - 10:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That sounds like a lot of oil. Condition is caused by pressure in the crank case.

Perhaps compression is down because of worn piston rings which is causing loss of pressure into the crank case.

recommend a compression check and pulling the covers off the heads and check the condition of the umbrella valves. Better yet, just replace them. They are 18 years old by now.
What also may help is to slightly enlarge the drain hole which is next to that umbrella valve. Allows for that oil spray to drain back to the motor quicker.
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Hawgford
Posted on Friday, August 07, 2020 - 05:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Are you runnin a different carb or breather than stock? these motors are head breathers and this is exactly what will happen if you have a clog. Also the rocker box gaskets will weep from pressure. the chrome crossover tube is notorious for causing this, the cylinders fight each other, you need 2 separate lines to the back of the air box.I would also look at the scavenging system because if some numbnuts used any kind of goop sealant inside its now gunkin up that system. Read your factory service manual....
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Roconroad
Posted on Saturday, August 08, 2020 - 10:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes carb is a mikuni 42 with a force wind filter. Breather line was cut and a rubber hose added to run to catch can. Sorry I should have pictures canít do it. Thanks David
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Mstrfrz
Posted on Monday, August 10, 2020 - 04:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I ran lines and a catch can from my heads on my X1 to AVOID oil to the intake: better air in and less fouling on the plugs and valves.

(Message edited by Mstrfrz on August 10, 2020)
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