Checking for intake leak.
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Road Warrior
Joined: Jul 2014
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From: VA
Checking for intake leak.
I have a reason to thing I might have a slight intake leak. It's really hard to spray anything around the intake on these M8's because there is so much stuff in the way. I have read a tip for checking for a leak but have read two different versions. Pull in the clutch and close the throttle. One source said the revs should drop to zero if there is NO leak. That makes sense to me. The other version said if the revs drop to zero there is a leak. So which is it. Appreciate any input on this or any other tips
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Joined: Jan 2019
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From: Nunya.
Like 702 aksed(lol) , a high idle could mean an air leak in the intake.
Spraying WD around a bike to find an air leak is a good thing , it always makes bike bits look shiny new.
An air leak will pop or explode under acceleration and possibly pop and fart on decel depending on where the leak is.
An erratic idle could be an intermittent air leak or electrical fault.
Spraying WD around a bike to find an air leak is a good thing , it always makes bike bits look shiny new.
An air leak will pop or explode under acceleration and possibly pop and fart on decel depending on where the leak is.
An erratic idle could be an intermittent air leak or electrical fault.
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Road Warrior
Joined: Jul 2014
Posts: 1,584
Likes: 520
From: VA
Bike idle is stable. Isn't high. It sounds like it is running slightly rough at idle. Fuel Moto suggested I check for an intake leak. There is so much stuff in the way I can't even see a lot of the intake. Much less spray anything around the seals.
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Joined: Mar 2018
Posts: 94
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From: Ruskin fl.
Maybe there is nothing wrong, that 22x cam will have alot more idle lope than a stock M8.
Road Master
Joined: Nov 2011
Posts: 762
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From: Timnath, CO.
I put a hose on the spout of a propane torch to make it longer and more flexible to get in and around the intake.
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Road Warrior
Joined: Jul 2014
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From: VA
That's true. And likely the case.
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From: Nowhere
I got same cam installed by FM idle is set at 950rpm just so you know. I also used torch to check for leaks on my previous bikes it is not messy.
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