M900 Cutting out - Page 2

CarloL · 31-03-2018, 08:09 PM

Was trying to figure out issue with the monster today , fuel pump works , bleed the float bowls, full of petrol (no water) , spark plug gap needed attention , set to .65 as per manual , still choking out with throttle, fie out the exhaust, pops N bangs from over fueling

I could not find the little gauze filter in the fuel line where it joins the T-piece between the carbs.

https://www.youtube.com/watch?v=g8_5VA_Y_kM

This was on top of the cylinder head , what ever it is , dropped down when I put it on its side stand

slob · 31-03-2018, 09:07 PM

Your mystery item looks like one of the rubber buttons that live between the cylinder fins to stop them ‘ringing’ at resonant frequency. they start out light grey and soft but end up hard and almost black.

CarloL · 31-03-2018, 10:00 PM

Quote:

Originally Posted by slob

Your mystery item looks like one of the rubber buttons that live between the cylinder fins to stop them ‘ringing’ at resonant frequency. they start out light grey and soft but end up hard and almost black.

Thanks! One of the lads said the same

Dukedesmo · 01-04-2018, 02:19 PM

Quote:

Originally Posted by slob

Your mystery item looks like one of the rubber buttons that live between the cylinder fins to stop them ‘ringing’ at resonant frequency. they start out light grey and soft but end up hard and almost black.

Indeed it does.

When I repainted the cylinders on mine - I took all of these out, don't know what difference they make to the noise? but best gone IMO.

Darren69 · 01-04-2018, 02:46 PM

That's almost certainly what it is. I had them on both my 750 and 900SS, they don't do much if anything at all really, except drop out especially if you have open pipes. Its probably some long forgotten EU regulation?

31-03-2018, 08:09 PM	#16
CarloL Registered User Join Date: Apr 2017 Location: Dublin Ireland Bike: M900 Posts: 298	Was trying to figure out issue with the monster today , fuel pump works , bleed the float bowls, full of petrol (no water) , spark plug gap needed attention , set to .65 as per manual , still choking out with throttle, fie out the exhaust, pops N bangs from over fueling I could not find the little gauze filter in the fuel line where it joins the T-piece between the carbs. https://www.youtube.com/watch?v=g8_5VA_Y_kM This was on top of the cylinder head , what ever it is , dropped down when I put it on its side stand Last edited by CarloL; 31-03-2018 at 08:13 PM..

01-04-2018, 02:46 PM	#20
Darren69 Transmaniacon MOC Join Date: Sep 2013 Location: Sutton In Ashfield Bike: Multiple Monsters Posts: 6,038	That's almost certainly what it is. I had them on both my 750 and 900SS, they don't do much if anything at all really, except drop out especially if you have open pipes. Its probably some long forgotten EU regulation? __________________ Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage

31-03-2018, 09:07 PM	#17
slob . Join Date: Jul 2003 Location: East London Bike: Multiple Monsters Posts: 9,715	Your mystery item looks like one of the rubber buttons that live between the cylinder fins to stop them ‘ringing’ at resonant frequency. they start out light grey and soft but end up hard and almost black.