silly question,but its a thread hey!!

08-05-2006, 03:52 PM

The earth strap........from the engine casing to the frame........this is on early air-cooled modle monster.....tho maybe the same on water cooled models.......errrrrrrr......whats it earthing out?????

Thanks

manwithredbike · 08-05-2006, 04:03 PM

earthing strap is normally to bring the frame (which is normally connected to the negative terminal of the battery) to the same electrical potential as the engine. also found on cars.
so that all the electrical components have a clean return path to the negative terminal of the battery. some engines have rubber mountings etc

08-05-2006, 05:24 PM

ta,so if that wasnt connected.....(ie flapping around in the breeze) would that cause some electrical probs?????

Pedro · 08-05-2006, 10:04 PM

yeah, mine did just that. Found the nut floating around on the engine cases and it ran like a cabbage

Ped

manwithredbike · 08-05-2006, 10:16 PM

i'd imagine it'd depend on whether there was any other good metal to metal connections between the engine and frame like bolts etc. if not, like ped says it'd run like a bag of sh1te, bad spark etc

09-05-2006, 10:57 AM

Earth straps are also there to stop corrosion, if my physics serves me right. If two different metals are touching e.g. steel and aluminium, and power is running through them there will be a potential difference between them. Add water to this equation and you have a perfect recipe for electrolysis.

Just another reason to keep your nuts tightened :-)

manwithredbike · 09-05-2006, 01:46 PM

Quote:

Originally Posted by Somnambulist

Earth straps are also there to stop corrosion, if my physics serves me right. If two different metals are touching e.g. steel and aluminium, and power is running through them there will be a potential difference between them. Add water to this equation and you have a perfect recipe for electrolysis.

Just another reason to keep your nuts tightened :-)

good point: Galvanic action, electrochemical degradation, electrolytic corrosion etc etc -- keep your nuts well tight!!
extreme example of the process is on boats and metal bridges and the likes where they fit a 'sacrificial anode' which takes most of the corrosion instead of the structure. (useless information supplement)

mmm.. must do some work really

09-05-2006, 02:11 PM

fitted earth strap....cool.

08-05-2006, 03:52 PM	#1
sjr999r Guest Posts: n/a	silly question,but its a thread hey!! The earth strap........from the engine casing to the frame........this is on early air-cooled modle monster.....tho maybe the same on water cooled models.......errrrrrrr......whats it earthing out????? Thanks

08-05-2006, 10:04 PM	#4
Pedro Ciao, come stai? Join Date: Apr 2003 Location: Somewhere Bike: Multiple Monsters Posts: 4,157	yeah, mine did just that. Found the nut floating around on the engine cases and it ran like a cabbage Ped __________________ M900 - 1993! Monster 1200R!

08-05-2006, 10:16 PM	#5
manwithredbike aka Phil Join Date: Nov 2005 Location: derry Bike: M900 Posts: 376	earth i'd imagine it'd depend on whether there was any other good metal to metal connections between the engine and frame like bolts etc. if not, like ped says it'd run like a bag of sh1te, bad spark etc

09-05-2006, 10:57 AM	#6
Somnambulist Guest Posts: n/a	Earth Strap Earth straps are also there to stop corrosion, if my physics serves me right. If two different metals are touching e.g. steel and aluminium, and power is running through them there will be a potential difference between them. Add water to this equation and you have a perfect recipe for electrolysis. Just another reason to keep your nuts tightened :-)

09-05-2006, 02:11 PM	#8
sjr999r Guest Posts: n/a	fitted earth strap....cool. Last edited by sjr999r; 09-05-2006 at 02:38 PM..

08-05-2006, 04:03 PM	#2
manwithredbike aka Phil Join Date: Nov 2005 Location: derry Bike: M900 Posts: 376	earthing strap is normally to bring the frame (which is normally connected to the negative terminal of the battery) to the same electrical potential as the engine. also found on cars. so that all the electrical components have a clean return path to the negative terminal of the battery. some engines have rubber mountings etc

08-05-2006, 05:24 PM	#3
sjr999r Guest Posts: n/a	ta,so if that wasnt connected.....(ie flapping around in the breeze) would that cause some electrical probs?????