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<blockquote data-quote="cutting torch" data-source="post: 6496" data-attributes="member: 134">Now for the cooling of the beast.....The 500 has a series cooling circuit, and the 250 is a parallel cooling circuit. I need to use the 250 system since it fits the chassis (just like stock!<img src="https://www.dirtbikeaddicts.com/static/images/smilies/busted.gif"&nbsp; class="smilie" loading="lazy" alt=":busted:" title="Busted&nbsp; &nbsp; :busted:" data-shortname=":busted:" />). I'll describe how each system flows, starting at the water pump inlet.500:Water pump inlet, to wp outlet, to right side of jug, up through jug to head, out of head on the left side, to bottom of left rad, from top of left rad to top of right rad, from bottom of right rad back to the water pump inlet. This circuit is in series since the coolant flows through one radiator, then flows through the other.250:Water pump inlet, to wp outlet, to rear side of jug, up through jug to head, out of head on the top rear WITH TWO OUTLETS going to the top of each rad, through both rads to the bottom of both rads, and back to the water pump inlet. This is parallel since the coolant flows through both radiators at the same time.Just in case anyone thinks I am belittling them by spelling out the differences between series and parallel, remember that there are some people that just never knew this. It's for thier benefit. So <img src="https://www.dirtbikeaddicts.com/static/images/smilies/tongue.gif"&nbsp; class="smilie" loading="lazy" alt=":P" title="Tongue&nbsp; &nbsp; :P" data-shortname=":P" />.Next post has pics!torch</blockquote>

[QUOTE="cutting torch, post: 6496, member: 134"] Now for the cooling of the beast..... The 500 has a series cooling circuit, and the 250 is a parallel cooling circuit. I need to use the 250 system since it fits the chassis (just like stock!:busted:). I'll describe how each system flows, starting at the water pump inlet. 500: Water pump inlet, to wp outlet, to right side of jug, up through jug to head, out of head on the left side, to bottom of left rad, from top of left rad to top of right rad, from bottom of right rad back to the water pump inlet. This circuit is in series since the coolant flows through one radiator, then flows through the other. 250: Water pump inlet, to wp outlet, to rear side of jug, up through jug to head, out of head on the top rear WITH TWO OUTLETS going to the top of each rad, through both rads to the bottom of both rads, and back to the water pump inlet. This is parallel since the coolant flows through both radiators at the same time. Just in case anyone thinks I am belittling them by spelling out the differences between series and parallel, remember that there are some people that just never knew this. It's for thier benefit. So :P. Next post has pics! torch [/QUOTE]

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