ScootDawg Forums - ultimate big valve head

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- - ultimate big valve head (http://www.scootdawg.net/showthread.php?t=53069)

That's the one I'm buying from pro power ride but two stroke.when I call places that sell chinese parts they don't no what to sell me.I was wondering where you get your parts.same scoot just mine will be two stroke

the two stroke version uses completely different parts get them at scrappydogscooters.com under 2 stroke performance parts its a minerelli clone type motor 1e40qmb

Quote:

Originally Posted by scootnwinn (Post 519000)

It looks like its rated for 250 degrees. I'm no expert but don't air cooled motors run nearly 300 degrees? No one has issues so I guess it works but looks like it is probably intended for use in liquid cooled vehicles...

My friend with a two stroke on the 49ccscoot forum recorded head temps in the range of 265°F to 340°F for WOT with different carbs.

I would link you there to the post but I dont know if its allowed or what on this forum. :shrug:

Just figured it is good relevent info showing that these "forced air" cooled motors can certainly run past 300 degrees.

Mean Motofino :tup:

would like to see that..i raced micro sprints and they were honda 250 2-stroke and we never got past 200-210. 300 i would think it would seiz up...but any-way i build kart motors briggs-raptor and never had any issue's with glyptal.......just saying..thanks.....buford.