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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
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#1
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2006 EC 200 Cylinder head Issue???
Doing a pretty thorough refresh of my recently acquired EC 200. Cylinder head was not looking healthy, so I ordered a replacement from Motocross Center. Ordered part ME200216000, which according to parts list is correct. New head showed up today and low and behold it is quite a bit smaller than the one that is currently installed. Current head is marked with ME25-30916000, which turns up nothing in parts list or google search. Anybody offer an assistance? Part number is similar to the 250 head, but not an exact match. Any help is greatly appreciated.
Old on right. New on left. Thanks Ken |
#2
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I just checked the number on a 2004/2005 200 head and it matches your new one MI 1600000.
Your head seems to be a 250 head. http://www.gasgasrider.org/forum/showthread.php?t=2112 You may have a 250 engine in your bike. The 250 is a direct swap for the 200. |
#3
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Looks like you have a 250 or 300 not a 200
Measure the piston. That will Tell the size 200 is 62.5 mm 250 is 66 mm 300 is 72 mm |
#4
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What does, not looking healthy mean?
Evidence of debris damage? As it happens machining the head for the right squish and shape removes quite a bit of metal so could repair most not crazy violent damage. RBor suitable tuner could perform or assess.
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'07 EC300 GG '14 TXT250 GG '? 496 CPI Cheetah RZ/RGV hybrid '22 765 Street Triple RS '21 XTrainer '69 Stinger T125 Suzuki '23 TRS 250RR (it's a Trials thing) |
#5
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Quote:
Thanks Ken |
#6
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I would probably repair the spark plug thread with a helicoil if all else on the head is good.
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2011 EC250E |
#7
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^^^^^ This is the direction I would go as well.
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Rick 99 EC 200 06 RM 250 AMA D36 375X OTHG 375S ***Thanks for the support : Twin Air /O'Neil Racing / Race 100% / Matrix Concepts / ODI / Mika Metals |
#8
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Quote:
Sent pics of the difference in size to MX Center. Anybody has a 200 head laying around to get some dimensions? Diameter and bolthole to bolthole? |
#9
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Measure the protruding lip (the part that sticks into the cylinder) on both heads and compare. The 200 has a 62.5mm diameter, the 250 has a 66, and the 300 has a 72 (IIRC).
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Phil (New bike pending...) |
#10
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What is stamped on the side of the motor in front of the shiftier? As stated you may have a 250/300 motor in it or someone mite have put a 250/300 top end on the 200 bottom. Get the calipers out.
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02 EC 200 03 MC 250 88 VT 800 01 TXT 280 |
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