Are you sure the cam wasn’t in a position were it had a valve open ? If so you won’t be able to turn the cam until you released the spring pressure .
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Are you sure the cam wasn’t in a position were it had a valve open ? If so you won’t be able to turn the cam until you released the spring pressure .
78 atc 90/180cc Dickson Full Suspension
76 ATC90/180cc Nicholson
77 atc 90 Dickson Full Suspension
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87 atc 125m stock
84 atc 200x Curtis Sparks
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The head is off with the valves still in it. Put the head up right and put some fluid into the ports to see if they are leaking. Quick test. See if the valves are bent.
As you have not had much time running this engine. I am sure there was some noise before this happened. Not sure. Helmet. Exhaust noise. You may have not heard some issues going on.
Could it be possible that the oil filter was in the wrong way. Top end started to seize and caused this(?) Yes. I know the bolts backed out. But to break the ear off and have 1 still in 1 piece.
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The oil filter is in correctly. The motor did start to make noise before this happened. I actually re-checked valve clearance before it happened because I thought it was them ticking and I was not sure if I had been unobservant all day or if it had just started.
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The fluid I put in the ports did not leak through the valves. Here is the top of the piston.
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The day begins with 3WW
I just remembered that those 350X timing chains are much more stout than Honda's 200cc design so it's probably ok as long as it looks good. The dinky chains in Honda 200 and 250 OHC engines would stretch much easier. So disregard what I said earlier about replacing that unless it looks nicked up
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The day begins with 3WW
Piston looks clean. You might have gotten lucky.....if it belonged to me, it would have bent valves and maybe even dropped one and punched it thru a piston like my XR250R did once. Just my luck
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I think I am going to just go ahead and tear it back down to clean everything thoroughly.
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I tend to always double check mine before I put the oil filter cap on. If you were running on OEM oil filter it would have come with instructions to illustrate the direction the oil filter is to be installed as well as the oil fitler's housing is engraved with the directions in which the oil fitler must go. I have a couple of Emgo on stock and those do not have any of the previous mentioned info on them. Here is a picture of the OEM oil filter.Originally Posted by DDQ
- 1985 Honda 250SX
- 1985 Honda 350X
- 1985 Honda 350X
- 1986 Honda 250R
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Yes it has an oem filter with the engine side stamped.
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Today I have been reassembling the motor. I bought an oem cam off ebay but noticed this marking on it. Is it still safe to use with stock valve springs?
Power User
The day begins with 3WW
According to webs site the 180 grind doesn’t require HD springs . Should be a mild upgrade from the stock cam . Good score .
78 atc 90/180cc Dickson Full Suspension
76 ATC90/180cc Nicholson
77 atc 90 Dickson Full Suspension
84 KLT 110/123cc Powroll Racer from 80s
87 atc 125m stock
84 atc 200x Curtis Sparks
84 atc 200x Powroll My race bike from 80's
83 atc70/108cc Powroll blue Xmas Special
81 atc185s HP-ATC full suspension
Performance Shop is Open PM me for Service
My Feedback http://www.3wheelerworld.com/showthr...ck+shortline10
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Awesome, thanks!
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Should I adjust the valves with this web cam the same way and to the same gap the manual says to?
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No, adjust them to WEBs spec, just give them a call or look it up in their PDF...
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Thanks. I called and they said .004 instead of .003
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