cam timing

sweet got it fixed.come to find out i bought a used part that the lifters set in and it was the wrong 1 for my 4 wheeler .i took the rockers out of that 1 put in my old 1 and wow i,m happy.thank you all so much for all your help

Glad to here that man.Have fun riding again.

Great. Glad you got her fixed.

Yaaayyy another succsess story for the forum!!!! you know it's extremel rare that we have a DOA Honda up here I have noticed this.

yeah i can see why ,you all no your hondas like no other.i,m just glad you all were able to help me.i really apprictiate it.
had i sent it to my local dealer i,d had to take out a second morgage lol

I am doing this procedure right now an a 91 fourtrax 300. I didnt realize this when I took the engine apart, but with the punch mark on the cam sprocket up , the cam lobes are facing up. I never removed the sprocket from the cam. is this going to cause problems ? also how do I know for sure that it is on the compression stroke? thanks ahead of time for the help !!!

derekb45 said:

I didnt realize this when I took the engine apart, but with the punch mark on the cam sprocket up , the cam lobes are facing up. I never removed the sprocket from the cam. is this going to cause problems ?

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It doesn't really matter, since the crankshaft turns two revolutions to every, one revolution, of the camshaft. I would unbolt the cam sprocket and put the punch mark up, with the lobes facing down, anyway, since that's how it's supposed to be.

also how do I know for sure that it is on the compression stroke?

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The position of the cam determines whether or not it's on the compression stroke, so all you have to do is put the piston on TDC by aligning the "T" mark on the flywheel and then just put the cam in with the lobes facing down and the punch mark straight up or down. It doesn't really matter if the punch mark on the cam is up or down. Lining up the two lines on the cam gear with the top edge of the head is all that matters.