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JacobSlabach

Honda Fourtrax bring back from the grave

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looks like the cam jumped one tooth back.  So just take the tensioner out and set it forward?

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Yes but you have to check the tensioner or maybe the chain is stretched.  

 

If it jumps again and  any further the valves will collide with the piston and it’s over.   

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the chain had good tension on it- not sure how to reset the tensioner on this motor tho- never seen a tensioner like it before.  Also there isnt enough slack in the chain to jump it back like usual...how do I get more slack on the chain without taking the whole motor apart?

btw someone was using their brain with this little groove in the flywheel bolt plug-  I couldnt get the screwdriver to turn it without slipping so I just put in in the groove and gave it a tap with a hammer and boom, the plug turns loose.  great trick!

Picture0509191756951.jpg

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There should be a tensioner bolt ? Loosen and reset.  But if it’s tight I don’t honk it would jump.  Are you 100% sure it jumped ?

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there were too marks on the sprocket that lined up with the head, no marks on the head.  I took the cam sprocket bolts off and got enough slack to adjust the chain and put everything back together, still ticks, but worse now.

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got it back together and started it up and it ticks worse now than it did before, thinking I dont have the timing right

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It may have been correctly timed in the first place.  Did you check the manual ? Maybe reset it to where it was. But check the manual about the alignment before yo do all this.  It’s important. 

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eh sorry- computer issues up there:wacko:  meant to say yes that looks like the head on my bike

so thats literally exactly how i checked timing- t mark on the flywheel and marks on the cam sprocket.  I'm thinking the tensioner is shot letting it jump time or the valves are incorrectly adjusted.  btw, I was wondering how you find certain info in the service manuals?  I find it hard to find the info I'm looking for and get lost lol

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