74Nitro
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The timing mark picture isn't very clear, but I don't think you may be on the right mark.
74Nitro
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Good video right from yamaha
STAIN
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I would try to very carefully rotate that intake cam counter clockwise in order to get those teeth to re-engage. Try to hold the exhaust cam while rotating the intake cam. Don't force anything. It looks like that cam is out the distance that the chain has climbed up on the gears. You may get lucky and have it slid back in timing.That's a great idea @YukonMP!
Okay so here's where I'm at. We're at TDC and the intake gear is off as shown in the picture. Now how do I go about adjust this?
Edit: I'm noticing as you can see in the picture that the chain does not look like it's seated on the exhaust gear.
STAIN
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What make me wonder is how does the chain climb the gears if the tensioner has come out and locked?
Unless the tensioner is operated by oil pressure only.
A lot of tensioners are oil pressure activated but also lock as they continue to come out.
like this
maybe that tensioner does not have a lock?
Unless the tensioner is operated by oil pressure only.
A lot of tensioners are oil pressure activated but also lock as they continue to come out.
like this
maybe that tensioner does not have a lock?
74Nitro
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I don't think it is that type. It's the threaded tensioner with torsion spring.What make me wonder is how does the chain climb the gears if the tensioner has come out and locked?
Unless the tensioner is operated by oil pressure only.
A lot of tensioners are oil pressure activated but also lock as they continue to come out.
like this
View attachment 166372
maybe that tensioner does not have a lock?
I'm thinking he should use a new one. If this is a 2009 Nytro, the part # updates which is sometimes a sign that the party has been improved upon.
2009 Yamaha FX NYTRO RTX (FX10RTRYL) Camshaft Chain
Shop online for OEM Camshaft Chain parts that fit your 2009 Yamaha FX NYTRO RTX (FX10RTRYL), search all our OEM Parts or call at 269-385-1540
www.cyclepartsnation.com
max rolph
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I agree with this, lock exaust cam where it is now and try rotate intake ccw to that 1 tooth alignes as long as your mark on mag is still lined up, make sure tensioner is removed first... put zip tie on exhaust cam to hold chain dwn on it.I would try to very carefully rotate that intake cam counter clockwise in order to get those teeth to re-engage. Try to hold the exhaust cam while rotating the intake cam. Don't force anything. It looks like that cam is out the distance that the chain has climbed up on the gears. You may get lucky and have it slid back in timing.
74Nitro
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Oil pressure also. Watch the video at 4 minute mark.What make me wonder is how does the chain climb the gears if the tensioner has come out and locked?
Unless the tensioner is operated by oil pressure only.
A lot of tensioners are oil pressure activated but also lock as they continue to come out.
like this
View attachment 166372
maybe that tensioner does not have a lock?
STAIN
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I would try it first without removing the tensioner and see if it falls in. Dont think it would hurt to try. That tensioner is a pain to get out.I agree with this, lock exaust cam where it is now and try rotate intake ccw to that 1 tooth alignes as long as your mark on mag is still lined up, make sure tensioner is removed first... put zip tie on exhaust cam to hold chain dwn on it.
STAIN
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Yeah, looks like oil pressure with light spring tension but no ratcheting lock mechanism.Oil pressure also. Watch the video at 4 minute mark.
That is probably why it is able to climb that chain on top of the gears. When you spin the motor backwards it looks like it compresses' the tensioner letting the front side of the chain slack.
Don't like that design......one with a ratcheting lock would be better and eliminate the possibility cam chain jumping if the motor spun backwards.
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What is the downside to the manual tentioner?
STAIN
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I would say nothing except the location of that tensioner is a pain to get to.What is the downside to the manual tentioner?
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There's a lock mechanism on the tensioner that will only allow it to move in so far.
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Does it need constant attention? Or once a year kind of thing?I would say nothing except the location of that tensioner is a pain to get to.
74Nitro
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How many miles are on this machine?Thanks @Turboflash. I'm working on pulling the valve cover now. I'm very well versed on everything Nytro except for the internals. What am I looking for once the cover is off?
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