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Discussion Starter #1
Coming up the road today in fifth & was losing rpm, happen in fourth third & second. I have 1800 miles

on my bike. I pulled over. I went & got my trailer & got the bike home. I put it fifth & tried to push it

but tire locked up. Pull the spark plug it looked great. Pull the oil filter look great. Do you think the cam might be stuck?

Any suggestions would be great. I am shocked that it happen. Plus it won't turn over, it just clicks. Mike
 

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Coming up the road today in fifth & was losing rpm, happen in fourth third & second. I have 1800 miles

on my bike. I pulled over. I went & got my trailer & got the bike home. I put it fifth & tried to push it

but tire locked up. Pull the spark plug it looked great. Pull the oil filter look great. Do you think the cam might be stuck?

Any suggestions would be great. I am shocked that it happen. Plus it won't turn over, it just clicks. Mike


What year is the bike? Have you checked you batteries voltage, and also are the battery terminals clean and tight? How about your oil level?
 

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Discussion Starter #3
It is 2008. Oil level is right on, changed oil 25 miles ago. What I was thinking since it is hard to move the bike in fifth gear

something has to be locked up. I tried to move the bike with the clutch out. I guess something could come loose in the top

end, i am really disappointed. Mike
 

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Does it start as is? Idle good? Use the correct oil filter?



Mine will lock the tire in 5th too if I'm near TDC. Or if the rear tire can't grab enough traction.



There's a free pdf of the manual in the technical service folder, download and print it. If you don't want that, eBay is an option.
 

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Discussion Starter #6
Yes it did, before this happen. Never had a problem. It ran great. What would you suggest, take the top end

a part? Mike
 

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You can pull the cam without having to removing the head. Saving yourself a gasket.

You could check the valve clearances and see where they are sitting. The locknut could have came loose, valve clearance goes out of spec and you get your running condition.

You could do a compression test or leakdown test to test the piston/rings.

You have more options than tearing it apart.



Maybe just a tank venting issue?



Does it idle now? Meaning, after you had this issue.
 

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Sure it's not the dreaded wrong oil filter issue is it? The look-alike, fit-alike oil filter that doesn't have the holes for allowing oil into the top end? Sure sounds like it
 

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I think Fourcycle is heading in the right direction, I would start by removing the oil filter and checking it for the holes (see thread on this forum). If it doesn't have the holes, then you have blocked the oil flow and that would sieze the engine. The second item is regarding your oil change, did you open the top end bleeder screw and check for oil at the top end before riding? If not, that can cause an air lock to the upper section of your engine.

Remove the spark plug and follow the thread on here for valve setting, this will take you to the part on how to find TDC. If you can turn this nut, then your engine is not siezed, but if it is solid, you have found your problem.

I dont know how mechanical you are, but for most items the guys on here will talk you through just about anything, however, if you have cooked your engine, you are probaby best to have a professional rebuild done in order to get a strong and long lasting engine. Dont be afraid to ask questions and if you have a camera to take pics as you disassemble, it can make the reassembly much smoother.



Keep us posted on your progress and we will all do our best to help you get up and riding again, Chris
 

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Discussion Starter #12
I am looking at the oil filter I was given no four holes. It s a cardboard filter with out holes, how could i miss that.
 

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You're not supposed to be required to know that. It's a bad quality control issue from yamaha. And it's burned people in the past. When someone walks in with a correct part number and gets the wrong part there may be enough evidence to go after Yamaha for it, but who knows how much that would cost.



Supposed to look like this:



 

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Discussion Starter #17
Looking for tdc. Will I need to take thw side plate off below the cam shaft, so I can see it? I tried looking for it in the forum it alwasy says,

not enough characters. Mike
 

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There are three marks on your flywheel under the side cover inspection hole, one of them is a "t", I think its the one towards the rear of the machine when your looking at the three of them, line it up with the pointer and that is TDC.
 

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I am looking at the oil filter I was given no four holes. It s a cardboard filter with out holes, how could i miss that.
If you were given a wrong/faulty part that caused engine problems it might be a good idea to approach the supplier and see if they are willing to help with repairs, they are responsible and if necessary the threat of a lawsuit may make them realize that. Talk to the the boss not the parts guy. Sorry to hear about the problems.
 
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