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CAM question (TB)

388 Views 13 Replies 3 Participants Last post by  Motolombardo, 
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Has anyone installed the newest TB parts cam TBW9210 (contains cam sprocket TBW0645 and cam TBW1431)?
Website says remove the rear/right bearing for the z125 (RH side). I’m assuming the KLX has one and the Z does not since this cam is for both. I took the bearing off and it has a keyway where the cam rides in the bushing. I can’t see how this would work without carving out the bushing. *Edit- the bushing the cam rides in also has an oil passage hole. Asked TB and they said they are looking into this. See pics

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robgmod13
Motolombardo said:
Has anyone installed the newest TB parts cam TBW9210 (contains cam sprocket TBW0645 and cam TBW1431)?
Website says remove the rear/right bearing for the z125 (RH side). I’m assuming the KLX has one and the Z does not since this cam is for both. I took the bearing off and it has a keyway where the cam rides in the bushing. I can’t see how this would work without carving out the bushing. *Edit- the bushing the cam rides in also has an oil passage hole. Asked TB and they said they are looking into this. See pi
Motolombardo said:
Has anyone installed the newest TB parts cam TBW9210 (contains cam sprocket TBW0645 and cam TBW1431)?
Website says remove the rear/right bearing for the z125 (RH side). I’m assuming the KLX has one and the Z does not since this cam is for both. I took the bearing off and it has a keyway where the cam rides in the bushing. I can’t see how this would work without carving out the bushing. *Edit- the bushing the cam rides in also has an oil passage hole. Asked TB and they said they are looking into this. See pics
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Any news on cam Or did you just install?

cs
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M
Smoothed out the sharp edges of the groove and installed. Good so far. Top end tic is louder no matter how well the valves are adjusted but that is what it is.
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robgmod13
Motolombardo said:
Smoothed out the sharp edges of the groove and installed. Good so far. Top end tic is louder no matter how well the valves are adjusted but that is what it is.
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Awesome Thank you for quick response. How did you remove cam bearing
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robgmod13 said:
Awesome Thank you for quick response. How did you remove cam bearing
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Put the cam between vice jaws with the bearing on top of the jaws. Tapped the cam down and off the bearing using a 10mm socket
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robgmod13
Motolombardo said:
Put the cam between vice jaws with the bearing on top of the jaws. Tapped the cam down and off the bearing using a 10mm socket
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Thank you very much. Gonna try to salvage the day.(y)
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Kaw'ee
Looking at the lobes it looks like the TBolt logo (b) points towards the back of the motor. That's opposite of the race cams and could see someone not noticing that.
Was there any installation guide that comes with it and shows the correct direction for the cam gear timing mark direction onto the cam so its not 180* out ?

If this is the same kit ?

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robgmod13
Kaw'ee said:
Looking at the lobes it looks like the TBolt logo (b) points towards the back of the motor. That's opposite of the race cams and could see someone not noticing that. Was there any installation guide that comes with it and shows the correct direction for the cam gear timing mark direction onto the cam so its not 180* out ? If this is the same kit ? View attachment 27731
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Same kit. fired up and have a very loud ticking noise 2023 model
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robgmod13 said:
Same kit. fired up and have a very loud ticking noise 2023 model
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Mine is loud too. Tightened valve’s slightly lower than spec and they are still loud as fug
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robgmod13 said:
Same kit. fired up and have a very loud ticking noise 2023 model
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I emailed TB to see if stock specs should be used. I noticed on the big bore kit they reccomend less. They responded to my initial question stating that the groove was normal
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Kaw'ee
Sounds like the timing gear was put on 180* out/off
TBolt says the holes are off set and cant be 180* out but have seen a lot of posts saying otherwise so not sure what's up.

Get them to verify if the timing mark line on the timing gear gos on the same side as the TB logo side or opposite the TB logo .

I see it as backwards of the race head cams / see above post # 7
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Kaw'ee
Could also test it by put it at your current TDC setting and turning the rotor counterclockwise one revolution "Only" back to the TDC mark . Timing gear mark should be pointing backwards towards the motor and Not frontwards to the head timing mark

If the valves are tighter with no gap play then the timing gear is on correctly.
If the valve gap is looser then the timing gear is 180* out/off
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robgmod13
Motolombardo said:
Mine is loud too. Tightened valve’s slightly lower than spec and they are still loud as fug
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I got a reply from tb. told me to put valves at 3 degrees fir both still loud. for that response they dont know or care. so going to spend 300 on a good cam. I have modified many small and big bikes. Not sure what else ro think but grind or something is wrong. Thats for letting me know.
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robgmod13 said:
I got a reply from tb. told me to put valves at 3 degrees fir both still loud. for that response they dont know or care. so going to spend 300 on a good cam. I have modified many small and big bikes. Not sure what else ro think but grind or something is wrong. Thats for letting me know.
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TB said to try .002-.003 on both valves.
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