| Author |
Message |
    
Claytons4u
| | Posted on Sunday, January 01, 2012 - 07:19 pm: | 
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i have a m2 cyclone which has snapped 4 sets of front engine mount bolts over the last 3yrs or so,is this common and does anyone know a fix? |
Cactusjack578
| | Posted on Sunday, January 01, 2012 - 07:33 pm: |
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Check all your other engine mount bolts and your isolators.There may be something else that's loose or broken that's causing enough vibration that results in the broken front mounting bolts. That or your stunt riding is very demanding. |
Claytons4u
| | Posted on Sunday, January 01, 2012 - 07:46 pm: |
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motor was out 1000k's ago,new front mount |
Harleyelf
| | Posted on Sunday, January 01, 2012 - 09:08 pm: |
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Does the same side go first every time they fail? Could some previous owner adjusted the tie-bars that should never be adjusted? |
Claytons4u
| | Posted on Sunday, January 01, 2012 - 09:51 pm: |
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yes same side first,noticable vibration difference through bars but both must have gone close this time as it was on a short (200klm)ride.only have bottom tie bar been considering putting top tie bar on to see if this helps it has frame mount and mount on y yoke for this i think |
Harleyelf
| | Posted on Sunday, January 01, 2012 - 10:46 pm: |
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OMG!!! Did you just say you are running with a tiebar missing? They are BOTH required to keep the motor in a plane as it moves up and down to the limit of the front isolator. You must install the missing tiebar before your next safe ride. It is a very important part. |
Claytons4u
| | Posted on Sunday, January 01, 2012 - 11:00 pm: |
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sorry to freak you harleyelf,it's never had the top tie bar since i've owned it and i've probably done 30,000k's |
Harleyelf
| | Posted on Sunday, January 01, 2012 - 11:52 pm: |
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Here's the deal: your rear isolators hold the rear of the motor/transmission level. The front isolator lets the motor move up and down to avoid transmitting that vibration to the frame, handlebars, and rider. The drive sprocket is only on the right side of the motor. Every time you accelerate, the motor tries to twist to the right, and the rear isolators have no objection to that motion because they are rubber. The two front tie bars hold the motor assembly from twisting whether to the right with acceleration or to the left with deceleration. Without one or both of them your front mount or its bolts are at risk of sustaining stresses in direction they are not designed to survive. Have you a service manual? This stuff is covered in there. |
Claytons4u
| | Posted on Monday, January 02, 2012 - 01:07 am: |
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understand sort of,when you talk tie bars do you mean the upside down y which bolts to the front head or the tie that goes from the oil filter housing to the frame.sorry i don't have a service manuel
(Message edited by claytons4u on January 02, 2012) |
Claytons4u
| | Posted on Monday, January 02, 2012 - 01:11 am: |
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the one from the oil filter housing to the frame is what i'v been calling a tie bar also known as an engine stabilizer |
Bluzm2
| | Posted on Monday, January 02, 2012 - 10:07 am: |
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James,
The M2's didn't come with the "top" tie, the X1 and S3 (I think) did.
All the mounting points are on the M2, it just didn't come with the tie.
The one I'm talking about it the one that attaches to the motor mount and the frame, not the one down by the oil filter.
Brad |
Harleyelf
| | Posted on Monday, January 02, 2012 - 10:57 am: |
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Oh, sorry to spread my ignorance. I thought the M2 and S3 shared motor mount geometry. Seems like leaving one off will increase twist; can he install an S3 part? |
Claytons4u
| | Posted on Monday, January 02, 2012 - 03:33 pm: |
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guys thanks for all your help,being able to throw the problem out there and your input has reafrimed what i was suspecting all along, i need to install a top tie.cactasjack was probarly on the money about the riding style
(Message edited by claytons4u on January 02, 2012) |
Bluzm2
| | Posted on Tuesday, January 03, 2012 - 10:45 pm: |
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Yes, a X1 tie bolts right up.
This was discussed some time ago, final consensus was that it did improve handling while doing aggressive riding however it did increase the vibration level a bit.
Since the M2 is a more "standard" bike most felt it wasn't worth the extra vibes since most M2's aren't pushed as hard as the X1 was intended. |
Claytons4u
| | Posted on Thursday, March 01, 2012 - 11:30 pm: |
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update:fitted top tie and a noticeable difference,bike felt taunter,overall less vibration but more through the pegs,i used to get numb hands a lot now only at lower speeds or a lot of down hill riding.
just did a 1100klm ride on the weekend with a lot of tight stuff and bike went awesome. |
Harleyelf
| | Posted on Friday, March 02, 2012 - 06:11 pm: |
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Good to hear. Keep safe, and keep us updated on your bike's state of health. |
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Front engine mount bolts