12r1

Expert Class
Posts: 390
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posted May 27, 2006 04:46 PM
velocity stacks...even more confused....
I could never get the blue Muzzy stacks to fit right in my '00 12R, that i have since parted out. I figured since I can't sell em, I may as well try them in the '02 12 that I now have.
I tried swapping the left stack, and found the stack will not go in this 12 either! The stock rubber stack is actually S shaped too go from the airbox to the tb's! Off at least 4-5 mm's!
I guessed my '00 may have had sagging motor mount bushings, from a few years of hard riding???, but now this one too??, This '02 only has 8k easy miles. Are all of you just jammin' those stacks in there, and calling it a day?? no wonder there are such minimal gains, if any. The stacks aren't even sealing in the airbox! Theres a HUGE leak. Ram air becomes non-existant also. I posted stack problems on the boards before, but found nobody else with such issues. How can this be??
I'm completely baffled by this...........
jeff
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dougmeyer

Needs a job
moderated
Posts: 2713
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posted May 28, 2006 07:08 AM
Must be an engine /frame alignment issue. The stacks are CNC'd in large batches and it;s highly unlikey that a single one (or a small amount) would be incorrect. But 4-5 mm? I never saw one that bad. Keep in mind that anly a small amount of movement of the engine around the top engine mount bolt yields quite a bit of movement at the top of the TB's.
One of the reasons all these parts are rubber in the first place is to account for mismatch. Dunno, I guess you'll have to loosen and jack it and see what happens.
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VincentHill

Needs a life
Posts: 6520
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posted May 28, 2006 09:02 AM
Same as What DM Said for all Bear Stacks also. It almost sounds like the TB's are cocked in the Mounts causing the non alignment of the stacks
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12r1

Expert Class
Posts: 390
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posted May 28, 2006 04:13 PM
Edited By: 12r1 on 28 May 2006 17:17
AAARRRRGGGGHHHHH...............went through this with the '00... motor loose/tight/jack it up/ tighten....they just flop back down where they want to. I also thought, if the engine was that much low, the bodywork would'nt line up as nice.The '02 has a better looking front engine mount, thought it would hold it up wher it should be..oh well. The best running 12's definetely have it all lined up nice. I value both your opinoions very highly, thankyou.
Anyone want 'em??
jeff
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NOX
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted May 29, 2006 05:21 PM
mine was no prob........, user error?
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12r1

Expert Class
Posts: 390
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posted May 29, 2006 07:21 PM
Wish it were that easy...
Possibly I'll try to loosen the tb/engine boots, line it all up,and tighten the boots. Seems you can't get to the clamps without dropping the engine.
jeff
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