Wizard
Member
I'm a mech. engineer (hands on is how I learn, books seldom help), I own 3 SRX's, I've owned an SRX since '02 and I bought my newest one (an '01) in 2011. I've had each apart and back together more times than I'd like to remember so suffice it to say I can fix them when something breaks, but I simply don't have a good enough understanding of clutching. I've searched and read a lot (as in hours and hours) of clutching posts but haven't found my specific issue, persay, so I'll do my best to describe it in hopes of getting a fresh perspective and some new ideas about how to improve it.
First, the good, my '01 has a pretty fresh top end (redone in 2013; compression is still 135+ across all 3), carbs are clean and set to specs, plugs are the right color, PV's set and operational, new Yamaha belt sitting a tad above secondary; pretty much everything "looks" right which, imho, means clutching is where I need to do some work. Stock gearing, good track; 1" lugs/144 studs, good bearings all around, stock secondary and a slightly modified primary with a thunder shift kit I've tinkered with since a couple years after getting my first SRX. In tight and wind'y trails, no one can get away from me, I come off the line and out of the corners great; I snap right up to 8600 RPM and stay there pretty well. When I'm riding lower MI trails I have a ton of fun, but that's not good enough because sometimes we hit a lake or head to the UP and then I feel like I'm giving up way too much to everyone else and it's just so damn frustrating!!!
So, onto my problem; I only climb quickly to 80 and then it takes a while to inch up toward 90, maybe 95 if there's enough trail. Yesterday we had nice mid twenty temps (cooler after dark), smooth trails and very few other riders so I was able to really pay attention to my gauges and here's what I experienced the whole 170 miles; as I'm climbing to speeds above 80, my tach slows down to about 8K telling me (with my limited understanding) that I have too much weight on the tips of my primary weights. Or is it; I mean could it be something else, could it be ANYthig else and if so what?
Additionally, when I back off to 3/4 to 2/3 throttle and cruise along at 60 to 70 and then go WOT, I only wind back up to an even 8K, she bogs a bit and won't climb nearly as high in speed. Only way to get back up in speed is to slow down to 50 and then go WOT and it acts the same as if I'd done it from a lauch; up to 8600 and then slowly back down. Again I ask, what could it be besides tip weight because based on what I'm seeing from other posts, I feel like I'm already too light out there as it is. Could this be a backshift issue? Could it be something else clutch related entirely?
Based on what I've read, I plan on using the sharpy trick to see how far they're moving and I plan to inspect the weights and rollers again to see if there's any wear, but I know they looked good last time I adjusted weights and I know my shims are tight so the weights aren't getting sloppy in there. I could take photos and/or report back with other findings, actual weight of weights, screws and washers, etc, but what I want to hear from you guys is where else to look and what else to consider so I can look at and hopefully eliminate some other variables.
As always...thanks in advance!
First, the good, my '01 has a pretty fresh top end (redone in 2013; compression is still 135+ across all 3), carbs are clean and set to specs, plugs are the right color, PV's set and operational, new Yamaha belt sitting a tad above secondary; pretty much everything "looks" right which, imho, means clutching is where I need to do some work. Stock gearing, good track; 1" lugs/144 studs, good bearings all around, stock secondary and a slightly modified primary with a thunder shift kit I've tinkered with since a couple years after getting my first SRX. In tight and wind'y trails, no one can get away from me, I come off the line and out of the corners great; I snap right up to 8600 RPM and stay there pretty well. When I'm riding lower MI trails I have a ton of fun, but that's not good enough because sometimes we hit a lake or head to the UP and then I feel like I'm giving up way too much to everyone else and it's just so damn frustrating!!!
So, onto my problem; I only climb quickly to 80 and then it takes a while to inch up toward 90, maybe 95 if there's enough trail. Yesterday we had nice mid twenty temps (cooler after dark), smooth trails and very few other riders so I was able to really pay attention to my gauges and here's what I experienced the whole 170 miles; as I'm climbing to speeds above 80, my tach slows down to about 8K telling me (with my limited understanding) that I have too much weight on the tips of my primary weights. Or is it; I mean could it be something else, could it be ANYthig else and if so what?
Additionally, when I back off to 3/4 to 2/3 throttle and cruise along at 60 to 70 and then go WOT, I only wind back up to an even 8K, she bogs a bit and won't climb nearly as high in speed. Only way to get back up in speed is to slow down to 50 and then go WOT and it acts the same as if I'd done it from a lauch; up to 8600 and then slowly back down. Again I ask, what could it be besides tip weight because based on what I'm seeing from other posts, I feel like I'm already too light out there as it is. Could this be a backshift issue? Could it be something else clutch related entirely?
Based on what I've read, I plan on using the sharpy trick to see how far they're moving and I plan to inspect the weights and rollers again to see if there's any wear, but I know they looked good last time I adjusted weights and I know my shims are tight so the weights aren't getting sloppy in there. I could take photos and/or report back with other findings, actual weight of weights, screws and washers, etc, but what I want to hear from you guys is where else to look and what else to consider so I can look at and hopefully eliminate some other variables.
As always...thanks in advance!
