Has anyone had any problems setting up an R6 rear shock?
Moderator: rztom
Re: Has anyone had any problems setting up an R6 rear shock?
Hi Off Road, welcome to the conversation. Very interesting stuff!!!!
What does stand out a mile is 1. the standard spring on the YPVS is 10.5, and the R6 is 9.3. So the R6 has a softer spring to begin with. 2. Fitting an R6 rear shock to a YPVS lifts the rear of the bike at least an inch, so I must assume that it's a longer shock. 3. You say installing a longer shock increases the leverage in the system and makes the spring appear to be softer.
If I add all these together:- R6 has a softer spring as standard, coupled with a longer length which increases the leverage in the system. = Result, my yamaha is dragging it's arse on the floor!
So, are my calculations (nowhere near as complicated as yours) pretty close? Will a 12.5 spring on the R6 shock get me in the right ballpark so that I will be able to dial it in with the many preload settings on the R6 shock? or is 12.5 still too soft?
What does stand out a mile is 1. the standard spring on the YPVS is 10.5, and the R6 is 9.3. So the R6 has a softer spring to begin with. 2. Fitting an R6 rear shock to a YPVS lifts the rear of the bike at least an inch, so I must assume that it's a longer shock. 3. You say installing a longer shock increases the leverage in the system and makes the spring appear to be softer.
If I add all these together:- R6 has a softer spring as standard, coupled with a longer length which increases the leverage in the system. = Result, my yamaha is dragging it's arse on the floor!
So, are my calculations (nowhere near as complicated as yours) pretty close? Will a 12.5 spring on the R6 shock get me in the right ballpark so that I will be able to dial it in with the many preload settings on the R6 shock? or is 12.5 still too soft?
Last edited by mike YPVS on Mon Jun 23, 2014 4:59 am, edited 1 time in total.
Re: Has anyone had any problems setting up an R6 rear shock?
JonW wrote:are the YSS as adjustable as the R6 Mike?
Have a look here Jon
http://www.yss.co.th/z_series.php" onclick="window.open(this.href);return false;
Re: Has anyone had any problems setting up an R6 rear shock?
Mike, without a friend to measure the sag with me on the bike, I did manage to get two reading so far:
Measured from under the rear axle bolt to the side panel, going behind the muffler and passenger peg, to bottom edge of point where side and tail panels meet:
1, On center stand, wheel is slightly off floor, turns without rubbing: 42cm.
2, Bike off center stand and stood on its wheels: 40cm.
Measured from under the rear axle bolt to the side panel, going behind the muffler and passenger peg, to bottom edge of point where side and tail panels meet:
1, On center stand, wheel is slightly off floor, turns without rubbing: 42cm.
2, Bike off center stand and stood on its wheels: 40cm.
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
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81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
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Re: Has anyone had any problems setting up an R6 rear shock?
Thanks Jon
So yours is pretty close to mine, you have a 20mm drop under it's own weight. I measured 23mm, that's close enough for me.
You should be looking for a drop a lot less than that with just the bikes weight, about 5mm is right. What preload is your R6 shock set at?
I needed MAX to get my 23 mm
So yours is pretty close to mine, you have a 20mm drop under it's own weight. I measured 23mm, that's close enough for me.
You should be looking for a drop a lot less than that with just the bikes weight, about 5mm is right. What preload is your R6 shock set at?
I needed MAX to get my 23 mm
Re: Has anyone had any problems setting up an R6 rear shock?
Actually I have no idea what the preload is set to, I just fitted teh shock as it came to me... I'll check and report back tomorrow...
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
Re: Has anyone had any problems setting up an R6 rear shock?
I give in! just found out I can only get springs as hard as 105 n/m for this R6 shock.
I will be fitting the correct YSS rear shock.
I will be fitting the correct YSS rear shock.
Re: Has anyone had any problems setting up an R6 rear shock?
Damn, still every cloud... can you report on how the YSS goes and how you like it. I have YSS on my XT500 and like them, I might be tempted to use these on the RZ as well.
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
Re: Has anyone had any problems setting up an R6 rear shock?
Well, I have sold a lot of YSS twin shocks over the years, mainly for the Suzuki GT750's .
YSS used to produce budget shocks but they moved up a gear a few years ago.
Just ordered it online, collect it in the morning, bike back on the road by the afternoon. Can't have my bike in bits during the summer lol
R6 rear shock with all bushes fitted for sale anyone?
YSS used to produce budget shocks but they moved up a gear a few years ago.
Just ordered it online, collect it in the morning, bike back on the road by the afternoon. Can't have my bike in bits during the summer lol
R6 rear shock with all bushes fitted for sale anyone?
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Re: Has anyone had any problems setting up an R6 rear shock?
Your R6 shock is defective. Has to be to look like that. Hard to judge how effective it really is when it doesn't work properly.
Re: Has anyone had any problems setting up an R6 rear shock?
I will find out tmw, I am having it looked at.
The thing is, it's only the spring that can cause that.
The thing is, it's only the spring that can cause that.
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Re: Has anyone had any problems setting up an R6 rear shock?
I've never seen it happen with the R6 shock on an RZ350. I couldn't get mine to do that if I weighed 300 pounds.
With stock linkage and a serviceable R6 shock that should never happen. I've bought several shocks and seen many, many more and have never seen the stop get crushed. Bizarre.
With stock linkage and a serviceable R6 shock that should never happen. I've bought several shocks and seen many, many more and have never seen the stop get crushed. Bizarre.
Re: Has anyone had any problems setting up an R6 rear shock?
mine defo doesnt have the stop crushed but mine does drop the same on the static sag. My shock was a really nice condition unit out of a very low miles bike, something like 1200miles and looked like new when I got it. All very interesting. Loving the YSS unit, I remember i had the XT500 units on my desk for ages when I bought them, they just looked that nice! :)
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid
Like Watches? www.PloProf.com & www.DeskDivers.com