Anyone out there have a Joyner SR2?
I purchased one in early 2009. I had it out a the Imperial Dunes once around that time and was unable to use it because I had washed it and the spark plug recesses are not well sealed and the water that got in around the plug bases would cause the SR2 to go into limp mode when it warmed up. It was a Saturday and noone was available at Thunder so I did not get to use the SR2. I live in Arizona so we stopped by Thunder on the way home and they quickly knew what the problem was and corrected it. I must say that they have been very motivated and helpful up to this point. Since then I have driven it around my house and in the desert nearby. Very rigid and alot of vibration in this setting but the little use I had in the dunes was much more what this rail is built for. Problems at this point with < 100 miles have been a leak in the gas tank (replaced free of charge) as well as difficulty keeping the siding and tail screws tight (locktite). Thunder also did some thin rubber mounting to try and correct the vibration with mild success. I have left the original shock pressures intact which I understand are set at 165lbs which likely has something to do with the hard surface stiffness and vibration. I also have a drive train intermittent rotational friction sound that I am not convinced will not haunt me in the future. When Joyner tested it they could not find anything. I have the on and off road tires as well as the sand tires. On hard surfaces at higher speeds the rail is very squirelly and 65 MPH was about as fast as I felt safe. I suspect in the soft sand it will be in it's element. I will have it in the dunes again in December and anxiously await further experiences with it and hopefully no problems. If anyone out there has any stories or experiences with Joyner SR2's I'd like to hear from you. Overall I am impressed with the styling and bang for the buck (I got a good deal on this one at $14,900) The welds are cosmetically imperfect but I hope they are structurally sound. I have not seen any reviews on these despite a significant net search. I will update this as I find out more.

The side panels are fiberglass and the fasteners are wide head bolts with a rubber washer so if you overtighten the rubber spreads and if you undertighten they fall off. I guess locktite is the answer. You can't use a solid washer or it will crack the fiberglass.

I performed a recommended steering linkage modification that Casey at Thunder had suggested on my Joyner Sr2. Where the steering linkage mounts into the steering box there is a male and female splined link and a side bolt that pressures the splines together. You can tell this is a weak point and that under force in hard turns it could strip the spines. I drilled a small approx 3/8 inche hole through both the input shaft of the steering box and the steering linkage end piece where they join and put a bolt through. This holds the parts together in a rigid fashion that will not allow any spinning. I was wondering if anyone else has done this or if anyone has had a problem with the parts stripping in left unreinforced? Any other easy modifications that I should consider for the Sr2?

wondering if anyone here has one??

I'm the guy from Buggynews discussion that has the Sr2. What do you think of it so far?

well, got the SR2 deliveled today... typical joyner issues.. it had no low end power....
fuel presure was only at 28 psi... cranked up the pressure ... she rips now...

steering was a hand full.....driveside had about 15 neg degrees caster..and about 15 degrees neg camber

pass. side had about 2 degrees pos. camber and 2 degrees positive caster...
pluss 3/4'' toe out... fixed that now it runs straight

same shock issue front way too stiff, rear tooo soft... the buggy had no droop.. you want about 40 %

I had the front shocks off the 1100 that had softer springs and were 1'' longer... what a differance..

I'm gonna get a set of F. O. A .COM shocks made


now on what I read about your buggy.. first if you plan to drive on the street get some sway bars on there

finally got the dirt tires on