View Full Version : '99 SR50 from stock to performance in $1,000
04-06-2011, 02:43 AM
Another newbie here.... :lame:
I've read several posts, looking for some direction on what performance parts to add to my stock 1999 SR50 (yes, I am the original owner, just haven't had time to do much with this and haven't ridden it much the past few years). Of course, there's so much opinion but I can certainly see that there's a wealth of knowledge on this site. So here's my deal:
I have $1,000 to spend. I want my stock 1999 SR50 to have good acceleration and the best top end speed I can get. What performance parts do I get for it and in what order do I put them on?
04-06-2011, 11:02 PM
Nobody has any suggestions for me? Steve at AF1 Racing recommended a derestricted main jet and LeoVince exhaust and suggested that would be sufficient for more power and engine longevity. My former shop mechanic suggested a 22mm carb and exhaust for starters, then an 80cc cylinder kit (seems like these aren't available anymore?), reed valve, variator kit, cone shaped air filter, and a kevlar belt. Is all this a pipe dream and really necessary or should I follow Steve's advice and maybe do the other derestricting steps as stated in the FAQ? Come guys, you're the experts, help out a newbie.
04-07-2011, 04:49 AM
Big bore kit, performance pipe, larger carb, gear up and if you have any pennys left upgrade the clutch and variator
04-07-2011, 05:25 AM
Well it sounds like you will need to decide if you just want it a little faster or are you just looking to spend your money.
04-07-2011, 08:15 PM
Daniel-S and ReplicaOwner, thanks. I want a faster acceleration from a stop and have a higher top speed, perhaps 50mph (I'm only using it on local roads and top speeds are 45mph). What would you do?
If I just put in a derestricted main jet and Leo Vince ZX exhaust, what would that do acceleration-wise and top speed-wise?
04-08-2011, 06:56 AM
It could get you a speeding ticket!
The ZX comes with new rollers and clutch springs that wake it up quite a bit.
Before you do anything, you need to do a compression test to see if the ring and piston is still good. How many miles in on it?
04-08-2011, 11:44 AM
I can't imagine the piston wouldn't still be good. It only has 9,387 miles.
04-08-2011, 07:12 PM
I was going to hone and rering my old cylinder but I got a good deal on a big bore kit that came with new piston and ring as well, so I got that.
Unfortunately that will have to be fixed first and will determine the path to go next.
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