harvey250 Posted April 15, 2008 Report Share Posted April 15, 2008 (edited) Hi Everyone here seems to be very helpfull , so I wonder if you could help me with a few questions . I have just purchased an 03 sy250 and ridden it once and LOVE it , having just switched from enduro i dindnt think the motor was very "revvey" , I have read alot of the posts and it appears this may be normal for a u.k. version , I have also read there are some imported versions available with lighter flywheels and advanced timing . my questions are: 1) my bike has stickers on wich read "sy racing" do they all have this or is this a racing/import model ? 2)should i worry about it (if it aint broke.............)? any anwers would be greatly appreciated Edited April 15, 2008 by harvey250 Quote Link to comment Share on other sites More sharing options...
paulmac Posted April 15, 2008 Report Share Posted April 15, 2008 (edited) Hi Mate Playing with the timing is easy on the SY - take a look at this - http://www.scorpaaustralia.com/Timing.html - it's simply a matter of whipping off the left side engine case to see how your timing is set - if you're careful the gasket should survive too. Re flywheel weight - experts seem to like the lighter flywheel - more zip - mere mortals seem to prefer the heavier flywheel Edited April 15, 2008 by paulmac Quote Link to comment Share on other sites More sharing options...
copemech Posted April 16, 2008 Report Share Posted April 16, 2008 I seem to recall that is about the timewhen the "racing" came with the lighter flywheel, and other changes, at least over here! I think the timing was advanced and possibly a bit higher compression head, billett clamps and such, good runner! But not a gasser or Sherco, still very smooth and powerful for a 250. Should work well! Quote Link to comment Share on other sites More sharing options...
dgshannon Posted April 16, 2008 Report Share Posted April 16, 2008 HiEveryone here seems to be very helpfull , so I wonder if you could help me with a few questions . I have just purchased an 03 sy250 and ridden it once and LOVE it , having just switched from enduro i dindnt think the motor was very "revvey" , I have read alot of the posts and it appears this may be normal for a u.k. version , I have also read there are some imported versions available with lighter flywheels and advanced timing . my questions are: 1) my bike has stickers on wich read "sy racing" do they all have this or is this a racing/import model ? 2)should i worry about it (if it aint broke.............)? any anwers would be greatly appreciated As a beginning rider, the heavier flywheel is exactly what you need. Don't mess with it. I had four of the SY 250's in a row (2002, 03, 04 & 05) and on each of them with the heavier flywheel, by intent. Once you better understand how a trials event is not like an enduro, you will come to appreciate why the bike is less "revvey", as you put it. In fact, as a new rider, I would even recommend a slow throttle (black tube vs. white) to help you with your throttle control. Quote Link to comment Share on other sites More sharing options...
harvey250 Posted April 16, 2008 Author Report Share Posted April 16, 2008 Hello again , thanks for the helpfull advice , as I understand there was a sy250 and an sy 250 R/acing ? I may have the sy racing with lighter flywheel advanced igntion timing ect.... but maybe not . I guess the easiest way to tell is to check the timming marks . I agree with DGshannon , I also think the extra flywheel weight and softer power will be an advantage in this climate , and at my level . will have to give the slow throttle a go , just cheked mine and its a fast one ! Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.