GStwin.com GS500 Message Forum

Main Area => General GS500 Discussion => Topic started by: baronduff on June 30, 2015, 03:46:53 AM

Title: Thoughts on US vs UK rejet
Post by: baronduff on June 30, 2015, 03:46:53 AM
Hey all was looking for some thoughts on rejetting, I'm in the UK and have heard people mention that UK and US fuel are commonly a different octane and was wondering how true this is and whether it might affect using suggested jets on the GS wiki matrixy thingy?

I've thrown an R6 can on my GS and have got a K&N lunchbox on order, was thinking of going with the "conservative" suggestion of 22.5/65/145 for a sports pipe (the can is basically straight through) and going from there. Also got those crazy Brisk ring fire plugs in, if it makes any difference?

Anyone got any thoughts? Am I just being stupid?
Title: Re: Thoughts on US vs UK rejet
Post by: The Buddha on June 30, 2015, 05:14:53 AM
UK 89-00 is 125/40 stock. No clue what 01+ is.
Someone can look in the factory manual and post.
Cool.
Buddha.
Title: Re: Thoughts on US vs UK rejet
Post by: metatron on June 30, 2015, 06:06:28 AM
1989 - 2000: Pilot 40 (37.5 USA), Main 122.5
2001 - 2003: Pilot 17.5, Mid Main 60, Main 127.5
2004 - 2007: Pilot 17.5, Mid Main 60, Main 130
Title: Re: Thoughts on US vs UK rejet
Post by: nathaniel2910 on June 30, 2015, 06:42:56 AM
I'm also in the UK, straight through exhaust stock filter and I've got to 20/60 135
Could really do with getting 132.5 mains tbh
Title: Re: Thoughts on US vs UK rejet
Post by: baronduff on June 30, 2015, 09:06:45 AM
Thanks guys, ok maybe my original figures were a bit aggressive then, I think I'll try a 20/60 and try 135 and 137.5 failing that :)