[Awesome Oilcooled Pics]

[Gsxr zorst on b12]

22 minutes ago, Dezza said:

Interesting. I guess the longer stroke 750 slabsides have taller blocks than the short stroke 750 slingshot engines.

they absolutely do, I'm running a slingshot 750 top end on my slabby 750 bottom end and had to use a block spacer to get the corrected piston deck height, among other things to make this work but I digress

[Awesome Oilcooled Pics]

 

[Does anyone know what size pilot jets the Gsxr 750 1990 takes?]

they are #37.5 if you are stateside, #32.5 if you are across the pond. also, given, you are running the factory BST38ss carbs and the bike is relatively stock

https://www.say what now!?.com/threads/understanding-carbs-rebuilding-forks-and-1100-shocks.159718/

[running on one]

pull your spark plugs out, connect them to the boots and crank the engine to check for spark. could be a fueling issue, I'd say the pickup on the right side of the motor could potentially be going bad. luckily all Oilers with a single pickup for the rotor share the same exact part, which means you could get one from a teapot 600 for like $20

[Gsxr zorst on b12]

nope it will not, not without bending the header pipes up a bit. this was on a 1052 block as well, the 1127 and 1157 blocks are the same height and a bit taller than a 1052 which would require even more bending of the header pipes. these were yoshimura headers for a 750k

[Stateside meet ups]

I'd be interested in seeing if anyone resides in Texas, namely Houston or San Antonio