GT 250 valve shim size? This topic has 6 replies, 4 voices, and was last updated 3 years ago by Hyo71. Viewing 6 reply threads Author Posts Sep 10, 2022 at 1:12 AM #8548 Jim👤 Member Topics: 11Replies: 142 Are the GT 250 valve shims 7.48 mm diameter? Are they common to Suzuki or any other big manufacturer? I would like to have a plan before my valve clearance checks. Thanks folks. Sep 10, 2022 at 8:49 AM #8549 Simon👤 Member Topics: 1Replies: 353 They certainly are. Sep 10, 2022 at 3:04 PM #8552 Jim👤 Member🖊 Topic Author Topics: 11Replies: 142 Thank you Simon. Are the Hot Cams or Pro X shim kits any good? Sep 10, 2022 at 6:04 PM #8563 ♠️ M77👑 Admin Topics: 40Replies: 2,986Country: UKBike Model: GT JMP Shims are better. Supposed to be made in Japan too. Go OEM Suzuki or OEM Hyosung if you can (Hyosung uses Suzuki’s shims anyway) I have not tried HotCams or ProX to comment on their wear rate and such. Sep 10, 2022 at 10:34 PM #8564 Jim👤 Member🖊 Topic Author Topics: 11Replies: 142 JMP shims look rare over here. Besides OEM, PRO X seems to be slightly preferred over the Hot Cams. Still gathering info. Thanks Marcel. Oct 23, 2022 at 11:33 PM #8919 Jim👤 Member🖊 Topic Author Topics: 11Replies: 142 I went with these Taiwanese made shims. I won’t check valves for a couple more weeks though. Oct 24, 2022 at 8:54 AM #8921 Hyo71👤 Member Topics: 4Replies: 18 I was going to ask the same question as I need to check mine. I was hoping they were 10mm as I already have a good range of those. Author Posts Viewing 6 reply threads You must be logged in to reply to this topic. SHARE THIS Share on WhatsApp (Opens in new window) WhatsApp Share on Telegram (Opens in new window) Telegram Share on X (Opens in new window) X More Share on Facebook (Opens in new window) Facebook Share on Bluesky (Opens in new window) Bluesky
I went with these Taiwanese made shims. I won’t check valves for a couple more weeks though.