CockneyRick Posted October 16, 2018 Posted October 16, 2018 (edited) Having looked at jet kits etc, i noticed these carbs aren't the same as GSX1100F ones. I assumed they belonged to the engine they came with. Can anyone ID them properly? They are tin tops without the balancing spigots? Edited October 16, 2018 by CockneyRick Quote
CockneyRick Posted October 16, 2018 Author Posted October 16, 2018 Should have done that while they were off, but they're all assembled on bike now Quote
wraith Posted October 16, 2018 Posted October 16, 2018 I would say gsxr1100ghj but someone's left the tin bracing off from between the carb top, as they only bolt on via the carb tops. Quote
Dezza Posted October 17, 2018 Posted October 17, 2018 They look like the ones I have - 1100J. The g,h have those odd brace thingies holding the bank together whereas the J carbs have conventional rails. This is shown on the parts fische on the Robinsons Foundry website. Quote
CockneyRick Posted October 17, 2018 Author Posted October 17, 2018 (edited) Well going on the bottom rail i would say J model, but the top rail is slightly different. Also the tickover screw mech is different to all the GHJ models? Edited October 17, 2018 by CockneyRick Quote
CockneyRick Posted October 17, 2018 Author Posted October 17, 2018 And another baffler, Fowlers fische shows the top rail, adjuster & tops as the same. Only the bottom rail don't have the middle carb cutout. So maybe after all, they are GSX1100F carbs? Quote
CockneyRick Posted October 17, 2018 Author Posted October 17, 2018 And can anyone explain why the GHJ & the 1100F have differing sizes of jets, 2x middles generally 2.5 smaller than the outers? Quote
Jaydee Posted October 17, 2018 Posted October 17, 2018 (edited) 4 hours ago, CockneyRick said: And can anyone explain why the GHJ & the 1100F have differing sizes of jets, 2x middles generally 2.5 smaller than the outers? Sure it's not bigger jets in the middle? Done in other makes of bike too. Inner two cylinders have bigger jetting as they runner hotter than the outside cylinders which get more airflow. Aids cooling to the inner cylinders. Edited October 17, 2018 by Jaydee Quote
Captain Chaos Posted October 17, 2018 Posted October 17, 2018 and cam timing also has influence on carb jetting, so does airbox size etc Quote
CockneyRick Posted October 17, 2018 Author Posted October 17, 2018 (edited) Oddly Fowlers list 110 mains for ML & MR then 112.5 for the LH & RH on the GSX1100F And 127.5 to 130 on the GHJ same as above, larger on the outside? Edited October 17, 2018 by CockneyRick Quote
Jaydee Posted October 17, 2018 Posted October 17, 2018 27 minutes ago, CockneyRick said: Oddly Fowlers list 110 mains for ML & MR then 112.5 for the LH & RH on the GSX1100F And 127.5 to 130 on the GHJ same as above, larger on the outside? Maybe it's to aid extra cooling to the outside? Some Suzuki engineer might have figured it helps cool the oil better running through the block? Only a guess on my part though. Quote
CockneyRick Posted October 17, 2018 Author Posted October 17, 2018 I'm with your original thought, the outers have gotta get more cooling i'd have guessed? Plus the K/L/M/N didn't have differing sizes IIRC? Quote
Captain Chaos Posted October 17, 2018 Posted October 17, 2018 could the fuel feed position have anything to do with it? Quote
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