My goldwing six, GL1500, has two carbs, both of which I recently\npainstakingly rebuilt, but NOW I have some bizarre problem, seemingly\ncarb-related <but maybe not?>:\n\nit starts up just fine when cold or hot, but it runs lousy, with cold\nOR warm engine. When it's cold, just after starting, even with the\nchoke all the way ‘on', when I twist the grip, even SUPER-slowly, it\ndies -immediately-. This is ‘still on the centerstand' here, I mean.\nWhen it's warmed up, still on the centerstand, it seems more like\nnormal behavior, twist-grip-response-wise, but _only_ after the temp\ngauge is halfway up or more...\n\nby the way, took painstaking notes _and_ made drawing when dismantling\ncarbs, so chances I put some jet or tiny hose 'back in the wrong\nplace' are ZERO.\n\nThe main problem is, when it's on the centerstand and I have the\nthrottle lock 'on' (_or_ when I try driving any ‘set fixed speed' down\nthe hiway), it WON'T maintain a steady RPM setting, on the centerstand\nOR the road.. Also, when starting up from ‘stone cold', with the choke\neven ‘full on', it flat out "dies stone dead immediately" when I twist\nthe throttle, even when I twist it super-SUPER-slowly. And I mean\n_dead_crawl_ slowly here, too...before the carb overhaul, it was at\n_least_ ‘driveable' cold, with the choke on...now, it's nowhere NEAR\ndriveable, cold, not even CLOSE....\n\nWhen it's warmed up, though, and I try driving down the hiway, it runs\nup smoothly ‘thru the gears', just as strongly as it ever did, even up\nto 5000 RPM in 1st, 2nd, 3rd, and 4th, but when I try setting the\nthrottle lock, on a long flat road (say in third or fourth, attempting\na 2000, or 2500 or 3000 RPM steady cruise), it won't do it, or even do\nanything ‘close' to it - instead, it acts as if someone shuts the key\nOFF every three or four seconds out of five or so, roughly. Like it\n‘just ran out of gas' every few seconds. frustrating. On the\ncenterstand with the throttle lock on, at ‘locked ranges' in the like\n2000 to 3000 RPM areas, it ‘varies up and down' every few seconds,\ntoo, dropping 500 RPM one second and speeding up 6 or 700 RPM a few\nseconds later, and on and on, minute after minute, same deal, from the\nsame locked twist-grip setting (and the throttle lock works\nfine)...this is driving me NUTS. I know it's some ‘simple thing', but\nthe " which simple thing is it?" bit is the main problem....is there\n_any_ possibility this is 'ignition related'? my guess is carbs, but\nnot sure, at this point...\n\nThe faster I try to go, in the higher gears, the worse it seems to\nget. It's not ‘breaking up', though; it's more like acting ‘fuel\nstarved' or something. BTW, the air cleaner has JUST been cleaned, and\nthe fuel filter is nowhere -near- being clogged, and today I tested\nthe fuel pump output against factory ‘minimum specs' for delivery per\nminute and it near -doubles- that output....also, when I took off the\nfuel hose TO the carbs today, about 20 minutes -after- my last road\ntest, there was -still- plenty of fuel pressure IN the fuel line, if\nthat indicates anything.\n\nand, all six spark plugs were recently sandblasted lightly and gapped\ncorrectly. It idles just fine (after warmup). also, when the carbs\nwere dismantled, the floats seemed to work fine, not sticking, and\nfloat levels are adjusted correctly in both carbs (used dial caliper).\nI don't own one of the special honda pilot screw wrenches (and tried\neverything else to get ‘em out; the heads on ‘em are ‘round with ONE\nflat side' plus they sit down inside a walled recess, so there's\nnothing to grip...) so I had to leave those two ‘in' (1 per carb) when\nI dismantled, soaked and later ‘blew out'all the carb passages, etc.\nthe gasoline in it is only 3 wks or so old...\n\ngot any ideas on this? How come when I ‘accelerate like a bat outta'\nhell' or 'just sit there idling' it runs great, but when I try\n‘cruising' any set speed with a fixed throttle, it flat-out dies every\nother second or two....the faster I'm going down the hiway, attempting\na steady cruise, the more time the 'on-off nuisance' factor seems to\n'elect' to stay in the 'off' election it so favors. I'd sure -like- to\nhear from you carb experts regarding your ‘most likely culprits list'\nespecially those factors 'easiest to check out' first.\n\nThanks,\n\nbill, aka "mr non-steady cruiser"