martin_csr wrote: Did you just remove the bowls n stuff, without soaking/dunking the carb bodies?
If so & when you did, how bad were the carburetors? Gummed up n stuff?
The carb body orifices may still be plugged.
Initial mechanical synchronization of the throttle slide? ~0.8-1.0mm gap
Air screws set to ~1.5-2.0 turns out from seated?
Service fuel level check? 3.0mm +/- 1mm below the carb body.
Are the airbox ducts hard? If so, try spraying carb spray or something to check for any vacuum leaks. A change in rpms will indicate a leak. If so, then you may be sh!t out of luck - the 81 CSR ducts are NLA and no other model has the same ducts.
Good air filter installed?
Go ahead & do a compression check. Engine warm, spark plugs removed, tester installed into one spark plug hole, WOT, crank the engine w the starter button. While the plugs are out, take a look at them to see if there are any clues.
Check to make sure all 4 exhaust pipes are warming up. Start the cold engine, then pat them immediately to see if they're warming up evenly. DON"T BURN YOUR HAND. Only pat them at first to check to make sure all 4 cylinders are firing. Don't touch the hot pipes once they get beyond warm. You can use a spray bottle to mist them - after the engine is warmed up, the mist should sizzle. If you suspect anything amiss, go ahead & redo the spark plug wire connections. They become poor from oxidation over time. The plug wires unscrew from the coils: unscrew the ribbed compression boots, then unscrew the wires. If there's a lot of the white crusty stuff, nip off the ends of the wires a tad... not too much though.
Go ahead & get a K&L petcock rebuild kit from Z1Enterprises.com.
Install an in-line fuel filter. I like the clear 3" units from Z1.
I actually had my father in law rebuild the carbs for me the second time around, I gave him the carb kits, and he did the rest. He said he let them soak overnight in carb cleaner. He didnt mention anything about bench syncing them, or float bowl adjustment. I will take the carbs off and re-check/clean everything, bench sync them, and do the float bowl test. While thats going down, ill also check all the spark plugs, and connections.
I have an inline fuel filter installed new today, so thats no worry, its just the petcock rebuild kit i need.
Thanks for the advice man!
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