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Similar Topics
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By cfauvel
ok help so according the service manual, Idle Air Mix Screw (aka Pilot screw) should be initially set to 2.5 turns out from fully seated.
If I do that the motor doesn't want to start or stay running...right now the pilot screw is probably somewhere near 5 turns out....I'll take the carb off tomorrow to count to know for sure.
mind you the carb got a new float seat,float needle and various other components in the kit.
To get the motor running I hard to turn the pilot screw out quite a bit, and turned the idle speed screw in quite a bit...I didn't hook up an inductive tach to know what it is idling at, but does sound about right.
What should the idle speed adjustment screw initially be set at (the one that has the black cable sheath with a knob you can twist easily)?
Is there a special tool to turn the idle/pilot mix screw whilst the carb is on the running motor? I am using a slotted screw driver bit (normally goes into a driver) by hand..makes it hard to turn the driver and hard to tell how many turns .
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By SirMaxwell
Any luck with manuals?
I need a carb in the owrst way and am have gone down a lot of rabbit holes (over 90 tabs and counting). Factory calls for a Mikuni BST34/1 (I think, but need to check manual). I don't care what or who makes the carb, just need a basic reliable carb. No Racing etc, just puttering. I currently only have the cable with the round slide attached.
Don't care if its round if I know what other parts to get to make it all function.
Thanks for help, and listening, gonna go chase more rabbits I guess.
Max
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By Bryzan3
Looking for advice on what to try next I bought this quad and it’s has spark and fuel but won’t stay running only fires when I hold the starter button in even when spraying gas into the carb it still dies right away oil was milky white so I was thinking it maybe went under water 150 psi compression so I might be wrong but not a head gasket I am stuck Cause it should stay running with the straight gas through the carb so what should I try
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By Edgar5656
Looking for a carb for 87 moto4 200. Just bought the machine and it’s got a Chinese one that’s not working right even after I cleaned it out. Looking for the original mikuni vm22sf.
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By Curtis01
OK, sooo I finally did the old skid plate and screen removal to clean out my oil sump during an oil change... This bike only has a couple thousand miles on it. Runs like a top still... Very few issues over the years after buying it used.
But boy I wasn't expecting to see this! Piece of a circlip, stuck up in the screen, and a another shard of metal and maybe a piece of gasket material. Nothing in the oil but that... Pristine otherwise, and still runs like a top. Always has.
Soooo, is it a wrist pin clip? That's the only thing I can think of like this that could end up in there. But definitely wanted to throw it out to guys that have seen the innerds of these more than I have.
The valves on this thing are still within the factory spec even. Been a really good lil workhorse...
Any other ideas?
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