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June 4th, 2015, 09:22 AM   #1
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To squirt or not to squirt........

.......that is the question!
Been playing with the squirt timing on my 41mm FCR and apart from a early long squirt causing a puff of smoke and dirty plug after a few stationary blips I'm not sure what's giving me the best pick up? I'm using a 1/4 turn throttle which is either wide open or shut and the engine is revving hard at all times, I don't notice any bog no matter what I set it at? The very slow hairpins I might slip the clutch a tad but otherwise nailed at all times! Any real disadvantage in disconnecting it?
Many thanks
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June 5th, 2015, 04:23 AM   #2
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if it still works good then why not ?

Lineaweavers instrcutions were to remove the pump pushrod altogether

FCR Instructions:

i run a tiny amount of squirt .. does help a bit
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June 5th, 2015, 05:37 AM   #3
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I know, this is mainly about squirting but maybe u dont mind my slightly off topic, but still carb question: what lubricant should I use for throttle valve lubrication? I am affraid that badly choosen lubricant could melt and stuff up the jets. thanks
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June 5th, 2015, 03:29 PM   #4
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The idea with FCR tuning is to disable the AP first, then once setup, dial it in. I find that a little bit helps, and that the better the jetting/needle is, the less AP is needed. Some is nice though. I'm using the BK mod on my 650's FCR.



The exposed thread on the screw = the gap = the stroke of the AP, more or less. Currently, OTTOMH, at about 0.2 mm. Any more and its too hard to ride in technical terrain.

I use a bit of Silicone spray when servicing the carbs to lube the slide and rollers. Help much? Dunno...

Last edited by steve; June 5th, 2015 at 05:17 PM.
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June 5th, 2015, 03:33 PM   #5
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you mean on the shaft #26 edelweis?

or the pushrod for the pump#25 ?

http://tiltpen.net/images/displayima...album=6&pos=64

the original grease seems to be a white lithium base grease
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Last edited by bushmechanic; June 5th, 2015 at 03:36 PM.
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June 5th, 2015, 05:13 PM   #6
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Damn... I guess I still have a lot to learn. I don't know anything about the carb on my bike other than it starts easily, so I assume it's set up well.
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June 6th, 2015, 12:54 AM   #7
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Can't get the 'thanks' to work!!

Many thanks lads, good advice as always think I'll set it up with a tad of squirt early doors
(Early doors is a very British expression!).
Thanks from bushmechanic and tourist
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June 7th, 2015, 12:25 PM   #8
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bushie: I mean nr.4, the skateboard that moves the jet needle and the arm on which it hangs. I have some white lithium bicycle grease I will give it a try. thanks
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June 7th, 2015, 03:35 PM   #9
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ok ... FWIW i don't lubricate the skateboard .. maybe i should
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June 8th, 2015, 01:29 AM   #10
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Hi

You also have another way to limit the squirt, I've use the screw but now I'm using the spacer.

Here is one example


ZAGA
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To squirt or not to squirt........-boyesen-apj-stopper.jpg  
Thanks from edelweiss and canolman
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