To squirt or not to squirt........

canolman · Jun 4, 2015

.......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

bushmechanic · Jun 5, 2015

if it still works good then why not ?

Lineaweavers instrcutions were to remove the pump pushrod altogether

http://husaberg.org/fuel/2986-fcr-instructions.html

i run a tiny amount of squirt .. does help a bit

edelweiss · Jun 5, 2015

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

steve · Jun 5, 2015

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...

bushmechanic · Jun 5, 2015

you mean on the shaft #26 edelweis?

or the pushrod for the pump#25 ?

http://tiltpen.net/images/displayimage.php?album=6&pos=64

the original grease seems to be a white lithium base grease

jmscrttndn · Jun 5, 2015

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.

canolman · Jun 6, 2015

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!). :spin:

edelweiss · Jun 7, 2015

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

bushmechanic · Jun 7, 2015

ok ... FWIW i don't lubricate the skateboard .. maybe i should

zaga · Jun 8, 2015

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

steve · Jun 8, 2015

Interesting, I hadn't seen that one before. There is also the Taff mod for the earlier style FCRs like I have on my 501, and adjustable leak jets from Boyeson and Merge that have the same effect.

Taff mod on a carb I bult for a mate's DR650, same as my FE501 setup

I have a Merge on on the FCR on my DR650.

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To squirt or not to squirt........

canolman

bushmechanic

edelweiss

steve

bushmechanic

jmscrttndn

canolman

edelweiss

bushmechanic

zaga

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