Stopping intermitently at idle-driving me crazier

[Bruce CurtisMember]

Trailboss wrote:

Quote:

Trailboss wrote:

Quote:

Blue I will copy and paste your story to fat head and ask his thoughts, then I will delete Menace’s crap before Admin fronts up

Will await F/H’s thought and paste it here

TB

Reply from Fathead

Ok my little brother NN

Firstly V force 3 always make it richer through the bottom to mid, he has
gone 2 pilots smaller than standard already, but may need to lean it more. I
need to know the air/fuel screw turns, what size pilot. The float needle
might look good but thats not to say that it isn’t sealing 100% of the time.
We do get bikes where the needle looks good, we lower the float level & it
still leaks.
One very random thing is the crank seal on the gearbox side. Is it leaking &
sucking gearbox oil into the bottom end. It’s not very common but it can
happen.
How many k’s has the bike done? Has it had any top end or bottom end
repairs? Has this problem just started or is it on going from new?

On another note. We need to service your shock, it hasn’t been done & I
think it will be pretty shitty. When you’ve got a free day come on down to
Fatbat land, we’ll do a Shock Service article & eat some hot english
mustard.

Oh also nearly forgot, good luck at Port Macquarie pny express this weekend.
I’d love to come up & support you but the work never stops.

Fat Head, your big Brother

Thanks Fathead

Thanks heaps T/B and Mr Fathead.

*I know the bike is a little rich on the transition from idle jet to needle taper, this will be easily remidied with changing back to my summer needle, and Fathead is right the V3s do make it run richer, nice call.
Idle air screw is at 1 and 3/4 turns off seated, from memory I am currently running a #42 pilot jet, mostly idles like a sewing machine, absolutely smooth as for a smoker, that is unless it has just stopped that is, but if it stops it just stops dead no attempt to idle, just dead.

*Had a complete engine overhaul bottom end, rod, pin, big end, top end, mains and seals by Moorooka yamaha maybe twenty five hours ago, and going to tear down top end in next 2 months and freshen up, not using any gearbox oil I can discern, and doesn’t have an acrid smell like when they do, but will recheck again anyway.

* As the man said sometimes the needle and seat appearance is confusing has happened to me before, so will get a carburettor overhaul kit for it so I can replace the needle and seat at least, but how the hell do you remove the seat on these model Keihens?

*Not sure how many K’s the bike has done maybe 300hrs from new as the cases and previous footpegs indicated light to moderate use for 4 years, but I see where he is going with this re electrics, lights and indicators run strong and starts first kick even cold.

*Not sure if this problem has been there for a while, bike has done it since I’ve owned it, and I am sure the previous owner wouldn’t have admitted to me if it had had an intermitent issue like this, if he even noticed as he was more of a firetrail/MX WOT bloke.

* Hot english mustard sounds good :laugh: but my shock was recently serviced and I just fitted a new spring last weekend to accomodate my current weight, so thanks for the offer very decent of you but I must decline as the travel will eat into my sleeping and bludging time…………………. Oh I understand now he meant you T/B!! my bad

A bit of food for thought there, I am leaning towards needle and seat ATM or the TPS interfering, Thanks heaps T/B and F/H

Bruce

[GregMember]

ha ha ha lol, Blue the shock and the mustard bit are for me I forgot to delete it before I cut and pasted. You are a legend Bruce, I snorted when I read it and all my students just looked at me

TB

[Bruce CurtisMember]

Question for the electronically minded out there.

A recent post on TT had me thinking, My bike is supposed to run an “R” plug (as have all my last dozen bikes) but I obviously don’t, never have on any of them just use standard old NGK–ES, could this cause some sort of disturbance in the ignition system and shut it down?

Bruce

[DeanMember]

Bruce I dont think the plug will cause your problems although I wouldnt be using the B8es try the B8EGV far superior. I still think it may be an over supply of fuel.

good luck mate

Ollie

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