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help!! hard starting te410 when hot

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I'm writing on behalf of my buddy who has a 2000 TE410 (stock)...he has a harder than hell of a time starting his bike once he's been riding for a while. It starts up without a problem when the bike is cold, but no such luck when it's hot...warm...bump starting is usually his only option. Any suggestions anybody? :thumbsup: Many thanks! Mark

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Hi,

I take it that we are talikng about the left kick enduro bike ,

not the e-start model.

My first point would be to check the valve clearances, and then the carb for flooding (float?)

As when the bike is cold a rich mixture is not a bad thing, but of course when it's hot - it's the LAST thing you need...

The valve clearances on these bikes heads don't have to move much to make a BIG difference to the fuelling, :ride:

when I had the same happen to my left kick 410 I used to kick it over with the throttle full open and the decomp lever in for half a dozen kicks to clear it out (like a flooded/gassed-up 2 stroke!!) it would then fire-up o.k.,

but of course with NO THROTTLE,

on the e-start bikes this is harder as there is no de-comp lever.... thats how I discovered how fussy these heads are to valve clearance set - up..

Hope this helps,

Charlie :thumbsup:

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My buddy changed his ignition because of this on his 99 410. It seemed to solve the problem.

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Thanks for the input guys......Charlie-it's interesting how 'out of spec' valve clearances on different bikes actually create different results...when my bikes' Intake valves went, I couldn't start it cold, but had no trouble when it was warm. Do the Husky's have exhaust valve problems...or are they like any other 4-stroke with just the typical tightening of the intakes? Are they rocker, or shim/bucket? Do you have the valve specs? ("search" is down)

Shaun.....is there a way to check the ignition box, or can I get the bike warmed up, shut it off, pull the plug wire and see if it sparks to the plug when kicked over? (I'm assuming a new ignition costs over $100)

Could it be caused by low compression? Does anyone know the acceptable compression range for this bike?

Heading over tomorrow night, and hope to try and diagnose the problem before I start buying parts for the thing.

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I had a '00 410 and the fuel screw needed to be adjusted as the temps changed- screw in for warmer weather. Check the plug and see what the mixture is like. The valves are screw-adjust- very easy. i think 4-6t hou-intake, 6-8 on the exh.

I would check the carb settings and the valves first. I did have a problem with the magnets coming off the ignition flywheel but it wouldn't start at all.

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all, Pete...thanks for the help.

Pete....thought your name was familiar....noticed you helped at WCMC...thanks! Bad race for me, but a great track!! Don't let the wnyoa forum hags bring anyone down at WCMC....I'm sure it was a difficult day for everyone that helped. I'm looking forward to racing there again next year!!!

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