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 hot start tips... ('87 XL600R)
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xl guy
Guatemala City

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Guatemala
302 Posts

Topic started on 03/26/2006 at 08:03:09 AM  Member Profile  Reply with Quote
i am having trouble
starting my bike when hot.

it is an xl600 '87 i've heard
about hot start buttons.

mine obviously dont have one,
what are some tips to hot starting?

1987 honda xl600r
central america

4StroKen
Yorba Linda, CA

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USA
1343 Posts

Posted on 03/26/2006 at 11:05:15 PM  Member Profile  Reply with Quote
It should fire right up unless the decompresion set up is out of adjustment . that was critical on my 84 xr 500

"a few china quads and a ttr 125"

xl guy
Guatemala City

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Guatemala
302 Posts

Posted on 03/27/2006 at 04:14:42 AM  Member Profile  Reply with Quote
hmm ok, could it be that the air intake boots
dont seal well?

mine are kinda pushed in where they meet
the air box.

anybosy know any tricks tu pull them out,
and have them stay out?

1987 honda xl600r
central america

4StroKen
Yorba Linda, CA

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USA
1343 Posts

Posted on 03/27/2006 at 09:33:36 AM  Member Profile  Reply with Quote
If they leak air then yes it would mess things up
when the rubber gets old and hard they tend to start to crack.
remove them and try soaking in armorall to soften them, inspect for cracks. if so replace them.

"a few china quads and a ttr 125"

xl guy
Guatemala City

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Guatemala
302 Posts

Posted on 03/27/2006 at 11:28:43 AM  Member Profile  Reply with Quote
i'll see what i can do!

thx

1987 honda xl600r
central america

DGXR
Rancho Cordova

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USA
323 Posts

Posted on 03/27/2006 at 12:52:40 PM  Member Profile  Reply with Quote
Yeah, that intake boot seal is almost critical, it can lean out the fuel mixture and also let dirt and dust into the engine. Once that's all sorted out, the best way to start a hot dirt bike is to pull the compression release lever (if it has one) and kick it about 5 times to get fresh fuel into it. Then, kick it slowly until the piston is just past TDC on the compression stroke and whomp on it hard. It should start. It not, keep trying until it does. Through trial and error you will eventually develop your own hot start technique. Good luck, have fun, ride hard.

84 XR500R
88 XR250R

xl guy
Guatemala City

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Guatemala
302 Posts

Posted on 03/27/2006 at 4:13:35 PM  Member Profile  Reply with Quote
ok i thought so

the thing woth my seals is that they are bent inwards

they are not cracked or anything the rubber is fine!

only they are out of shape and keep returning to it!

1987 honda xl600r
central america

OldnTheWoods
Omaha, NE

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USA
614 Posts

Posted on 03/28/2006 at 9:00:58 PM  Member Profile  Reply with Quote
The carb boots are probably deformed to the extent that they'll never be made right, so if it really bothers you replace them, otherwise if you're sure they're not leaking I'd leave 'em alone.

I trust you've already done all the usual stuff in the sense of good spark plug and clean air filter.

It sounds to me like the bike's rich on the bottom of the rev range, idle and just off.

It would help me if I knew how you were shutting the bike off before you attempt the hot start. It might make a difference in my suggestions.

If you've not had the valves adjusted in some time I'd absolutely do that, and also have the automatice decompressor adjusted (which is done after the valves have been adjusted). It sounds like you don't have the "decompression lever" next to the clutch lever.

Let me know how the bike is being shut off prior to your attempts at hot start and maybe I can help a bit. However, you might first try adjusting the idle air screw (sorry, I can't remember whether you do so my turning it in or out on those bikes, so you may want to make careful note of where it is now and go half a turn one way, then ride it awhile to see how that works....if it doesn't go back the other way, past where the screw's set now and half a turn in the same direction, then see what that does).

Hope this helps a little.

John

2008 XR650L--Desmogged, jetted, OEM pipe opened, snorkel removed, Twin-Air filter added, nice rear rack ($70 on eBay) fitted with Oxford Sport tank bag for use as a rear bag. Avon Distanzia tires---BIG improvement on-road! 12,000 miles. Motul full-synthetic oil, already changed five times.

REMEMBER, it's all good fun until someone loses an eye!!

tomoiq
Central Europe

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Slovakia
39 Posts

Posted on 03/29/2006 at 01:23:25 AM  Member Profile  Visit tomoiq's Homepage  Reply with Quote
I had the same problem, try to change spark plug - I used to have Champion RAX94YC and I guess it was much better...

95 XR600R

xl guy
Guatemala City

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Guatemala
302 Posts

Posted on 03/29/2006 at 04:32:17 AM  Member Profile  Reply with Quote
tom: what sparkplug do u use now?

about my mixture, my bike "coughs"
a few tomes until it dies.

about the boots anyone know where i can get
air intake boots?

how i stop the bike varies but i an tryibg to
use the switch more!!

1987 honda xl600r
central america

xl guy
Guatemala City

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Guatemala
302 Posts

Posted on 03/30/2006 at 06:26:38 AM  Member Profile  Reply with Quote
no boots anyone??

besides flea-bay!!

1987 honda xl600r
central america

xl guy
Guatemala City

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Guatemala
302 Posts

Posted on 03/31/2006 at 04:34:10 AM  Member Profile  Reply with Quote
ok i plugged up the air leak with silicone!

i think it is working fine,

i just hope it don't get sucked in!!

has anyone seen air boots online??

from what i hear a hot start button adds fresh air right?

maybe the leak was helpin in hot starts?

1987 honda xl600r
central america

b_king
Oakville, ON

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Canada
4566 Posts

Posted on 03/31/2006 at 04:42:53 AM  Member Profile  Click to see b_king's MSN Messenger address  Reply with Quote
The hot starts do indeed add fresh air, but only to mix properly with the fuel. The air leak you had would have given too much air, thus creating a slightly leaned out mixture. A cold engine does not burn all of it's fuel in the mixture because it is cold, thus it needs help to get started, the choke. So when the engine is hot, it will burn all of it's fuel. If not enough is available(lean mixture) then it will be either hard to start, or not start.

Hope this helps, good luck!

08 KLX450R
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