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Old 08-30-2013, 08:19 PM   #20146
Brods1675
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Joined: Sep 2010
Location: Tasmania. Amazing roads. Adventure bike heaven.
Oddometer: 129
that's disconnected. Thanks anyway.
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Old 08-30-2013, 09:05 PM   #20147
Garthe
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Vapor locked gas tank...?
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Old 08-30-2013, 09:11 PM   #20148
Brods1675
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Location: Tasmania. Amazing roads. Adventure bike heaven.
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Wink

Quote:
Originally Posted by Garthe View Post
Vapor locked gas tank...?
now there's a thought...
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Old 08-31-2013, 01:51 AM   #20149
Goofy Footer
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Joined: Jan 2011
Location: San Diego
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Stator? Mine went whacky before it finally blew (E model DRZ).
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Old 08-31-2013, 02:49 AM   #20150
Adrian V
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Location: Albany Western Australia
Oddometer: 520
Ailing bike carby related?

I've got an Oz 400e with the FCR carbie, that started to drip from the overflow tube, part way into a desert trip. The bike ran fine for a few days and only seemed to drip at tick over, so I left it, but the drip became a trickle and the bike became progressively harder to start and lost tick over. Once underway it still seemed to run fine and was returning 17-18 km per litre (51 mpg imperial), through sandy desert terrain.

Once out of the scrub the bike finally quit outside a pub.... (wouldn't start once cold). I took the float bowl off and looked at the float, float needle/seat and everything looked fine. The float bowl was also clean. Put it back together and changed the plug, but still no go. On the verge of giving up I gave it one more kick (fuel off, throttle open) and the bike started . Didn't start the next day though...... back firing through the carbie etc.

So, I'm thinking overflow = leaking float needle/seat = flooding at low revs and possibly a fouled plug, but.... why did the bike run ok once underway, and run fine for 4-5 days before it quit? Is there anything else in the FCR I should be looking for, that would give these symptoms? Would I even be able to see a buggered needle/seat?

Could the overflow be a red herring and the stator be playing up?

Once last thing, the bike was running on OPAL, a low aromatic low octane petrol used to combat sniffing in the indigenous communities, could this have buggered an O-ring somewhere?

Any ideas would be appreciated, my plan of action unless something obvious comes up is to rebuilt the carbie and check the valve clearances (but the bike only has 5500km), but I'd rather find out what went wrong so I can fix it out bush if it happens again..

Cheers,

Adrian
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Old 08-31-2013, 04:31 AM   #20151
coarsegoldkid
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Quote:
Originally Posted by Brods1675 View Post
now there's a thought...
I would suspect the tank vent is not venting especially if it's one with a check valve.

Quote:
Originally Posted by Adrian V View Post
...



So, I'm thinking overflow = leaking float needle/seat = flooding at low revs and possibly a fouled plug, but.... why did the bike run ok once underway, and run fine for 4-5 days before it quit? Is there anything else in the FCR I should be looking for, that would give these symptoms? Would I even be able to see a buggered needle/seat?
...

Once last thing, the bike was running on OPAL, a low aromatic low octane petrol used to combat sniffing in the indigenous communities, could this have buggered an O-ring somewhere?


Cheers,

Adrian
Adrian, I'm hearing two things that could make starting difficult. FCR carbs are foreign to me however I think if the float valve/o-ring assembly is leaking then your engine would have flooded, you would find a very wet spark plug which would be useless until dry. Fuel would also seep past the piston rings into the crankcase diluting the oil.
OPAL fuel is also foreign to me. Sniffing? I am curious and shall look it up. Perhaps this low octane fuel doesn't have the volatility to fire well in a high compression engine.
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Old 08-31-2013, 12:43 PM   #20152
THRASHED
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Joined: Jan 2013
Location: San Dimas, CA
Oddometer: 385
Quote:
Originally Posted by EOD3MC View Post
Moved the bags I usually use on the KTM's crashbars over to the DRZ.

Looks like the straps will provide a solid mount...guess we'll find out tomorrow when we head out for a couple hundred miles of fun





Other side holds tool kit, air pump and a few other items...
(bags are 6x10 tactical gear bags from 5.11)
Interesting idea. I'm sure if you are fully loaded the bike handles differently, but with just those up front do you notice much change?
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Old 08-31-2013, 02:36 PM   #20153
Brods1675
Giant
 
Joined: Sep 2010
Location: Tasmania. Amazing roads. Adventure bike heaven.
Oddometer: 129
Quote:
Originally Posted by Adrian V View Post
I've got an Oz 400e with the FCR carbie, that started to drip from the overflow tube, part way into a desert trip. The bike ran fine for a few days and only seemed to drip at tick over, so I left it, but the drip became a trickle and the bike became progressively harder to start and lost tick over. Once underway it still seemed to run fine and was returning 17-18 km per litre (51 mpg imperial), through sandy desert terrain.

Once out of the scrub the bike finally quit outside a pub.... (wouldn't start once cold). I took the float bowl off and looked at the float, float needle/seat and everything looked fine. The float bowl was also clean. Put it back together and changed the plug, but still no go. On the verge of giving up I gave it one more kick (fuel off, throttle open) and the bike started . Didn't start the next day though...... back firing through the carbie etc.

So, I'm thinking overflow = leaking float needle/seat = flooding at low revs and possibly a fouled plug, but.... why did the bike run ok once underway, and run fine for 4-5 days before it quit? Is there anything else in the FCR I should be looking for, that would give these symptoms? Would I even be able to see a buggered needle/seat?

Could the overflow be a red herring and the stator be playing up?

Once last thing, the bike was running on OPAL, a low aromatic low octane petrol used to combat sniffing in the indigenous communities, could this have buggered an O-ring somewhere?

Any ideas would be appreciated, my plan of action unless something obvious comes up is to rebuilt the carbie and check the valve clearances (but the bike only has 5500km), but I'd rather find out what went wrong so I can fix it out bush if it happens again..

Cheers,

Adrian
Mine had this as one of the early problems. Float got stuck and fuel poured out of it. My bike probably has similar mileage to yours.
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Old 08-31-2013, 02:41 PM   #20154
Crabenho
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Joined: May 2004
Location: Northern Colorado
Oddometer: 608
Subframe and Wolfman Racks Needed

Hey Guys,

I have a set of Wolfman Expedition bags that I want to put on my 2003 KLX R. I guess I need to replace my subframe with a S or SM model. If anybody has one, I'd be interested. I also need the Wolfman DRZ side racks.

Thanks,
Chris
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Old 09-01-2013, 03:32 AM   #20155
Adrian V
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Location: Albany Western Australia
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Thanks for the input...

Thanks for the input. I think I'll try and replace the O-ring first, is it worthwhile getting a Viton one (size?)?

I'll also check the valve clearances, just in case....

If that fails I'll replace the needle/seat; hopefully one or other of these will sort it out.

Cheers,

Adrian
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Old 09-01-2013, 06:22 AM   #20156
coarsegoldkid
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Location: Coarsegold, CA
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I looked up OPAL fuel. I would have never in a thousand years guess that anyone would want to inhale gasoline fumes to get mental relief from daily boredom. Damn don't they grow marijuana there?
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Old 09-01-2013, 07:30 AM   #20157
EOD3MC
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Quote:
Originally Posted by THRASHED View Post
Interesting idea. I'm sure if you are fully loaded the bike handles differently, but with just those up front do you notice much change?
Did about 350 miles with them yesterday...didn't notice them at all until I had to fix a flat...Then I really appreciated the expanded tool kit I was carrying

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Old 09-01-2013, 08:13 AM   #20158
See-Three
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Location: New Hampshire Seacoast
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Speaking of flat tires, popped both of mine this last Friday.




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Old 09-01-2013, 08:27 AM   #20159
THRASHED
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Location: San Dimas, CA
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Quote:
Originally Posted by EOD3MC View Post
Did about 350 miles with them yesterday...didn't notice them at all until I had to fix a flat...Then I really appreciated the expanded tool kit I was carrying

Yep, I've got a couple of items that I hope I never need. But just in case..
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Old 09-01-2013, 01:53 PM   #20160
George 99
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Location: Kingman, Arizona
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Quote:
Originally Posted by coarsegoldkid View Post
Perhaps this low octane fuel doesn't have the volatility to fire well in a high compression engine.
Kid, ya got it backwards, low octane fires more easily than high octane, hence the problem with knocking under high pressure. I'll go with stuck float valve 'til a more precise diagnosis is come upon.
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