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Old 07-09-2008, 03:31 AM   #15046
DevilofSky
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Quote:
Originally Posted by BurnieM
Are you sure its the bike ?
.
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Old 07-09-2008, 08:46 AM   #15047
SourKraut
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DR Experts,

I have begun having hot starting problems with my '03 DR650SE and am unsure where to look for the problem. It starts from cold perfectly but the only way I've gotten it to re-start hot is by pinnning the throttle wide open and it takes 10 secconds of cranking & slowly catching to start.

I checked the plugs and they were clean but not a dry tan color that I'm used to seeing. Not fouled at all though. I leaned it out some (have the extended kientech mixture screw) and that made no difference. I don't think it is either switch (clutch/sidestand) because it does start but only if I have a fully charged battery.

It is jetted/airbox opened up/K&N filter w/ kientech foam pre-filter and has run like a champ ever since doing that work, until now.

It is possible that the fuel is boiling/vapor lock? Not sure why that would suddenly show up though?

Any ideas what to look at next?
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Old 07-09-2008, 09:31 AM   #15048
bigdon
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Quote:
Originally Posted by SourKraut
DR Experts,

I have begun having hot starting problems with my '03 DR650SE and am unsure where to look for the problem. It starts from cold perfectly but the only way I've gotten it to re-start hot is by pinnning the throttle wide open and it takes 10 secconds of cranking & slowly catching to start.

I checked the plugs and they were clean but not a dry tan color that I'm used to seeing. Not fouled at all though. I leaned it out some (have the extended kientech mixture screw) and that made no difference. I don't think it is either switch (clutch/sidestand) because it does start but only if I have a fully charged battery.

It is jetted/airbox opened up/K&N filter w/ kientech foam pre-filter and has run like a champ ever since doing that work, until now.

It is possible that the fuel is boiling/vapor lock? Not sure why that would suddenly show up though?

Any ideas what to look at next?
Some of the bikes seem to do this when hot and low on gas. Filling the tank will cure the problem if that is what is causing it.
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Old 07-09-2008, 10:44 AM   #15049
SourKraut
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Quote:
Originally Posted by bigdon
Some of the bikes seem to do this when hot and low on gas. Filling the tank will cure the problem if that is what is causing it.
A full tank didn't help, unfortunately.
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Old 07-09-2008, 10:59 AM   #15050
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tight valve. Probably exhaust side.
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Old 07-09-2008, 11:18 AM   #15051
SourKraut
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Quote:
Originally Posted by pookiebear
tight valve. Probably exhaust side.
Thanks - I will check them and see.
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Old 07-09-2008, 11:18 AM   #15052
StromBoni
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Quote:
Originally Posted by Brewcelero
What seat pad is that? Is that the Alaskan Sheapskin, or something else?
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Old 07-09-2008, 11:32 AM   #15053
DevilofSky
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someone knows if DR650 FMF Q2 Series Exhaust

(http://www.kientech.com/DR650FMFQSE.htm)

is omologueed in europe/italy?

otherwise what exhaust advice me?
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Old 07-09-2008, 11:53 AM   #15054
Krusty ...
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Quote:
Originally Posted by DevilofSky
someone knows if DR650 FMF Q2 Series Exhaust

(http://www.kientech.com/DR650FMFQSE.htm)

is omologueed in europe/italy?

otherwise what exhaust advice me?
I'd check with Hessler's in Germany. They carry a lot of accessories for the DR650...
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Old 07-09-2008, 11:58 AM   #15055
Krusty ...
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Quote:
Originally Posted by DevilofSky
someone knows if DR650 FMF Q2 Series Exhaust

(http://www.kientech.com/DR650FMFQSE.htm)

is omologueed in europe/italy?

otherwise what exhaust advice me?
I'd check with Hessler's in Germany. They carry a lot of accessories for the DR650 [SP46B]...
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Old 07-09-2008, 11:58 AM   #15056
DevilofSky
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Quote:
Originally Posted by Krusty ...
I'd check with Hessler's in Germany. They carry a lot of accessories for the DR650...
uhm... no.. they have Laser and Leovince

ps. my DR650 is SP 44
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Old 07-09-2008, 12:08 PM   #15057
Krusty ...
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Quote:
Originally Posted by DevilofSky
uhm... no.. they have Laser and Leovince

ps. my DR650 is SP 44

As another alternative, you might look into fitting a muffler from a Suzuki GSXR1000, as outlined here:
http://www.thumpertalk.com/forum/sho...d.php?t=621199


Dynomometer tests show this to be a good swap. Lighter and better flowing than stock. Plus, it says "Suzuki" on the side, if that matters to you...
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SUZUKI DR650SE INFORMATION INDEX
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Old 07-09-2008, 01:00 PM   #15058
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no thanks...
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Old 07-09-2008, 01:07 PM   #15059
LukasM
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Quote:
Originally Posted by DevilofSky
someone knows if DR650 FMF Q2 Series Exhaust

(http://www.kientech.com/DR650FMFQSE.htm)

is omologueed in europe/italy?

otherwise what exhaust advice me?
First of all it won't fit your bike, it is for the DR650SE (SP46), 96+. It is also not E approved, like pretty much every exhaust made in the US.

As mentioned, Hessler is a good source to find parts in Europe (although I didn't have a good experience with him - very high prices and month long waiting times for parts).

Quote:
Originally Posted by Krusty ...
As another alternative, you might look into fitting a muffler from a Suzuki GSXR1000, as outlined here:
http://www.thumpertalk.com/forum/sho...d.php?t=621199

Dynomometer tests show this to be a good swap. Lighter and better flowing than stock. Plus, it says "Suzuki" on the side, if that matters to you...
Quote:
Originally Posted by DevilofSky
no thanks...
I would think about this again. There is a much smaller selection of exhaust for the old DRs, especially if you want homologated. They will cost you almost 300.

The GSXR muffler has all the above mentioned advantages, plus it has an "E" and Suzuki marking on it and looks like stock, so the police is not very likely to say anything.

Thats is why I am going to put the GSXR system on my bike.
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Old 07-09-2008, 01:18 PM   #15060
NordieBoy
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Quote:
Originally Posted by SourKraut
DR Experts,

I have begun having hot starting problems with my '03 DR650SE and am unsure where to look for the problem. It starts from cold perfectly but the only way I've gotten it to re-start hot is by pinnning the throttle wide open and it takes 10 secconds of cranking & slowly catching to start.

I checked the plugs and they were clean but not a dry tan color that I'm used to seeing. Not fouled at all though. I leaned it out some (have the extended kientech mixture screw) and that made no difference. I don't think it is either switch (clutch/sidestand) because it does start but only if I have a fully charged battery.

It is jetted/airbox opened up/K&N filter w/ kientech foam pre-filter and has run like a champ ever since doing that work, until now.

It is possible that the fuel is boiling/vapor lock? Not sure why that would suddenly show up though?

Any ideas what to look at next?
Blocked tank breather?
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