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Offline netranger6

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What's up
« on: March 24, 2017, 09:23:52 AM »
New guy to the board, picking up a 2003 500 in great shape, with title.  Live 2 hours South of Houston, and bike is coming from Wyoming.  Gonna rejet.   Having my Kawi guy do it, any suggestions?  Basically it's coming jetted at 5000 feet or so, and I am sea level.  Also, he ran BelRay as a pre mix, just wondering what is the best all around oil.  Bike has Gnarly Desert on it and Boyesen Rad valve.  Man, so many questions.  Coming with extra sprockets and chain, new tires and old tires, and extra wheel with a d**n near new paddle on it.  Top and bottom have been done in last few years, with low use.  I'm pretty stoked, as I've been without a bike for a while, sold me 12' 450F.
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Offline sandblaster

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Re: What's up
« Reply #1 on: March 24, 2017, 10:38:38 AM »
Welcome aboard!
Jetting will depend on the porting and overall engine condition.
Good stock running engine at sea level with a aftermarket pipe and a clean air filter.
91 pump gas at 40:1
P55
M168
Stock needle, 3rd position
Air screw 1.5-2 turns out.
That is a starting point.
Throttle chops will confirm jetting at top end.

For premix oil I like Motul 800 at 50:1
Others have their preferences...  :evil:
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline netranger6

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Re: What's up
« Reply #2 on: March 24, 2017, 11:13:03 AM »
Yeah, I need input on that pre mix because once I get it, it's going for a tune. Been out of the 2 stroke game for a long time, so feel like a newb .  Research tells me Asmoil, Maxima, and Motul.  Expense isn't an issue.  Plan on running pump 93.  Or pure fuel if I can find it.  What about adding fuel treatment for ethanol?
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Offline sandblaster

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Re: What's up
« Reply #3 on: March 24, 2017, 11:49:53 AM »
I've never used additives so your on your own there unless someone else has experience.
I use what we call Clear Gas 92.. non Ethanol.
There are many many good oils out there.
A lot of top guys including Alward25 use Amsoil Dominator.
Once my stash of Motul 800 runs out I'm gonna give it a whirl.
As far as the mix ratio, listen to what the manufacture says..
No... you don't need to run 32:1 any more :-)
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline reklessj

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Re: What's up
« Reply #4 on: March 24, 2017, 01:30:24 PM »
Love the redline oil, especially the smell!!! 😷
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My rides: 1994 KX500, 1988 T4, 1998, ZXI 1100 JETSKI, 2003 MOUNTAIN CAT 900
WIFES (Baby Fiver) rides: 2004 KTM 105SX,1992 LT250R, 1995 ZXI 900 JETSKI,  2011 RMK 600
SONS ride: 1995 YZ125,2002 RM 250
other rides: 2007 RMZ450 RC Ediition, 2003 RMK700

Offline netranger6

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Re: What's up
« Reply #5 on: March 24, 2017, 01:49:23 PM »
so no need to be 32:1 as per the manual?  I mean s**t, that's pretty safe.  Not made of money, so would hate to fubar the mix up and have negative effects.
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Offline sandblaster

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Re: What's up
« Reply #6 on: March 24, 2017, 03:39:37 PM »
Older oils had to be run at 32:1.
But modern oils Don't.

Ask these guys..  :lol:



This guy is running Motul 50:1 and not many people wind the springs out of their bike like he does...



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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline netranger6

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Re: What's up
« Reply #7 on: March 25, 2017, 01:56:08 AM »
Alright cool. Back to fuel. If all I have immediately available to me in South Texas is pump with 10 percent ethanol, is there anything special u should do. Treat it?  Or mix it run. No worries?
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Offline sandblaster

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Re: What's up
« Reply #8 on: March 25, 2017, 05:27:58 AM »
Hopefully guys in your area will chime in as I have never ran your fuel.
In Oregon and California a lot of guys are running a blend of pump gas and race gas.
The ratios I have heard of are 50/50 race to pump gas and lower... Some are running 1 gal of race gas to 4 gal of pump gas.
So unless someone has experience in your area start out 50/50 and see what happens.
You can lower the race gas percentage until you find the happy spot...

Don't forget to do your throttle chops to insure that your not running lean on top...
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline reklessj

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Re: What's up
« Reply #9 on: March 25, 2017, 06:39:36 AM »
I'm in Cali I run 50\50 pump 91 octane and VP C12. You will have to mess with jetting (runs richer) but worth it two strokes love lead
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My rides: 1994 KX500, 1988 T4, 1998, ZXI 1100 JETSKI, 2003 MOUNTAIN CAT 900
WIFES (Baby Fiver) rides: 2004 KTM 105SX,1992 LT250R, 1995 ZXI 900 JETSKI,  2011 RMK 600
SONS ride: 1995 YZ125,2002 RM 250
other rides: 2007 RMZ450 RC Ediition, 2003 RMK700

Offline sandblaster

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Re: What's up
« Reply #10 on: March 25, 2017, 07:02:10 AM »
Exactly what Sean is running in the Beast and Groot.
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline netranger6

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Re: What's up
« Reply #11 on: April 01, 2017, 10:38:04 AM »
Ok, help me here.  Stuck on oil now, and need to decide.  Amsoil, or just old school.  I'm not gonna have this thing would up in top RPM every where I go.  I want protection for all around twisting of the throttle, good for the power valve and bottom end area.  Just too d**n many to choose from.  Previous owner was rocking Bel Ray.
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