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Old 11-04-2007 | 09:32 PM
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Default Not Sure

Went to break in my Hurricane xp today, and kinda wierded out by it. I checked factory setting of high needle valve and it was 3 1/2 turns out. Probably pretty dang close for break in. I opened up the idle a little bit to let her breath better since it would be running a little rich. I got to get it fired up, and the fist pull after primed and it fires right up, idles for 4-5 seconds then dies. I continue trying to start it, and it acts as if it wants to start every pull, but she just wont fire. Kinda feels like i'm pulling hard on the starter cord, so I pull the glo-plug and there is quite a bit of fuel in the head. So I flush it out, and it fires up again for about 2-3 seconds. I know it has to be flooding itself out, but what scares me is I don't want to lean it too much for break in. I even had the high needle valve down to about 23/4 to 3 turns out. To me that is pretty lean for break in. But I do not know much about this size of engine. the manual says 1 1/4 turns out for normal operation. I'm kinda wondering if thats not relatively right. Maybe about 2 1/2 turns out would be a good break in. Anybody had experience with this. I know Ehroof said I would have to lean it out a bit to get it to run, but lean it out how much. I know its flooded immediately after it dies, because of the amount of fuel coming from the head and exhaust. It pulls hard right after she dies, so it has to be locking up. Now if I have to lean it out thats fine, every engine is a little different. Can anyone tell me how many turns out should the low end needle be set? It has to be flooding because if I shut the needle valve completely off, after a couple of pulls it will run the remainder of the fuel out no problem.

Wolv.
Old 11-04-2007 | 11:58 PM
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Default RE: Not Sure

You could use a temp gage to break it in. Just turn the needle until you can get it idling without loading up fuel to fast let the ungine run few 2 minutes reving it up a little every ten seconds or so, then check temp. If you are around 200 your ok. If it starts to go to high shut off back needle out a little, start over.
Old 11-05-2007 | 06:45 AM
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Default RE: Not Sure

turn your low end in a bit. It will help on break in.
Old 11-05-2007 | 07:12 AM
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Default RE: Not Sure

Yah dont mess with the high end needle yet. Turn in the low end and when you get it started you have to blip the throttle to clear it out. Keep the glow ignitor on for a bit. This will help. Then you can turn the idle up to keep it running. It takes a bit to get these running at first and really dont get that easy till its broke in and tuned. Just be patient.
Old 11-05-2007 | 10:01 AM
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Default RE: Not Sure

I was told to keep the ignigter on for at least a 30 seconds so that it got a lil warmer and i belive i may be wrong but the low speed should be flush with the coller.
Old 11-05-2007 | 10:18 AM
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Default RE: Not Sure

I never took the glo-plug igniter off, and I know what the adjustments should be. Just not understanding why its flooding so easily. I just very sceptical about tuning the high end too far lean. Maybe I'll take clermont's advise and lean the low end.
Old 11-05-2007 | 10:28 AM
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Default RE: Not Sure

if its hard to start and flooding out, lean out the low end a bit. With the low end so rich, there is too much fuel which is bogging it down and making it stall like you stated.
Old 11-05-2007 | 10:53 AM
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Default RE: Not Sure

here's another qustion for you. How much would you lean it out. I've did some reading last night on this engine, except it was the pro version. It says the low end and high end should be 3 turns out for break in. Cutting the low end is basically just like cutting the high end. I mean your still cutting fuel right?

Wolv.
Old 11-05-2007 | 05:50 PM
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Default RE: Not Sure

When you cut the low end your cutting the venturies ability to draw in enough fuel basically. When you cut the high end your actually cutting the amount of fuel flowing into the ventury. I'm not really sue how to put the fundamentals of how a carb works into words maybe someone else can help explain it alittle further. I could show you, but I can't put it into words very well.
Old 11-05-2007 | 05:58 PM
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Default RE: Not Sure

Yeah that would be a tough one to explain...I'm not sure I could explain it very well either... I'm going to try and lean it, but i'm going to find a temp gun before I do. This motor seems likes its going to require a little extra attention. So I want to be careful with it. I prolly didn't do a good thing by cutting the fuel, and letting the engine burn the rest out of it yesterday when storing it. Prolly rev'ed up a little to high before break-in. But hey i wanted to get some after run oil in it, so it could sit forawhile.

Wolv.
Old 11-05-2007 | 08:22 PM
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From: Clermont, FL
Default RE: Not Sure

actually after turning in the low end a bit, these are the easiest motors to break in. I'm sorry your having such a hard time.

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