nitro tuning question

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10-07-2006, 09:29 AM

#31

ridgewaybodies

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That is the pinch bolt that secures your carb to the crank case.

10-07-2006, 10:06 AM

#32

captain america

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So it isn't some sort of mid-speed needle then?
Sorry, just want to double-check

10-07-2006, 10:18 AM

#33

ridgewaybodies

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No, not a needle at all. Your carb just has two needles, a HS and LS needle.

10-07-2006, 05:47 PM

#34

jbrow1

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Quote:

Originally Posted by captain america

In so much as this is a thread concerning the P5X, I have a couple of quick questions:what the heck is the screw circled in red? I figured I'd ask before doing anything to it, as there is no mention of it in the documentation that came with my mill.

Second, how do I go about removing the carb assembly? It seems to be impossibly-hard to remove, and I'd rather not force it in case I'm doing something wrong

The P5 is a two needle carb. Just a high speed and low speed, and also the idle screw but that isn't a needle. What you have circled is the bolt that keeps your carburator locked to the engine block. If you loosen that bolt you will be able to remove the carb quite easily. Once you take it off you'll see exactly how that bolt (screw) retains the carb.

10-07-2006, 06:00 PM

#35

jbrow1

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Quote:

Originally Posted by B0nzz

Although, I would like some more info on the MSN if you have it.
From what I gathered it actually changes the barrel to go from the LSN to the HSN at a different time. Does this mean after I get it to run, sounding good on the top, and running hot, I can adjust the MSN to kick in the HSN later and run the bottom a little fat for cooling? What direction does the MSN need to go say for a longer duration on the LSN
Ca

Again the middle needle and the low speed needle have to be adjusted as a pair if you are going to use it. Personally I wouldn't recommend it myself as just turning two needles is difficult enough to keep track of. Your low speed needle setting also works hand in hand with your idle setting. I would say no you can't really change the middle needle (seat) and run the low speed fat for cooling. Your low end is either fat, lean, or good. If you run a fat low end, it's still gonna be fat on the low no matter where your power band kicks in. If you bash around and drive alot around mid to full throttle your cooling will be mostly done with the high speed needle regardless of where the low or other needles are set. I see what you are getting at but I don't think it'll really work.