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Loose Low Speed Needle Valve on MVVS .40

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Old 02-26-2003, 03:48 AM
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murrat
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Default Loose Low Speed Needle Valve on MVVS .40

I know there are a few guys on this forum who use MVVS engines for their diamond dusts. Has anyone else had a hard time keeping the bottom end/low speed needle from loosening off due to high RPM vibration?

I have used some blue lock-tight, but that only last for a few weeks.

I'm sure I am going to have the same problem with my new MVVS .40 GRRT as well.

Any helpful suggestions or tricks to resolving this?

Thanks in advance
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Old 02-26-2003, 05:12 AM
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FlooredCOBRA
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Default Loose Low Speed Needle Valve on MVVS .40

I noticed on my GRRT it did the same on my high end. All I did was take out my needle and cut a small piece of fuel tubing and stretch it over the needle and put back on the carb. It was a pain to stretch over carb input for needle but once on it kept from any leaks and any movements.

Give it a shot it worked out for me.
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Old 02-27-2003, 12:34 AM
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Carl.E
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Default Loose Low Speed Needle Valve on MVVS .40

My GRRT's low end needle did that as well. It seemed to be a very loose fit. Once I got it set right, I put a drop or 2 of thin CA on the theads. If I need to move it I can, but it stays where it needs to most of the time.

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