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I have 1967 Gilera 106 Sears. Earlier I got it to run for about a minute then it would die. I tried adjusting the fuel and air intake but now I have this. Does anyone have advise on 60's Gilera's from

I have 1967 Gilera 106 Sears. Earlier I got it to run for about a minute then it would die. I tried adjusting the fuel and air intake but now I have this. Does anyone have advise on 60's Gilera's from sears? Please help.

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Check the fuel pipes make sure there is no blockages, take the carb off and clean with carb cleaner and put the mixture back to the original

Posted on Apr 21, 2013

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Air Screw 1.5 turns out seems to work ok

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Just a hunch, had this happen to a bike of mine years ago, could be the piston rings are gettting ready to go(wore down). What happens is when the quad is cold the rings expand tight into the cylinder walls allowing it to get full compression and run ok. When it heats up they shrink allowing the slightest amount of give which in turn will cause you problems similar to what your describing.

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LIGHTLY seat the throttle screw and air screw then turn both screws one and one half turns outward.This is the factory setting.

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SOURCE: Can't get my bike to stay running!

with hand off ur not gitten enuf sucktion to pull fuel into carb-- the butterfly valve probly needs cleanin--get a clymer manual and work on the carb-the book is detailed in rebuild and diagnosis-petro needs more than just a line!

Posted on Apr 08, 2010

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Hi, Stevan_mitro engine "BOG" is mainly caused by a rich air and lean fuel condition but it can also be caused by a lean air and rich fuel condition this situation rarely occurs and is only caused by the misinformed weekend warrior that owns a toolbox.
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air that leaks into your system can become more obvious.
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Do not go and start adjusting anything at this point. It ran fine before. There is something wrong with the assembly or a component. Do not adjust your floats. Get it back to where it was. The moment you start tweaking everything is the moment you lose OEM settings which are a must-have for fine-tuning and maximum performance.
Fine-tuning your carburetor and multi carb syncing come at the very end following the proper procedure established by the Carburetor Gods.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
GILERA DNA 50CC BOGGING DOWN SOMETIMES WHEN RIDING HELP
https://www.o2w.co.uk/tagforum/viewtopic.php?t=9147
Gilera DNA 50 Workshop Manual
Gilera DNA 50 2006 Spare Parts MSP
https://www.download-geek.com/download/Gilera%20Dna%2050%20Owner%20Manual.html?aff.id=8767&aff.subid=510

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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