Derbi break in

Dan O /
dgo64
May 07, 2009 08:34PM

I finally got a chance to take the new derbi out for a ride. I have been starting it on the stand and letting it warm up for a pre break in. I started it tonight let it warm up and started going around the block and the pickup is insane. Never felt that much power from a moped. About half way around it makes a weird pfffffft discharge noise stalls then starts right back up like nothing happened. Is my decompression valve not adjusted and could it be leaking.

It has a new Metra 65 with a 16mm Dellorto PHBG Zen pipe and a TJT setup

Dan

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Re: Derbi break in

) Cupermcnewbster ( /
boardmonger
May 07, 2009 09:14PM

just curious, did you go cast iron? Derbis are awesome, but i'm not sure why its stalling. Make sure the decomp is adjusted properly

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Re: Derbi break in

Dan O /
dgo64
May 07, 2009 09:19PM

It's not the cast iron kit. Whats the best way to set the decompression?

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Re: Derbi break in

wheels /
pvtjoker
May 07, 2009 09:27PM

Mine did that when the condenser went bad.

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Re: Derbi break in

Noah K /
juggernaught
May 07, 2009 10:17PM

Are you running flat / pyramid / or piston port? And just curious what jet do you have in there?

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Re: Derbi break in

Vic /
May 07, 2009 10:24PM

Flat reed nikasil kits come in 65 and 75 zack.

I doubt the decomp has anything to do with it. Just leave a little slack in the cable and it will be fine.

Mike is right, check your ignition system.

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Re: Derbi break in

Dan O /
dgo64
May 07, 2009 10:25PM

Flat reed I think its an 84 jet

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Re: Derbi break in

) Cupermcnewbster ( /
boardmonger
May 08, 2009 02:54AM

yea vic, there's three cylinders, one cast iron and 2 nikasil. I've been eying the cast iron for my herbi build, but thats off topic here.

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Re: Derbi break in

RABASA /
shaw
May 08, 2009 03:04AM

Campeona Del Mundo

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Re: Derbi break in

bryan /
thefishstop
May 08, 2009 03:57AM

to big of a plug or point gap

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Re: Derbi break in

Dan O /
dgo64
May 08, 2009 03:00PM

Going to upjet, the plug was just a little to lean then reset the plug gap. Are the condensors the same as Puch?

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Re: Derbi break in

Jesse -B /
jtbechtold
May 08, 2009 08:39PM

just run an external condenser from napa.

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