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Sym dd50 build!!

Posted: Sat Apr 28, 2012 6:56 pm
by Madman
paulpauly7 wrote:yip looking good

that is the kit ive got are you gonna try it out or use your other kit you have

Yeah I'm going to use it!! The ports on this one are really smooth and it's in really good condition better than the kn kikaku one that paid three times as much for!

Re: Sym dd50 build!!

Posted: Sat Apr 28, 2012 10:50 pm
by veedubh20
the pilot jetting and main jet start off 52-150 . then work out down size jet.. 32:1 premix.

because the boost port you made it bigger.

Sym dd50 build!!

Posted: Sun Apr 29, 2012 9:23 am
by Madman
veedubh20 wrote:the pilot jetting and main jet start off 52-150 . then work out down size jet.. 32:1 premix.

because the boost port you made it bigger.

Cheers man I was about to start asking about that!!

Sym dd50 build!!

Posted: Sun Apr 29, 2012 12:47 pm
by Madman
Got the whole engine reassembled today I'm tired and it's late, done about 30 hours work into this build so far!!

Any tips for break in?
Probably get it back in the bike tomorrow.

Sym dd50 build!!

Posted: Sun Apr 29, 2012 11:02 pm
by Madman
Got the bike back together today, will go and get a new spark plug and jets later then I'll try to start it!!

Re: Sym dd50 build!!

Posted: Mon Apr 30, 2012 5:36 am
by paulpauly7
:bowrofl: :bowrofl: nice very nice :bowrofl: :bowrofl: that new fan looks real good :peace:

Sym dd50 build!!

Posted: Mon Apr 30, 2012 6:10 am
by Madman
Time to jet!!

Sym dd50 build!!

Posted: Mon Apr 30, 2012 6:12 am
by Madman
Got her running today!! Did 2 heat cycles sounds really different! Very crisp and responsive!

Sym dd50 build!!

Posted: Wed May 02, 2012 6:58 am
by Madman
Went for a short ride with a 28mm carb but will be swapping back in my 21mm carb tonight. It's raining and bad weather today and maybe tomorrow but I will see if I can get it dialed in!!

Sym dd50 build!!

Posted: Mon May 07, 2012 12:05 pm
by Madman
BOOM BOOM SHAKE SHAKE THE ROOM!

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Re: Sym dd50 build!!

Posted: Mon May 07, 2012 12:51 pm
by veedubh20
it is the 21mm carb that you ran 50mm?

Re: Sym dd50 build!!

Posted: Mon May 07, 2012 1:01 pm
by Madman
veedubh20 wrote:it is the 21mm carb that you ran 50mm?
No I changed to a 28mm and used a 55/145 jet.

Re: Sym dd50 build!!

Posted: Mon May 07, 2012 1:20 pm
by fastplastic
that jetting is rich for the 82... air leak for sure with new gaskets on the bore and intake i would check crank seals, did you reuse them or new and what about air pump plug or gear ground off? and is the rubber boot on the crab good and tight?

Sym dd50 build!!

Posted: Mon May 07, 2012 1:36 pm
by Madman
I did new crank seals boot on carb is tight. Ct intake is my expectation! Oil pump was plugged correctly !

Re: Sym dd50 build!!

Posted: Mon May 07, 2012 9:17 pm
by Downsouthdio
how much break in time did u even have before getting on it..mixture is wrong sumwhere bigtime..you should have had some sort of sign to let you know before that would happen man..take it easy on the motor for a little and gradually work on giving it throttle..plug chop after wot pulls after its broken in a little at least..good luck.. :thumbwink: