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Re: 125cc stroker project :D

Posted: Sat Jan 22, 2011 1:32 pm
by Koert
Well here are some pictures from the cases! :D

Re: 125cc stroker project :D

Posted: Sat Jan 22, 2011 1:35 pm
by Koert
Some more pictures! :D

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sat Jan 22, 2011 6:59 pm
by z50r-ghost
Nice work and great pics!! That bore and crank are HUGE!!! :2thumbs:

Re: 125cc stroker project :D

Posted: Sat Jan 22, 2011 7:03 pm
by Koert
Monday I'm gonna visit a local tuner, to see what we can do. :D
He has a Yamaha DT50mx himself 14hp at the wheel :D

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sat Jan 22, 2011 7:19 pm
by Koert
Oh!
I have a question: Do you guys modify or use an other ignition?
Or do you use the original one?

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sat Jan 22, 2011 8:10 pm
by bakaracer
The stock cdi here in the states works fine all the way to at least 15k that I know of.the coil on the other hand,I would use a higher output coil for the higher compression you will be using or use a nology wire set.the spark will have a hard time making the jump with a high reving high compression engine.

Re: 125cc stroker project :D

Posted: Sun Jan 23, 2011 8:54 am
by Koert
So the ignition and flywheel itself stay unchanged?
No inner rotor ignitions? programmable CDI's etc?
Wouldn't it be a good idea to use a innerrotor?
The only problem I can think of is that the cooling would ben tricky...

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sun Jan 23, 2011 4:52 pm
by bakaracer
if you have the money to spend on those stuff,they will for sure help. the rotor kit more than anything. going from the heavy steel mag/flywheel to an aluminum one.that will free up some rpms and let the motor rev up faster too.

Re: 125cc stroker project :D

Posted: Tue Jan 25, 2011 2:38 pm
by Koert
I brought the engine to the tuner yesterday! :D
We desided that we will not weld extra material around the intake, because there isnt enough room for it. :(
I'm thinking about making the holes in the groundplate of the ignition into slots.. that way I can adjust the ignition timing.. :D
The flywheel will allso be lightend (6)

Koert

Re: 125cc stroker project :D

Posted: Tue Jan 25, 2011 3:16 pm
by Wheelman-111
Greetings:

Very nice work Koert!

The last issue to conquer might be getting the cooling shrouds to fit around that tall cylinder. Have you test-fitted them?

Re: 125cc stroker project :D

Posted: Tue Jan 25, 2011 3:50 pm
by Koert
I haven't test fitted the cooling shrouds yet! :nervous:
I didn't really have the time for it, and to be honest I hadn't thought about it yet.. :oops:
I hope the tuner is finisched soon! :D :P
And I'm allso looking for a different front fork...

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sat Jan 29, 2011 12:18 pm
by Koert
Well I have a nice intake manifold now! :D
It is an original Honda CR85 manifold! :D
My carb fits perfectly! :naughty:

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sat Jan 29, 2011 12:22 pm
by Trafficjamz
Does that setup use the stock reeds?

Why not just use the ct manifold and the bigger reed cage?

I am afraid that the stock reed cage will restrict your 125cc setup. :nervous:

Re: 125cc stroker project :D

Posted: Sat Jan 29, 2011 12:28 pm
by Koert
I will be using the CR85 reedcage.
And I don't think that the CR85 reeds will restrict it at all :P
Why I don't use a CT manifold: I have to have it shipped from the other side of the ocean :shock:
And I am a verry impatient person! :P

Koert :coolcruise:

Re: 125cc stroker project :D

Posted: Sat Jan 29, 2011 12:42 pm
by Trafficjamz
Koert wrote:I will be using the CR85 reedcage.
And I don't think that the CR85 reeds will restrict it at all :P
Why I don't use a CT manifold: I have to have it shipped from the other side of the ocean :shock:
And I am a verry impatient person! :P

Koert :coolcruise:
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Too far? :smile: my parts come from Taiwan too.

great build so far :thumbwink: keep up the good work.