Complete, or mostly complete. I don’t need the cylinder, piston or head. Message me on here or text me 443nine4four70two7. I’ve got $$ ready to go!
Alex
Looking for derbi pp engine
Re: Looking for derbi pp engine
Don’t mind me but Im looking for a flatreed too
Re: Looking for derbi pp engine
Bump- I’m finna put this thang on it.
Re: Looking for derbi pp engine
Dude, if you can't find one "let me get that" LOL, free bump.
Re: Looking for derbi pp engine
You do you, but that shit is not gonna work on a derbi without chopping it up. And even then it will probably roast itself in short order. Those bottom ends don’t really like high power, they snap the output shaft even with a 60 kit. Just get a euro kit and keep that autisa on the shelf for a rainy day.
Re: Looking for derbi pp engine
> Daniel '' Wrote:
> -------------------------------------------------------
> You do you, but that shit is not gonna work on a derbi without chopping
> it up. And even then it will probably roast itself in short order. Those
> bottom ends don’t really like high power, they snap the output shaft
> even with a 60 kit. Just get a euro kit and keep that autisa on the
> shelf for a rainy day.
Piston ports are weak? Pretty sure I've seen a few eurokit/gila kitted ones. Heck, Jcams 95cc build was a pyramid reed, which is almost the same no?
Re: Looking for derbi pp engine
I’ll have to chop it up? Like how ?
Re: Looking for derbi pp engine
If you are talking about fins bumping into the frame, I’m not putting it on a variant. I’m literally building a bike around this kit.
Re: Looking for derbi pp engine
> Alex Rice Wrote:
> -------------------------------------------------------
> If you are talking about fins bumping into the frame, I’m not putting it
> on a variant. I’m literally building a bike around this kit.
is the kit designed for a bike with the same stroke as PP, 43mm? If not, then you may have to deck the cylinder/alter the ports
Re: Looking for derbi pp engine
It’s a puch kit so yea same stroke
Re: Looking for derbi pp engine
i Have a g3 frame to put it on.. let’s make it happen who got a peepee for me
Re: Looking for derbi pp engine
Didn’t say it’s a weak engine, but if you go tripling or quadrupling the h.p. of any machine there will be issues that come up. And considering how piston port parts are pretty hard to find these days any failure is catastrophic.
As for mounting a puch cylinder on a derbi, it requires opening the 2mm or so. On my eurokit with a head gasket before I went to a o ring, it did not like to seal and would occasionally blow out by the stud hole. I bet if I used a derbi metra head it would have been better. Oh and one more thing, starting a 74cc derbi with no decomp sucks! I got my starter clutches so dialed and it was still a bear, you walk next to it and then when it starts to engage you have to step on the pedal and put all of your weight down.
TLDR; get a flat reed and bolt on a metrakit. Easier, more fun and cheaper.
Re: Looking for derbi pp engine
> Daniel '' Wrote:
> -------------------------------------------------------
> Didn’t say it’s a weak engine, but if you go tripling or quadrupling the
> h.p. of any machine there will be issues that come up. And considering
> how piston port parts are pretty hard to find these days any failure is
> catastrophic.
>
> As for mounting a puch cylinder on a derbi, it requires opening the 2mm
> or so. On my eurokit with a head gasket before I went to a o ring, it
> did not like to seal and would occasionally blow out by the stud hole. I
> bet if I used a derbi metra head it would have been better. Oh and one
> more thing, starting a 74cc derbi with no decomp sucks! I got my starter
> clutches so dialed and it was still a bear, you walk next to it and then
> when it starts to engage you have to step on the pedal and put all of
> your weight down.
>
> TLDR; get a flat reed and bolt on a metrakit. Easier, more fun and
> cheaper.
^This^
I have piston port engines on the shelf with puch Gilas, mk80, eurokit that are completely built that I got tired of starting that I replaced with puch polini engines. The pedal disengagement is the weak link on these and I’d rather not stress out the internals more than need be. That being said I do have one engine I might get rid of off a running variant I had. Rebuilt and
De-nubbed with a Athena 70 big reed kit. $420 shipped
Re: Looking for derbi pp engine
I didn’t think of the starting problem.. not a fan of the pull starters either. I imagined a variator being the best way to take full advantage of the 10+hp you supposedly get out of the kit.
Re: Looking for derbi pp engine
do it, they just suck to start.
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