> > What Metrakit bore do you have? Is it the SP, Pro Race,
> or
> > Hand Made? Did the bore seize up? Did your mechanic find
> > anything else wrong like overheating, or lack of
> > lubrication from the oil injection? Is the carb adjusted
> > too lean? I'm asking all these questions because
> Metrakit
> > products are pretty good in quality, engine failure is
> > usually due to other causes. I have the Polini Evolution
> > bore in my GP1 and so far after about 6000 miles it
> still
> > runs strong.--vh286
> >
> >
> > > I just received word from my mechanic at derbi in
> miami
> > > that I stuck my gp1. I have the metrakit big bore
> kit.
> > My
> > > bike has about 4000 miles on it and only 2000 of those
> > with
> > > the bb kit. Has anyone heard of a gp1 sticking with
> > such
> > > low mileage? and also should I get a new metrakit big
> > bore
> > > kit or go for another manufacturer?
> > > jeff.
> >
> > > I have a polini kit on my honda, the first kit lasted
> 43,000 mi. of hard riding, you may want to change the gear
> ratio if you tend to ride hard also use a quality synthetic
> 2 stroke oil because it handles the heat better. Go with a
> polini kit.
>
> I have the metrakit sp big bore kit. As far as lubrication that was not the problem, although I recently had a 21mm carb put on. It is possible that the carb needles weren't set up right. Anyways, I am having the engine rebuilt and will take it from there.....jeff.
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