> > > > 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.
> >>>> Well the carb should have been put on with the bore
> kit, the oil pump should be set "full open" which gives a
> rich mix at idle, what center spring did he use? also
> clutch springs? and what gear ratio? these are just the
> basics your mechanic should know, and who was that guy that
> posted a 90 mph gp-1 well it can't be done with the parts
> you boys forgot to list...
>
Finally my gp1 is running perfect. new head, wheelies off the line and tops out at about 65. I love it...
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