i've been all through the links,
and it seems that very few people bore and try again.
it seems like this is a rings kinda job.
but my question is - is this just a steel bore?
isn't new rings what people do for nikasil or eletro bore.
i guess really what i'm asking is:
is it worth the 20 dollars in rings, to not just spend the extra 30 dollars on the piston and go bigger?
do just new rings restore the power?
i hate to drop money into this free spree of mine - but who would of thought scoots would be so much fun.
not me.
boy is my face red.
stay safe
bye
top end - just rings?
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- hrnytrtlsgsxr
- Elite
- Posts: 719
- Joined: Sat Dec 31, 2005 7:00 pm
Spree cylinders are iron. Not sure what the rings are made of, I believe they're cast too (and thus easily broken.)
Many guys realize that by the time you pay for a bore and hone on a Spree, you've exceeded the scooter's value. And since you can often find an engine cheap, or a used matched piston/cylinder cheap, they go that route.
Overbores are needed if the bore is scored or badly worn. If you catch low compression early (below 100 psi or so on these) you can rering it and only need a hone, which can be done at home.
Badly worn cylinders should be measured with a bore scope, but most ppl don't bother with this step, and they only bore if the cylinder is scored. Seems to be working for most, ultimate test is assembled and broken-in compression testing.
Many guys realize that by the time you pay for a bore and hone on a Spree, you've exceeded the scooter's value. And since you can often find an engine cheap, or a used matched piston/cylinder cheap, they go that route.
Overbores are needed if the bore is scored or badly worn. If you catch low compression early (below 100 psi or so on these) you can rering it and only need a hone, which can be done at home.
Badly worn cylinders should be measured with a bore scope, but most ppl don't bother with this step, and they only bore if the cylinder is scored. Seems to be working for most, ultimate test is assembled and broken-in compression testing.
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Thats the conclusion I just came to. It would be 60 dollars for the bore and hone and about 40-60 dollars for the piston and rings.noiseguy wrote: Many guys realize that by the time you pay for a bore and hone on a Spree, you've exceeded the scooter's value. And since you can often find an engine cheap, or a used matched piston/cylinder cheap, they go that route.
I checked on ebay and I found a complete motor with 1400 miles on it. Ended up winning it for 96 bucks. Its a bit pricey but I will have a spare everything.