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Old 03-14-2022, 02:28 PM
Hotrod460 Hotrod460 is offline
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Default 2003 EC250 2 stroke What top end kit to buy?

Are the aftermarket top end kits on ebay any good? Dumb question?
Wish BBR made a kit.
What all should i replace when re-doing the too end?
How to check of reeds are good etc?.
This bike has been extremely reliable for many years! Even has a plate.
Appreciate any advice and parts sources.
What jetting is preferred and needle? I ride in WA state above sea level 500-2000?.
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Old 03-14-2022, 06:10 PM
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Gasser Nate Gasser Nate is offline
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Jetting is a long one to answer, do a search on here. I like the Suzuki needles. Very smooth power delivery.
Top end kits don?t really exist for Gassers, I really rate the Wossner forged Teflon coated pistons. Try to stick to genuine gaskets. Some aftermarket ones are junk.
Check the squish and correct as necessary.
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Old 03-14-2022, 06:24 PM
Jacob 'Berg Jacob 'Berg is offline
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Here is a link to a kit that has all of the parts necessary to re-build the top end on your bike. You will need to match the piston size to your cylinder. If the cylinder needs a re-plate, send the piston (A size preferable) with the cylinder to the plating company.

https://www.ebay.com/itm/12177392254...0AAOSwU91ad0zw

Re: reeds. If they are chipped at all, or if you can see daylight between the petals, they should be replaced.
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