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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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  #1  
Old 11-04-2019, 08:58 AM
flatout111 flatout111 is offline
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Default Truly converting a 17 EC250 to a EC300

Hey guys, so I am contemplating getting a 2017 EC250. When I planned on getting a pre-owned second bike I said my 2 per-requisites were e start and it be a 300. Check on the e start. So I worked out a great deal for this bike but it is a 250 which, I know, are great, but I do prefer the more lugging capibility of the 300. I also think it is better for the extremely technical.

So my question. To truly convert it to being the exact same as a EC300 what has to be done? I want it to be just like the 300 in all aspects, with the exception of paperwork, of course. I need to factor this conversion, if can be done, in on the final costs to make my decision.

Any help would be appreciated. Thanks.


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Old 11-04-2019, 09:54 AM
Jacob 'Berg Jacob 'Berg is offline
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To my knowledge, you will need the 300 cylinder, piston, and head.
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Old 11-04-2019, 10:51 AM
risk74 risk74 is online now
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Yup, just the cylinder, head and piston. I've turned several 250s into 300s. If you're in the market, I have a replated cylinder, piston and S3 head for sale with low hours for sale. PM me for details and pictures.
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Old 11-04-2019, 11:21 PM
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Gasser Nate Gasser Nate is offline
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As above and obviously jetting, but do a check on the cdi as well. I think they are the same on gassers though.
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Back on a gassy! 2018 EC300! 🤘
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Old 11-20-2019, 02:56 PM
Jacob 'Berg Jacob 'Berg is offline
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Quote:
Originally Posted by Gasser Nate View Post
As above and obviously jetting, but do a check on the cdi as well. I think they are the same on gassers though.
I know the CDI is the same for the 18+ gassers. The dealer let me use a 300 CDI while the CDI from my 250 was sent off to be re-flashed.
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Old 12-02-2019, 11:11 AM
flatout111 flatout111 is offline
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Ended up getting a like new 300 cylinder from Jeff at Hall's Cycles plus a new piston and gaskets. This 300 cylinder was from a guy who wanted to do the opposite. He wanted to go from a 300 to a 250 so this will be perfect and about same year, too.

My mechanic wanted to know if the manual has torque values or assembly tolerances but I don't have a manual.

Can anyone assist with this. Jeff said it should bolt right on with no issues but I think my mechanic just wants to be sure.

Thanks for any assistance.
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Old 12-02-2019, 12:45 PM
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gasgasman gasgasman is offline
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Torque specs are the same in the '18 manual.

https://www.dropbox.com/s/i93vw77r9k...anual.pdf?dl=0
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