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125sx cdi in a 150sx

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So I decided to convert my 2013 125sx to a 150sx. The one question I have is how will the 125's cdi perform in the 150. Do you think there's enough difference to justify buying a 150 cdi.

Thanks.

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Are you doing a crank too? The 13 150 has a longer stroke than the 125, or doing an Eric Gorr kind of kit? (If they make one?)

If you have to do a crank anyway a 200 would be an option. My 150 became a 200 (sort of) and I love the 200 much more than the 150, although the 150 is an awesome bike....

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Are you doing a crank too? The 13 150 has a longer stroke than the 125, or doing an Eric Gorr kind of kit? (If they make one?)

If you have to do a crank anyway a 200 would be an option. My 150 became a 200 (sort of) and I love the 200 much more than the 150, although the 150 is an awesome bike....

Yes I'm doing the crank.

It's going to be a true 150. Cylinder, Crank, head, power valve.

I was going to turn it into a 200 then a guy locally was selling the 150 parts never used for a good deal.

I also have a 200xcw but I think I like the 150 motor a little better.

So my plans are to use my 2014 150 for a harescramble bike and setup the 13 150 I'm building for an enduro bike then sell the 200.

I should add after looking at the 125 cylinder I can't see how you could bore 4mm out to make it a 150 and have it work right.

Edited by GreenMT_Rider

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Yes I'm doing the crank.

It's going to be a true 150. Cylinder, Crank, head, power valve.

I was going to turn it into a 200 then a guy locally was selling the 150 parts never used for a good deal.

I also have a 200xcw but I think I like the 150 motor a little better.

So my plans are to use my 2014 150 for a harescramble bike and setup the 13 150 I'm building for an enduro bike then sell the 200.

I should add after looking at the 125 cylinder I can't see how you could bore 4mm out to make it a 150 and have it work right.

I loved my bike when it was a 150, love it even more as a 200. The 150's are a ton of fun to ride, lug pretty well, and spool up quick.

It's cool that you can get your hands on parts for a good price, the 200 parts for a conversion usually get pretty expensive.

I'm pretty sure you can't overbore the cylinder, just wanted to mention it in case you weren't sure. The longer stroke is what makes the KTM 150 so much better than the EG 144's imo.

I did a true 200sx conversion from the 150, put an 03 engine in and I love it. If I could justify 2 bikes I'd still have a 150 though.

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