Templar X 250

[Okierider]

Freaking A man, looks good!
I just contacted Joe Henner about a big bore kit, cam and head work. Will report back when I hear from him.

Mr. Henner is having trouble sourcing pistons.
His kit is a true 300-or rather 289cc kit. Last quote I got for it was $350. If he has any pistons left after filling his current orders I’ll grab one.
He also offers a cam to go with the kit ($165+core exchange) and cylinder head porting ($150+shipping).
I’ve asked about just shipping the whole motor to him and having him do the work, but we need to have pistons first.
In passing he mentioned that his big bore kit with supporting mods makes 3-4 more horse. That would put us around 23 horse. For that engine output the Mikuni manual charts say a 26mm carb is the sweet spot, but a 28(like the stock unit) would work.

[Thumper]

Originally Posted by Okierider

Freaking A man, looks good!
I just contacted Joe Henner about a big bore kit, cam and head work. Will report back when I hear from him.

Mr. Henner is having trouble sourcing pistons.
His kit is a true 300-or rather 289cc kit. Last quote I got for it was $350. If he has any pistons left after filling his current orders I’ll grab one.
He also offers a cam to go with the kit ($165+core exchange) and cylinder head porting ($150+shipping).
I’ve asked about just shipping the whole motor to him and having him do the work, but we need to have pistons first.
In passing he mentioned that his big bore kit with supporting mods makes 3-4 more horse. That would put us around 23 horse. For that engine output the Mikuni manual charts say a 26mm carb is the sweet spot, but a 28(like the stock unit) would work.

Only 3-4hp? I guess that is something anyway. The Zongshen NC300 (4 valve, liquid jacket) engine has 74mm x 64mm (279cc) and it is rated at ~25hp. That is stock, with not ported head. I guess the 4 valve head helps.

This suggest that my OTM 265 kit might make 2-3hp, but only if I get a cam and port the head. Hmmm.

289cc kit- $350
cam- $165
head porting- $150

That is about $700 with shipping.

[Okierider]

Originally Posted by Thumper

Only 3-4hp? I guess that is something anyway. The Zongshen NC300 (4 valve, liquid jacket) engine has 74mm x 64mm (279cc) and it is rated at ~25hp. That is stock, with not ported head. I guess the 4 valve head helps.

This suggest that my OTM 265 kit might make 2-3hp, but only if I get a cam and port the head. Hmmm.

289cc kit- $350
cam- $165
head porting- $150

That is about $700 with shipping.

I’m not sure you can compare water to air cooled engines. Drz400 and DR650 make about the same amount of power, just at different places on a graph, despite the 250cc difference. Efficiency is king.
That’s always the way of these things lol.
Bigger bores are great, but it’s only as good as the amount of air you can’t get into it.
I figure without better airflow in and out, a big bore kit is pointless.
But hey, what’s this? Tax returns….

[NCtemplar250]

Originally Posted by Thumper

Only 3-4hp? I guess that is something anyway. The Zongshen NC300 (4 valve, liquid jacket) engine has 74mm x 64mm (279cc) and it is rated at ~25hp. That is stock, with not ported head. I guess the 4 valve head helps.

This suggest that my OTM 265 kit might make 2-3hp, but only if I get a cam and port the head. Hmmm.

289cc kit- $350
cam- $165
head porting- $150

That is about $700 with shipping.

That doesn’t seem worth it. You’d probably be better off to get on a diet and lose 30lbs lol

It would be cheaper and have better returns.

[Okierider]

Originally Posted by NCtemplar250

That doesn’t seem worth it. You’d probably be better off to get on a diet and lose 30lbs lol

It would be cheaper and have better returns.

Lol! I wish it was that easy! I’ll probably put on 30 lbs in the near future when I get the home gym set back up and start powerlifting again.

Eh, if we can get to spitting distance of a crf300l power wise, for less than half the price, that ain’t bad.

[NCtemplar250]

Originally Posted by Okierider

Lol! I wish it was that easy! I’ll probably put on 30 lbs in the near future when I get the home gym set back up and start powerlifting again.

Eh, if we can get to spitting distance of a crf300l power wise, for less than half the price, that ain’t bad.

I have a home gym in the garage for olympic lifting and kettlebell workouts. Nothing better than moving iron. Keeps me sane.

Yeah, I'm definitely looking forward to you guys testing out the big bore stuff, but I think I like the logic of waiting for a couple thousand miles before doing the upgrade. This thing just rides/runs so well already, and I can't wait to see what she's like with more appropriate jetting and a 42T rear sprocket.