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New motor build ?
I'm starting to do a build on a Pitster. Looking to build a 125cc motor for motocross , cross country and trail riding. What lower end is every one running ? The RS or HO. The HO I'd the one that comes with klx style head stock and RS has the Honda style head.
I'm leaning towards the Takegawa head and possibly the cylinder also. Just not sold on the V2 head with the epoxy in the ports.
Any input would be great. If you guys can give me some insight on what your running , who your builder is . I would greatly appreciate it. I've dealt with Terry at firepower quite a bit with the 2'xtremes we have but this Pitster motor is a little different animal. Thank you. Also I want to run the decompression cam.
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The only difference between the Pitster and Xtreme engine is the stupid centrifugal clutch setup on the Xtreme. Other than that they're all basically the same concept.
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Im sure Terry can build it for u
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Motor
No doubt Terry can build it . It's just a matter of how long it will take. I don't know how long it takes u guys to get stuff from him. I don't want to bash the man but he has had a billet clutch of mine and a 54 mm piston on order for 2 months.
Have any of you guys ever dealt with Matt at Pitster?
Also what are you cross country guys doing for oil coolers? Thanks Brian
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sure Terry is a 1 man band so good things will take time, plan accordingly. We run a 400ex cooler with modded lines, cant beat it dollar for dollar.
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I would have to agree.....Terry.
He built my daughters and sure we had some hiccups. But overall, he did a good job at a fair price.
Not sure if it can compete in mx with some of those two stroke 90's. But it's a heck of a lot faster than our Raptor 125.
However, we started running it in the GNCC and it seems to be competitive.
We'll just have to see the reliablity factor.
But just let Terry know you're in a hurry.
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Motor build
I talked to Rob Riden. His son Randy runs the GNCC and other cross country series. He has been dealing with Matt at Pitster Pro. I think we are going to go with his combination of 125 HO motor and takegawa head. Not sure of hp numbers but it seems to be very durable. They do a little porting of the oil port in the head to help bath the head in oil. I'll keep you guys posted on how it runs . Thanks for all the input.
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Motor
Ended up picking up a Firepower motor. Just wanted to say thanks for all the input. Still might try the takegawa head on the next motor. What jetting are some of you guys running in the Midwest with the Mikuni VM 26 606 carb? Or what other carbs are some of you running?