125-200cc Little help with a CR125 please

[Motosportz]

Yes a 165 purpose built pipe would be even better. Is anyone building such a pipe?

Kinda, Walt from this site has FMF mod some KTM 200 pipe parts and send them to him for final welding. They make GOBS of power on the 165 kit. It is kinda big and wraps around more like a 250 pipe...

Here is the FMF 125 pipe and big ass FMF KTM 200 pipe modified for a 165 husky for compairsion

I have seen Tim's pipe in person, beautiful work.

 

[john01]

The pipes Walt had made (KTM 200 FMF Fatty) for the WB165 makes a huge difference. I went from a standard Husky FMF Fatty 125 to the Walt custom 200 pipe and it was across the board better. The 165 didn't come to life without it. It kinda ran like it had a stopped up nose with the 125 Fatty .

 

[Motosportz]

The pipes Walt had made (KTM 200 FMF Fatty) for the WB165 makes a huge difference. I went from a standard Husky FMF Fatty 125 to the Walt custom 200 pipe and it was across the board better. The 165 didn't come to life without it. It kinda ran like it had a stopped up nose with the 125 Fatty .

I also ran both the 125 pipe and the FMF 200 pipe on my 165 and the 200 FMF pipe stomped it. The 125 pipe was interestingly good on top but not near as good bottom and mid.

 

[CelticDude]

LECTRON FEEDBACK!!!

 

[racerjake549]

Where did you get the pipe guard troffer88? People are asking me about them all the time. As for the prone to rust question, you oil them down when you clean up bike and they look good for a long time. Dents are very easy to fix on these pipes. To make them look new again get a bottle of rust remover jel at any auto parts store. Paint this on evenly, let stand for 5 minutes or so and hose off. Dry and oil with WD 40 immediately. First time you ride it will blue up and look greate again.

 

[racerjake549]

I don't know never mounted it up to a 165 but It made 167 pull much harder on top .

Tell me more about your 167. Who built it? josh has been trying to get me to do this for a while. My son races motocross not woods. Curious if it will rev or do you short shift it a bit?

Thanks

 

[racerjake549]

The pipes Walt had made (KTM 200 FMF Fatty) for the WB165 makes a huge difference. I went from a standard Husky FMF Fatty 125 to the Walt custom 200 pipe and it was across the board better. The 165 didn't come to life without it. It kinda ran like it had a stopped up nose with the 125 Fatty .

I would love to see someone try the Scalvini on the 165. The Fatty completely sucks on big bore 125!! I had a Fatty, Pro Circuit, and SST and tested them on yz125 and yz144 mod motor. The Fattymwas perfect on 125 but was totally wrong on 144. Pro Circuit was great on big bore and terrible on 125. SST was best on 125 also.

I talked to the factory today and the Scalvini design was and is designed to work on larger displacement motors. 144-167 range. For instance The ktm 125 pipe IS a 150 pipe. It doesnt provide incredible power gains accross the board but where the stock pipe signs off it keeps revving to the moon, making huge horsepower gain. The same is true for Husky, Yamaha, TM 125. All 3 of these motors are very similar. The Husky and Yamaha are very much alike. For all you guys with the modified CR and WR motors, Scalvini is the best choice. Do the silencer with it. They sound incredible!!

 

[racerjake549]

Tell me more about your 167. Who built it? josh has been trying to get me to do this for a while. My son races motocross not woods. Curious if it will rev or do you short shift it a bit?

Thanks

Sorry, Josh at MAXPOWERRPMS.

 

[racerjake549]

Kinda what racerjake549 said. Smooth power off the bottom and then a nitrous hit about the upper midrange and then hang on! The Scalvini pipe is worth every penny for entertainment value alone. I'm 60 years old and I haven't had so much fun in a long time and I even won my class yesterday!

That upper mid range pull and then that crazy over rev is hard to explain until you have the Scalvini on your own bike and you head out accross the yard and it nearly shoots out of your hands when you hit 3rd gear because a pipe/silencer combo has never made thatnkind of difference.

 

[racerjake549]

I would love to see someone try the Scalvini on the 165. The Fatty completely sucks on big bore 125!! I had a Fatty, Pro Circuit, and SST and tested them on yz125 and yz144 mod motor. The Fattymwas perfect on 125 but was totally wrong on 144. Pro Circuit was great on big bore and terrible on 125. SST was best on 125 also.

I talked to the factory today and the Scalvini design was and is designed to work on larger displacement motors. 144-167 range. For instance The ktm 125 pipe IS a 150 pipe. It doesnt provide incredible power gains accross the board but where the stock pipe signs off it keeps revving to the moon, making huge horsepower gain. The same is true for Husky, Yamaha, TM 125. All 3 of these motors are very similar. The Husky and Yamaha are very much alike. For all you guys with the modified CR and WR motors, Scalvini is the best choice. Do the silencer with it. They sound incredible!!

I must say I have never used the pipe that Walt custom makes. I am sure it is very good also.

 

[racerjake549]

I am thinking about the pipe and silencer for my wr150 but I will enjoy just the lectron for now. Please stop these kind of posts-you are making it too tempting for me and I need time to come up with an excuse for the wife!

"Forgiveness is easier to acquire than permission".

I brought home an FLH Harly one time using this golden rule. It was hell but it worked. Lol! As long as they don't start using it on you!

 

[sabortooth]

Those pipes are nice looking for sure. Are they prone to rust issues?

They look to be made of Stainless.
If so, a scotchbrite is all thats needed to clean it up.

 

[Motosportz]

I would love to see someone try the Scalvini on the 165.

Send me one. I'll do a full write up and let you know how it compares to a modded KTM 200 FMF and KTM 200 Doma pipes on a 165. Then I'll send it back. I have no dog in this fight, have had several husky 165s with many different pipes. I have probably 6 pipes around here including modded KX125, 2 types of Domas and others. I'll be brutally honest though so it better work :>)

The Fatty completely sucks on big bore 125!!

The FMF works much better than stock on the 125cc ones. The modified KTM200 FMF Walt does flat rules (I have not tried a better pipe) on the 165. My KTM200 Doma makes less bottom, more mid and with the Lectron lots of top than the FMF 200 pipe.

I have tried a lot of pipes. Also have 2 FMF SST KTM 200 pipes here I am about to mod for the 165 to try.

fun stuff. IMHO the Lectron makes more power than any pipe and the pipes move power around to where you want it. Some add good power, most just move the power.

FMF KTM 200 pipe on 165 - Most low and mid
Doma KTM 200 on 165 - smooth on the bottom, good mod and top, overall nice woods pipe as it is very smooth and controlled.
KX125 pipe on 165 - Good and feels like a 125 Doma pipe, mid range power
Stock 125 husky pipe - crap everywhere but on top where it screams
FMF 125 pipe - big gains over stock pipe, nice bottom and mid
KTM 200 FMF SST - ?
Scalvini - ?

My feelings only

 

[johnnyboy]

Heres a quick question for you guys
Do your 2007 on KTM 200 EXCs come with the carbunkel screwed to the pipe as in the pic ??
I actually really like this pipe on the 165 but am not sure if its the same spec as the US versions

 

[racerjake549]

Wh

Heres a quick question for you guys
Do your 2007 on KTM 200 EXCs come with the carbunkel screwed to the pipe as in the pic ??
I actually really like this pipe on the 165 but am not sure if its the same spec as the US versions

View attachment 22394

at the heck is that?

 

[racerjake549]

Send me one. I'll do a full write up and let you know how it compares to a modded KTM 200 FMF and KTM 200 Doma pipes on a 165. Then I'll send it back. I have no dog in this fight, have had several husky 165s with many different pipes. I have probably 6 pipes around here including modded KX125, 2 types of Domas and others. I'll be brutally honest though so it better work :>)
I will try to come up with one. I am selling my sons CR in next few weeks. May end up keeping pipe. Would be a great test piece for you. I will keep you posted. How do you think 165 would work for MX, wide open all the time, ring the guts out rider. And do you use 1 or 2 ring piston!


The FMF works much better than stock on the 125cc ones. The modified KTM200 FMF Walt does flat rules (I have not tried a better pipe) on the 165. My KTM200 Doma makes less bottom, more mid and with the Lectron lots of top than the FMF 200 pipe.

I have tried a lot of pipes. Also have 2 FMF SST KTM 200 pipes here I am about to mod for the 165 to try.

fun stuff. IMHO the Lectron makes more power than any pipe and the pipes move power around to where you want it. Some add good power, most just move the power.

FMF KTM 200 pipe on 165 - Most low and mid
Doma KTM 200 on 165 - smooth on the bottom, good mod and top, overall nice woods pipe as it is very smooth and controlled.
KX125 pipe on 165 - Good and feels like a 125 Doma pipe, mid range power
Stock 125 husky pipe - crap everywhere but on top where it screams
FMF 125 pipe - big gains over stock pipe, nice bottom and mid
KTM 200 FMF SST - ?
Scalvini - ?

My feelings only

 

[racerjake549]

They look to be made of Stainless.
If so, a scotchbrite is all thats needed to clean it up.

Raw Steele, no stainless on 2 stroke Scalvinis.

 

[racerjake549]

Say, I need to find paint to match the side cases on CR 125. Has anyone already figured this one out?

 

[john01]

I'm going to try and talk my friend into getting one....who knows it may end up getting tested on my WB165 .

 

[sabortooth]

Raw Steele, no stainless on 2 stroke Scalvinis.

Then one could wipe with brake fluid a few times when hot to turn the color to gun metal blue. Simular to the blue at the welded seams on the one shown.