@@highlandcycles I just looked at that video about the top end rebuild it’s on the two stroke for some reason I thought it was on a 250 four stroke . I think I’m going to go with the 3 1/4 inch for my 78 mm piston.
Do the bolts at 8:24 hold down the round part on powervalve tightly? Mine have a bit of play and I wonder if I need to shorten my bolts so it holds down snug.
Great video👍🏻 Question. I have a 2004 Yamaha yz125 I was told the are a few different size of pistons those bikes take how do you tell which one your bike takes? This would make a great video by the way..
Originally its stamped on the cylinder. A B C or D. If that is worn off you have to measure but the reality is that the difference in size is almost negligible. I almost always use a B piston.
@@highlandcycles thanks for the response. I measured the cylinder last night and mine is a 53.4 mm which is an A so that what I just ordered right before I read this. But I will keep it in mind the next time redo the top end
@@highlandcycles I'm aware of both and have both and have rebuilt both numerous times. I just know that the Banshee basically proves that power valves aren't that necessary for a powerful 2 stroke engine. Although, on the other hand, a 250cc 2 stroke dirtbike has way more hp than the 350 Banshee... So nvm..🤣
@@geopioneergsxr5357 I wasn’t meaning to be a jerk. Some people just don’t know what a power valve does. It definitely doesn’t make more power. Just a broader power band so they are easier to ride.
Diggin that “2~Strokes Matter” sweatshirt!
Yeah. teespring.com/stores/highland-cycles-merch-3
Awesome video!!!
Thanks man
AvE is the man!
Totally
XR in the background. I'd recognize that heat shield anywhere 😁
Heck yeah
Dammn i like ur videos it helps me alot cause i have a yz144 2 stroke that i need to fully rebuild
Right on
Are the power valves the same on the 125/144?
What type of liquid do you use in your ultra sonic cleaner?
Fabuloso in water
What’s your opinion on maxima 927? I’ve been running it In my bikes and skis. Don’t seem to see much build up. And I know castor protects very well
I’ve never used it but I know it’s good.
@@highlandcycles I’ve heard it can cause build up. I would think as long as the jetting is good it should be fine?
@@benselby6171 I agree
i have a yz 144 and need a head gasket do you know where i can find one ? or if the oem one will fit?
I would try Athena
What size flex hone do you use for your cylinders?
I honestly don’t know the size off the top of my head. I have a big selection and I just grab the one I need.
@@highlandcycles I just looked at that video about the top end rebuild it’s on the two stroke for some reason I thought it was on a 250 four stroke . I think I’m going to go with the 3 1/4 inch for my 78 mm piston.
Do the bolts at 8:24 hold down the round part on powervalve tightly? Mine have a bit of play and I wonder if I need to shorten my bolts so it holds down snug.
It should be snug
@@highlandcycles thanks brotha it didn't seem right that it had a .5mm gap. I think I'll shave the bolts down a bit for a tight fit.
Still wondering how to rebuild the xr 100
Me too. Actually, I found a part we need. Little gasket so no biggie but have to order it
Great video👍🏻
Question. I have a 2004 Yamaha yz125 I was told the are a few different size of pistons those bikes take how do you tell which one your bike takes? This would make a great video by the way..
Originally its stamped on the cylinder. A B C or D. If that is worn off you have to measure but the reality is that the difference in size is almost negligible. I almost always use a B piston.
@@highlandcycles thanks for the response. I measured the cylinder last night and mine is a 53.4 mm which is an A so that what I just ordered right before I read this. But I will keep it in mind the next time redo the top end
Any way I can text you I’m doing a 144 on my 2003 yz 125 I need pointers on what to do and what to get
You can email to morgan@highland-cycles.com
What year is this bike
2002
The banshee does just fine without power valves..
It’s a twin and not built for what a dirt bike does
@@highlandcycles I'm aware of both and have both and have rebuilt both numerous times. I just know that the Banshee basically proves that power valves aren't that necessary for a powerful 2 stroke engine. Although, on the other hand, a 250cc 2 stroke dirtbike has way more hp than the 350 Banshee... So nvm..🤣
@@geopioneergsxr5357 I wasn’t meaning to be a jerk. Some people just don’t know what a power valve does. It definitely doesn’t make more power. Just a broader power band so they are easier to ride.
For a 05 yz125 with a 144 kit. Where can I get a new actuator shaft seal ????
Should be on the Yamaha parts fiche
@@highlandcycles is it the same for the Athena 144 cylinder?
@@highlandcycles thanks for the response by the way
@@DirtbikeDad I’m pretty sure it is
@@highlandcycles thanks. Leak a lil oil from that area so I’m guessing that’s where !
Call me crazy but when mash the like button it's supposed to light up, I hope that the tech overlords aren't trying to steal your thumbs up count..
I’m sure it is working.
And thanks man