Great video, I have big doubts about skills of our local mechanics. Is there anyways to get ready to run top end? Do you recommend any companies whether stock or performance.
Unfortunately the market is filled with parts kits made of questionable quality and materials. I like some select aftermarket items but I pick the parts and brands according to the needs of the build. It’s the little things during assembly that tend to bite people.
cool vid. But a correction, those holes in the ring fitting aren't for cooling the rist pins. They are for spraying the rings with oil from the oil jet below. That's why its on the port sides that take the hardest loads.
I’ll have to go back and look at what I said. Sometimes I misspeak. But the rings scrape the oil and send it through the holes which are directed toward the pin area for lubrication, not cooling.
@@mechanicsantics3575 the oil is sprayed up on to the backside of the piston. Only way oil gets on to the top side is by those holes through the oil ring grooves. There is no reason for this design to be for lubricating the pins when the oil jets spray directly at that area.
@@mechanicsantics3575 on the down stroke oil pools under the piston head and smears outward towards the walls. Without the ring grooves, all that oil would smear on the bottom side of the rings and cause the top rings to quickly dry out and start to chaff the walls causing extreme friction (heat) and wear. The port holes allow the top rings to remain lubricated and reduce friction.
Don’t forget how much oil is coming out from the rod bearing. This is how the cylinder and piston is lubricated without the spray nozzle. The walls of the cylinder have oil and when you think about the volume of oil from the spray nozzle and rod big end there is plenty of lube to be removed by those rings. At the speed of these engines it means oil is directed toward the pin. Piston engineers know that they need all the help they can get. CP pistons have these holes fed direct to the pin bores which is a better design in my opinion.
My 07 yfz450 has a high compression piston and has lots of compression my starter is acting like it’s not strong enough to turn the motor over don’t know if the starter is going bad but if I buy stock starter will it turn the motor over with it being a high compression piston
This guys gettin why to crazy fuckin slap a piston in it an ride the s.o.b your still gunna have to take it apart and service it in the same amount hours no matter what you put in it fuk
![⭐️( ลอยกระทง 2024 ) Ver. แดนซ์ Remix BY [ ดีเจกิต รีมิกซ์ ]](http://i.ytimg.com/vi/rMWOLhgXUHc/mqdefault.jpg)
The wrist pin has a ceramic coating, helps prevent friction under immense heat
Awesome videos! I'm doing almost the same build but 07 this time. I'm interested in the carb setup! I'll be waiting for that video
I have more carb videos, piston/cylinder and head work stuff coming shortly.
Good video man pretty helpful
Wossner is very good to. I use sometimes.
Do the oil jet mod from a 09 YFZ, you won't have the no oil on the crake issue anymore.
CP-CARRILLO Project X Pro Pistons comes with DLC wrist pin for the YFZ450. I have a 13.5:1 std. bore, part # CPKX1026
Great video, you really know your stuff
Good explanation 👏 subed
Great video, I have big doubts about skills of our local mechanics. Is there anyways to get ready to run top end? Do you recommend any companies whether stock or performance.
Unfortunately the market is filled with parts kits made of questionable quality and materials. I like some select aftermarket items but I pick the parts and brands according to the needs of the build. It’s the little things during assembly that tend to bite people.
Good video, do you sell it?
cool vid. But a correction, those holes in the ring fitting aren't for cooling the rist pins. They are for spraying the rings with oil from the oil jet below. That's why its on the port sides that take the hardest loads.
I’ll have to go back and look at what I said. Sometimes I misspeak. But the rings scrape the oil and send it through the holes which are directed toward the pin area for lubrication, not cooling.
@@mechanicsantics3575 the oil is sprayed up on to the backside of the piston. Only way oil gets on to the top side is by those holes through the oil ring grooves. There is no reason for this design to be for lubricating the pins when the oil jets spray directly at that area.
@@mechanicsantics3575 on the down stroke oil pools under the piston head and smears outward towards the walls. Without the ring grooves, all that oil would smear on the bottom side of the rings and cause the top rings to quickly dry out and start to chaff the walls causing extreme friction (heat) and wear. The port holes allow the top rings to remain lubricated and reduce friction.
Don’t forget how much oil is coming out from the rod bearing. This is how the cylinder and piston is lubricated without the spray nozzle. The walls of the cylinder have oil and when you think about the volume of oil from the spray nozzle and rod big end there is plenty of lube to be removed by those rings. At the speed of these engines it means oil is directed toward the pin. Piston engineers know that they need all the help they can get. CP pistons have these holes fed direct to the pin bores which is a better design in my opinion.
My 07 yfz450 has a high compression piston and has lots of compression my starter is acting like it’s not strong enough to turn the motor over don’t know if the starter is going bad but if I buy stock starter will it turn the motor over with it being a high compression piston
Stock should still start as they use a compression release on the exhaust cam. Probably something else going on.
Do u take customer's send u carburetors for overhauling?
Yes I do this, but the condition of carbs I get has declined and many need expensive parts to really make them good again.
Grate info ,thnks
Are you able to use your stock carburetor with that kit ?
Yes, the stock carburetor is fine for this build level and parts.
whats the size of piston pin?
.787”
How many hours does piston last?
Hard to say, it depends on a lot of factors such as racing vs trail riding, maintenance etc.
This guys gettin why to crazy fuckin slap a piston in it an ride the s.o.b your still gunna have to take it apart and service it in the same amount hours no matter what you put in it fuk
Well, I guess we see things a little differently.
Legit showed nothing about rebuilding the top end
Big waist of time
Thanks