neodymium
Active Member
If you can share your experiences that would be extremely helpful since I may grab one of those in the near future. Anything known issues as well as what you personally experienced is be grateful
P85 cylinder plating issues
- Thread starter neodymium
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GW's Motorized
Well-Known Member
I can dig up.some posts and get you some links.
neodymium
Active Member
I was working under the assumption that they are assembling these engines the same as the other engines they market for these bikes. Most of those as far as I know have a thin layer or nickel or nikisil on the barrels of the heads since that's how they've always been made as far as I know. I highly doubt they just take a aluminum cylinder and hone it with the way these look they have to be using some sort of coating to create a sleeve on the cylinder walls. Aluminum or nickle or whatever they're using. But it's definitely a different alloy and color/composition than the rest of the jug/head
I just took the best pics I could take of that cylinder just now and it sure looks like its been machine honed to me, but again, I could be wrong...lol...won't be the first time either in my life...lol.
GW's Motorized
Well-Known Member
Looks like there is cross hatching there to me.
neodymium
Active Member
I didn't say it wasn't honed. I was saying that the cylinder walls don't look like they honed the aluminum head. It was nickle plated and THEN honed. Honing is just polishing
neodymium
Active Member
You said that the cylinder is ceramic plated. It is a ceramic COATING. Coatings do not chip in the way my engine jug is. I will edit that post to reflect what I mean to say which is that it doesn't look like honed aluminum but rather nickle plated aluminum like most cylinders
Im just thinking that the cast aluminum is a defective casting of a too soft aluminum alloy that they then applied the ceramic coating on haphazardly...Just submit the pics to them when you talk to them showing the flaking and peeling, they will replace it for you.
neodymium
Active Member
Me head doesn't actually look cross hatched. It's more just circled
GW's Motorized
Well-Known Member
So here are my suggestions on the bt80 in no particular order.
Upgrade all of the electrical connections because they will rattle loose and cause a huge headache.
The clutch is a wet centrifugal clutch. There is lots of confusion information, it took me a while but I found out it is in fact wet.
40 chain is almost too wide for the engine side.
Most performance parts won't bolt on.
You can't use any aftermarket mounts for this engine.
Replacing the stock air filter gives a massive boost in power.
The pull starter brakes easily.
Lights are awesome.
If you idle too long the fuel in the float bowl will start to boil and the engine will die.
There is probably more I'm forgetting, pm me if you have any specific questions
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