I got a email from W400 user in Singapore

[kawashima]

Today I got a email from W400 user(not BCF) in Singapore.
In summary, he said he want to buy W650 engine from japan and attach it to his W400. He says W650 isn't sold there.
I thought 1hour and responded,
1. Buying new engine is impossible(cause maker don't stock it like parts)
2. It's hard to find used engine cheaply.
3. Used W650 is not so cheap also here.
4. I don't think there is any shop which remove engine/carb/exhaust etc from W650, pack them and export from Japan to Singapore.
5. W400 is designed as 400cc many other different points like gear ratio/suspension length/jets...
6. Total cost can be huge enough to buy a brandnew big bike
7. W400 resale value will severely down.
In summary, I don't suggest it. I responded.

I still wonder if I was correct. What is you thoughts?
Jap fellows in anonym board weren't helpful as usual.

[mr.z]

[sickpup]

Probably the easiest thing to do assuming they use the same engine would be to get a set of 650 pistons and have the cylinder bored out or re-linered to take them. Basically do a big bore.

They wouldn't get much if anymore top end power but they would get a huge bottom and mid range.

[kawashima]

Thank you for your replys. I've got response that he would rethink.
I'm relieved to hear that.

Buying bikes in Singapore seems to be very expensive.
He says he paid JPY1060,000 for his W400

[lilredmachine]

So the block is actually different? are you sure it's not like a 383 chevy motor with a 350 block and a 400 crankshaft?
____________________
Bikes: too many, too much for one man to maintain anyway.

[kawashima]