Need model # for Yamaha trike

[lonehunter]

Hey everyone, I have a 85 Yamaha trike with a vin # JY321VOO4fO164140
Pull start, no battery, chain drive.

I need to find out what model I have?
And what engine?

By searching I have found the 10th letter is the year which would make it a 85. The 21V means chain drive.

Where on the engine would I find the engine code?

I have tried looking up the vin using the VIN and serial # decoding tool but it says it is not available.

I would be grateful if someone could point me in the correct direction.

Thanks,
Jeff

[czac]

This is from the Manual for my YTM 225 DXN... looks like you may have the YTM 200N not sure of the year though.

MODEL ENGINE NUMBERS
YTM200K 21V-000101-100100
YTM200L 21V-100101-160100
YTM200N 21V-160101-on
YTM200EK 24W-000101-100100
YTM200EL 24W-100101-on

on my 225 DXN the engine code is on a flat part on the engine block just about under the carb. its stamped into the block.
if yours is anything like mine, the last 6 digits should match the last 6 digits of your Serial number, for example it should look like: 21v-164140 Hope this helps