1984 Trailfire cylinders

[hounds84lhs]

Hi, I am in the process of going through my 84 engine and it looks like on of the cylinders is bad. i have a 1980 440 parts motor but noticed the cylinders are slightly different? After some research I see there are different part numbers for the later years TF cylinders. Would/can I use one from each engine? Thanks in advance for any help.

[smitfire]

No, stick with the later ones. They are an update with the ignition

[guitardude081]

I would personally send them out to Millenium or US Chrome and have them replated with nicasil. Wiseco will sell your pistons with nicasil rings. I think all said and done, I’m into my ‘83 motor $700 with gaskets. I haven’t fired it yet but I’m pretty excited to start showing it again this summer and riding next winter. It will be much more durable than the original chrome lined motor.

~Jack

[hounds84lhs]

Thanks for the info.

I was going thru my parts engines and found something interesting. These are all off of TA440 motors. One has TA440A-D202 and the other has TA440A-C202? Is there any difference?

[hounds84lhs]

Sorry I did not add the last part of my question. The 84 engine is marked TA440-F202. Does the C, D and F mark the year manufactured or?

[guitardude081]

The F202 uses copper rings instead of paper/steel gaskets. The F202 also has a little extra go fast.

~Jack