PDA

View Full Version : '84 200x rebuild questions


rsheehan79
05-21-2023, 07:14 PM
To start with, where do these o-rings go? There were 2 of them and I apparently missed them on disassembly. They were stuck to the inside of one of the case halves but that was after boxing up a bunch of parts to wash in the big tank at work. https://uploads.tapatalk-cdn.com/20230521/cc4a3bcf7be80f3386c303116f332d07.jpghttps://uploads.tapatalk-cdn.com/20230521/5dbf2eca87b5807d408f6f642c0aeb23.jpg

Sent from my SM-S908U using Tapatalk
shortline10
05-21-2023, 08:20 PM
There are only 3 o-rings that size that I can recall , 2 are under the pressed in valve guides and the other one goes between the cylinder and cylinder head on the oil galley stud .
Part number 3

https://www.partzilla.com/catalog/honda/atv/1984/atc200x-a/cylinder
rsheehan79
05-21-2023, 08:27 PM
There are only 3 o-rings that size that I can recall , 2 are under the pressed in valve guides and the other one goes between the cylinder and cylinder head on the oil galley stud .
Part number 3

https://www.partzilla.com/catalog/honda/atv/1984/atc200x-a/cylinderYeah I saw that when I looked at the parts fiche. You know what I think happened? Someone put two under the head. They stuck to the head when I took it apart and fell off into the case when I boxed them.
Ok... what is the oil galley stud and does the o ring go under or on top of the head gasket?

Sent from my SM-S908U using Tapatalk
shortline10
05-22-2023, 07:27 AM
The bottom right cylinder stud feeds oil to the top of the head . Place an alignment dowel and one o-ring there .
The original head gaskets are made a little larger to accept that o-ring . Now if you’re using an OEM newer style metal head gasket I believe it doesn’t use that o-ring anymore .
rsheehan79
05-22-2023, 07:35 AM
The bottom right cylinder stud feeds oil to the top of the head . Place an alignment dowel and one o-ring there .
The original head gaskets are made a little larger to accept that o-ring . Now if you’re using an OEM newer style metal head gasket I believe it doesn’t use that o-ring anymore .Awesome. Thanks for the info!

Sent from my SM-S908U using Tapatalk
bt200X
05-22-2023, 10:10 PM
That Oring might be from timing chain tensioner adjuster, or the plugs to check timing on Mag cover maybe. there are also 2 behind oil pump.
shortline10
05-23-2023, 12:36 PM
Good call on the two behind the oil pump , I believe those two are much smaller than the one in his picture though .




That Oring might be from timing chain tensioner adjuster, or the plugs to check timing on Mag cover maybe. there are also 2 behind oil pump.