85 250R left case replacement

[Anton]

Hello,
I'm preparing to replace the left side case on my 250R. I'm just wondering how difficult of a job it is, and anything i should watch out for or be careful of?

I have ordered a full gasket kit, and have a new case.
Does anyone have an exploded view of the engine, or maybe scanned a few pages form a factory manual focusing on dissasembling this part of the engine?

Figuring out how to take it apart isn't a big deal, but I just want a diagram incase, or if there's anything i should or shouldn't do, it would be nice to know.

So my plan is to take the engine out and start tearing it down till the case can come off. I understand the cylinder jug needs to come off, what is involved in doing this?

thanks

[Black Sheep]

i've said it before and i'll say it again (with no disrespect intended) if you have to ask you probably should not atempt it.

looking at pictures is only a guideline. there is more to it. to replace a case half the entire engine, clutch and tranny need to be disasembled. you'll need special tools to do it right and prevent damage. such as a flywheel puller, tourque wrench, and case splitter. a basic understanding of how the entire motor works is also required. not just understandind the basic compression aspect but how every thing works as one. how the motor works with the clutch and how the clutch works with the tranny. you also will need proper tourque specs. you also need to measure parts for service limits and a caliper would be benefical here.

if you still feel like attempting this project i would highly recomen two books.

1. a Honda service manual for your trike.

2. a Honda common service manual.

the service manual will give you step by step instructions on your trike including specs.

the common service manual will explai all the aspects and theroies in functions of all parts.

together both manuals will only cost around $80.00-$90.00
well woth it considering the money saved.

if and when you get them i sigest reading them twice before you start working to familurize your self with everything.

[azhondagrl]

I just have a quick question, and this is not meant to be rude or to start any kind of argument...

but are you saying that if he has a question about how hard of a task this is he shouldn't be trying it? because i wouldn't be able to try anything on my bike then since i ask a bunch of questions....just curious:)

[Black Sheep]

yes and no, i don't think its wrong to ask the question that is how we all learn. myself included. but, with tearing a engine down to complete disassembly it is my profesional opinion that if you have to ask it should not be attempted. when getting this involved in a motor you should have full confidence as to your abilities. i say this because what if he ran into something that could go wrong. without experiance things can be ruined. i had to learn myself and i drove other mechanics nuts asking every question i could think of but, and this is a big but, i never tried to do anything for the first time without having a more experianced mechanic at my disposal. i have seen guys with no experiance just beat things with hammers trying to get something apart and they did. by looking at it it looked ok but after reassembly the thing exploded because the hammering caused unseen damage. just like case bearings. they need to be driven in with a bearing driver that distributes the force to the whole bearing and not just the inner or outer race. if not premature bearing failure can be the result. also if you don't have the basic knowlege chances are high you don't have the proper tools.

[azhondagrl]

well said. thank you for the clarification. :p

[Stan MaN]

I'm with you guy's, do the research before you get your hands dirty