Some questions about a basket case rebel 250 going back together - Honda Rebel Forum
 
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post #1 of 10 Old 09-08-2015, 09:59 PM Thread Starter
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Some questions about a basket case rebel 250 going back together

Hey all, new guy here. Have done some searching of the archives and have not found what I need. I am putting a disassembled 2003 rebel 250 back together for my girlfriend. Right now I am preparing to put the cylinder head back on. I do not know which way the headgasket faces up? as far as I have seen it is not marked and since I did not take it apart I do not know which way is up or down. I have my hunches, but would like to confirm it before I go any further.

any help?

thanks Matt
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post #2 of 10 Old 09-08-2015, 11:19 PM
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Does this help? 2003 Honda CMX250C A CYLINDER HEAD | Cheap Cycle Parts

Keepin' all the left over parts. Gonna use 'em to build another bike!

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post #3 of 10 Old 09-08-2015, 11:37 PM Thread Starter
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Originally Posted by flitecontrol View Post
Unfortunately no. the gasket has raised ridges around the cylinders and I need to know if they go towards the jug or the cylinder head? thanks though!
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post #4 of 10 Old 09-09-2015, 12:11 AM
 
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If there is a wider side to the fire ring (the metal rings around the bores) that side faces the head and the thinner side faces the jugs.
The head is all aluminum and the jugs have a steel insert for the cylinder bores, so the wider side of the fire ring facing the head spreads the crush better without marking the soft aluminum. The thin side of the fire ring is against the steel of the cylinder liner so no issue with marking the steel.
If the fire ring is the same width both sides of the head gasket then take your pick. Usually a Honda OEM gasket has a definate wider and thinner side to the fire rings.

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post #5 of 10 Old 09-21-2015, 07:36 PM Thread Starter
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Ok, I figured out how the gasket faces. Now I am trying to get the cam back in. I have one of the aftermarket manuals. It is not very clear about the procedure to reinstall the cam/sprocket/chain back together.

Does anyone have a good rundown? is there a better manual?
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post #6 of 10 Old 09-22-2015, 12:56 AM
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Honda's service manual is best, followed by Haynes. Clymer is a distant third, unless there are other manuals I don't know of, in which case I would recommend them sight unseen before Clymer. Clymer did not update their manual very well, if at all, for the second generation Rebels.

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post #7 of 10 Old 09-23-2015, 08:54 PM
 
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I agree,Clymer MANUALS are not for 2nd generation Rebels,I have one and for my 96 it's worthless.
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post #8 of 10 Old 02-02-2020, 01:26 AM
 
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Quote:
Originally Posted by flyin900 View Post
If there is a wider side to the fire ring (the metal rings around the bores) that side faces the head and the thinner side faces the jugs.
The head is all aluminum and the jugs have a steel insert for the cylinder bores, so the wider side of the fire ring facing the head spreads the crush better without marking the soft aluminum. The thin side of the fire ring is against the steel of the cylinder liner so no issue with marking the steel.
If the fire ring is the same width both sides of the head gasket then take your pick. Usually a Honda OEM gasket has a definate wider and thinner side to the fire rings.

I am having this same issue not sure which side to put up or down on my oem case the cylinder gasket? What the hell is a fire ring?
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post #9 of 10 Old 02-02-2020, 02:59 PM
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I think he's referring to the top ring, which is closest to the "fire" when ignition occurs.

Keepin' all the left over parts. Gonna use 'em to build another bike!

'01 & '09 Rebel 250, '06 Ninja 250, '89 VN 750
Putting your bike year and model in your signature helps others help you!
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post #10 of 10 Old 02-02-2020, 04:43 PM
 
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Online factory repair manual can be found at Archive.org
The manual is for 2nd generation, But wiring diagram shown at end is for 1st gen 85-87 so don't use that one..

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