250r/400ex hybrid...

[jcs003]

update: its been a while but she is coming together.

[jcs003]

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[jcs003]

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[jcs003]

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[jcs003]

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[jcs003]

almost full functional. waiting on lectron to send my carb. also, need to get a few odds and ends and will update pics.

[michaelopfer]

sweet, deffinatly post some action pics when you can, maby even a video...


[IMG][/IMG]

[jcs003]

i have been testing it out the last couple of days. it is a good runner and i like the handling better than my 250r. i think it has to do with having a 400ex before a 250r.

i upgraded to a lectron carb after loving it on my 86 250r. it seems to lag off idle, but i think that has to do with mid range XC port. possibly i have too rich of a metering rod. its a process.

try and get pics up soon.

[easyrider470]

so i noticed that the forward engine mounts apear to be the stock 400 ex mounts? Does the engine basicaly drop right in and line up??? Looks like the only real fab work is in the rear where the back part of the engine is mounted?
I also wanted to ask if there is a preference on the year 250R motor to get....i was told that 5 and 6 are the same, and in 87 they went to a longer rod.....i know several people that have the 7 rod in an 6 motor...i am duning this thing so I want to make it as powerful as possible with some good low end grunt.

[jcs003]

Originally posted by easyrider470
so i noticed that the forward engine mounts apear to be the stock 400 ex mounts? Does the engine basicaly drop right in and line up??? Looks like the only real fab work is in the rear where the back part of the engine is mounted?
I also wanted to ask if there is a preference on the year 250R motor to get....i was told that 5 and 6 are the same, and in 87 they went to a longer rod.....i know several people that have the 7 rod in an 6 motor...i am duning this thing so I want to make it as powerful as possible with some good low end grunt.

it does work out with the sprockets lining up. also, you have to use two right side front motor mounts(400ex). a section has to be removed from the mounts to clear the cases. also, the 86 style rear motor mount is needed.

the right side(sitting on the bike) the swingarm pivot bushing needs to be cut down to 1.800". at least in my case.

but of course, a picture is worth 1,000 words.

feel free to ask me anything about this build.