What has to be done to fit a 3LN motor into my FZR 250 to replace my worn 2KR.. or will it fit straight in <!-- s:sniper: --><img src="{SMILIES_PATH}/icon_snipersmilie.gif" alt=":sniper:" title="Sniper" /><!-- s:sniper: -->
Don't completely know.. But I think someone already asked this. The mount points should be the same (But I think you'll have a few unused slots on the motor - not a problem) The oil sensor might (MIGHT) get screwed up and you'll need a transistor switch for that. Depends on what 3LN motor you get. Also, you'll need the same model carbies. No doubt about that one. Thats all I can think of. Have fun with that. Advice: If the motor has no stamped engine number.. KEEP THE RECEIPT! Damn VicRoads...
I do think the 3LN-1 motor should fit into a 2KR frame... the 3LN-3 has a screw in oil filter which I think will be in the way of the frame... so perhaps the oil pan needs to be swaped... I have no idea as to the pickups for the ignition... Also the 2KR is wired up for an oil level sensor while the 3LN-3 engine has an oil Preasure sensor...
Will Let everyone Know in the next two weeks as I got the motor and am trying to find time to do it.. will keep you all posted...
ur not upgrading the bike infact ur downgrading the bike as 2kr motor has 3-5 more BHP than 3nl motor.
I'm let to believe that they are the same motor.. anything that makes the bike go would be an upgrade at this stage
Other way round my friend. The 3LN's increased weight gave the techies a reason to tweak the top end and air flow to increase the redline and up the power a few bhp.
but somebody told me 3nl has the edge just due to the exup valve!. anyway can we install exup on 2kr?
Some 2kr's have exup already (the later model 2kr's). As for this: <!-- l --><a class="postlink-local" href="http://www.fzr250.com/viewtopic.php?t=635">viewtopic.php?t=635</a><!-- l -->
yes mine was the tech 21 with exup.. half way there but have come accross the sprockets are different so you have to change the back sproket and chain
ok got it in but now its like i have no throttle.. where do i start looking the cables or the coil.. have tested the CDI and it ok