How to remove flywheel - 1990 350 F2 2UA

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MK
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Re: How to remove flywheel - 1990 350 F2 2UA

#31 Post by MK » Thu Jan 18, 2018 3:46 pm

No.
Usually the outer right bearing, then the outer left.
Or it is obvious like a torn rod or a blue and sloppy big end bearing.
Bye
Martin

kjellz
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Re: How to remove flywheel - 1990 350 F2 2UA

#32 Post by kjellz » Thu Jan 18, 2018 5:50 pm

And the centre webs, are they splined where they are pressed together? Never seen any pics of these parts..
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RD350 YPVS 1990
F2 converted to N2 Red/white 1986 - Figaroli pipes

MK
Posts: 813
Joined: Sat Nov 26, 2005 11:44 am
Location: Wolfenbüttel, Germany
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Re: How to remove flywheel - 1990 350 F2 2UA

#33 Post by MK » Thu Jan 18, 2018 6:02 pm

Oh c'mon ... are you really that lazy?
Google rd350 crank web and you get stuff like this:
https://yambits.co.uk/rd350-ypvs-crank- ... pqck2nop12" onclick="window.open(this.href);return false;

The center section is difficult to press as it's not keyed or splined but the 180 deg offset will be crucial for later trueing.
Bye
Martin

hondaror
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Re: How to remove flywheel - 1990 350 F2 2UA

#34 Post by hondaror » Thu Jan 18, 2018 7:42 pm

I'm doing my motorcycle mechanics school currently.
Regarding your flywheel...use contact cleaner or brakekleen on the tapers, internal and external, and then mount them up clean. Do not touch the clean surfaces, as the oils in your hand will cause problems.
For your cases, a leak down is required and afterwards a vacuum test at 6" of mercury for 6 minutes will tell you if your main seals are toasted.
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

kjellz
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Re: How to remove flywheel - 1990 350 F2 2UA

#35 Post by kjellz » Wed Jun 19, 2019 4:57 am

This season I started by removing my flywheel for a stator inspection (after a rewind last year). I used an electric wrench to shock the puller bolt and it popped loose instantly. It does however seem to take some considerable force to loosen these even at ideal conditions. Note, I did not apply anything to the conical surfaces when installing last time.
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RD350 YPVS 1990
F2 converted to N2 Red/white 1986 - Figaroli pipes

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mixalive
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Re: How to remove flywheel - 1990 350 F2 2UA

#36 Post by mixalive » Fri Sep 20, 2019 11:36 am

I had issues pulling mine off as well. My Chinese puller pulled the threads the first time. On the second try after grinding down the puller threads, I applied heat to the flywheel while the puller was at full tension and rapped it on the flywheel a couple of times with a rubber mallet and it popped off. It did mushroom the end of the crank slightly.
RZ350 with FZ600 swingarm, FZR600 wheels, front end and FZR400 bodywork.

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