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Author Topic: Hankering for a 900 Project  (Read 13716 times)
koko64
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« on: May 24, 2016, 02:41:33 PM »

Edit. This will likely be an M400 with a 900 motor transplant.
1. M900 preferably 90's model keeping the stock look
>Hi comps (JE) and engine studs to suit
>Worked oem carbs and manifolds
>Light flywheel
>Light clutch
>Ported heads
>Modified airbox
> Slip on exhausts.
>Possible 900ie cams or 900ie motor
> Possible 44mm inlet valves with porting to suit.

Of course with a 900 model wheel and swingarm.
« Last Edit: June 12, 2016, 01:21:48 AM by koko64 » Logged

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« Reply #1 on: May 24, 2016, 03:22:06 PM »

Some explanation. I really love the character of the older motors, maybe it's because I'm getting older too.

The Monster would be an exercise in polishing what is basically stock and the SS would be an exercise in exploring a variation in that engine character that moves the torque further up the rev range. Always wanted to try a short manifold 900. Mikuni TM38 flatslides are a non pumper carb costing about $500 AUD for the pair with 2 into 1 throttle to suit. I have barrel filters to suit.



The motors are still both old style heavy crank carburettored motors that give a substantial feel that is satisfying on the road.

Goal for M900 is 80-85hp grunt motor for cruising and 85-90hp sport motor for the Supersport. The Supersport/Superlights will become classics as they dont make them anymore. Superlights are being advertjsed here for 10-15 k.  I would love to have both and if they are on classic registration much easier to justify. Yeah, like that's gonna happen!

Just some self indulgent musing.
« Last Edit: May 24, 2016, 03:51:30 PM by koko64 » Logged

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« Reply #2 on: May 24, 2016, 03:53:17 PM »

SS
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« Reply #3 on: May 24, 2016, 04:02:52 PM »

Will those TM's tolerate the OEM semi-downdraft position?

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« Reply #4 on: May 24, 2016, 04:14:03 PM »

A Monster is almost too close to my Hyper in some ways. I feel that the old Hyper captures the spirit of the Monster better than the current Monsters and old Monsters being so close in function to my HM, but a Supersport/Superlight is just so special imo. I love the fairing shape and even love the rectangular head light!
Still, it would be better to have both!

Will those TM's tolerate the OEM semi-downdraft position?



I would run the vert cylinder on a short straight manifold and Mikuni sell 45-90 degree manifolds ala Malossi for the hor cylinder. So One carb dead horizontal and one nearly horizontal. I think talking to yourself awhile back and that friendly bloke at Powerbarn it seems you wouldn't tip them more than 20 odd deg. With the slight backward tilt of the hor cyclinder you might get away with a 45 degree manifold. As long as the TMs don't jam open! laughingdp
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« Reply #5 on: May 24, 2016, 04:16:03 PM »

SS . . . just love thase bikes
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Carlos
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« Reply #6 on: May 24, 2016, 04:20:02 PM »

Thanks you blokes for coming on board with this hopeless dream. Every time I look at my mate's Superlight I realise I need one.
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« Reply #7 on: May 24, 2016, 04:23:34 PM »

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koko64
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« Reply #8 on: May 24, 2016, 04:27:00 PM »

Will those TM's tolerate the OEM semi-downdraft position?



I'm pretty sure it was you that told me that running the TM's past 15-20 deg angle would be tuning wise entering,  "a world of pain" Grin.


That splits the difference! I would definitely keep the SS as a fully faired bike.
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« Reply #9 on: May 24, 2016, 04:34:34 PM »

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« Reply #10 on: May 24, 2016, 04:40:42 PM »

Stop it you. laughingdp
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« Reply #11 on: May 24, 2016, 04:42:30 PM »

Just ideas . . .
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Carlos
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« Reply #12 on: May 24, 2016, 04:44:57 PM »

Stop it you. laughingdp

I can do this all night long.  Cheesy

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koko64
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« Reply #13 on: May 24, 2016, 04:45:51 PM »

It's torture. Grin

Nice one. waytogo
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« Reply #14 on: May 24, 2016, 04:47:45 PM »

I can do this all night long.  Cheesy



l note the split FCRs on short manifolds into MBP heads. You're a harsh man. Cheesy
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