TZR350

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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

TZR350

Post by dberry »

TZR350 is now done.
TZR250 2XT chassis with RZ350 engine and electrics.
More pics and details to follow.
Attachments
TZR350 2016  2.jpg
TZR350 2016 2.jpg (194.37 KiB) Viewed 10077 times
TZR350 2016  1.jpg
TZR350 2016 1.jpg (192.45 KiB) Viewed 10077 times
dinamos
Posts: 106
Joined: Fri May 20, 2005 12:52 am
Location: Burlington, ON, CA

Re: TZR350

Post by dinamos »

Nice. Details please.

Curb weight?

Engine mods?

Conversion problems/work arounds?

roger
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

A stock TZR250 1KT, 2MA or 2XT weighs around 280lbs dry and 330ish wet
so with the 350 engine swap it might weigh a few pounds more.
Then again the custom Slinger pipes weight much less than stock ones
and I removed the passenger pegs, mounts and a few other bits.
The engine cradle also made by Slinger is aluminum compared to the
stock steel cradle so I bet it comes in under 280lbs.

The engine and electrics are 1987 RZ350 with 1UA ported cylinders, shaved head,
30mm Mikuni round slide carbs with 260 mains and 40 pilots.
TDR reeds and foam pod air filters.
2XT wheels that are wider than stock so rides like its on rails.

Very few mods other than relocating the shifter, rad and electrics.

No issues so far with 1000km on the bike, goes like snot !
I think a stock TZR250 has 50ish hp, the 87 RZ has 62.
The 350 RZ engine in this TZR should have around 70-75 hp,
weighs about 45lbs less than a stock RZ and I think handles better.

I will post more pics and info. in a few days.
Not very good at this computer thing, old school boy, lol.
Last edited by dberry on Fri Jul 08, 2016 6:57 pm, edited 1 time in total.
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

Back in 2009 I shipped the TZR250 roller to Slinger in Nova Scotia so he could
build me a custom cradle and set of pipes.
Attachments
TZR350 engine mount III.jpg
TZR350 engine mount III.jpg (10.33 KiB) Viewed 10041 times
TZR350 engine mount II.jpg
TZR350 engine mount II.jpg (10.05 KiB) Viewed 10041 times
TZR350 engine mount.jpg
TZR350 engine mount.jpg (8.01 KiB) Viewed 10041 times
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

Here is a pic of the pipes.
The end cans are Toomey`s
Attachments
TZR 350 custom exhaust.jpg
TZR 350 custom exhaust.jpg (91.44 KiB) Viewed 10041 times
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dberry
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Location: Ontario, Canada

Re: TZR350

Post by dberry »

Roller with RZ engine mock up.
Attachments
TZR 350 mock up, roller with engine mounted, right.jpg
TZR 350 mock up, roller with engine mounted, right.jpg (242.63 KiB) Viewed 10033 times
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

RZ engine mock up in TZR frame, right
Attachments
TZR 350 mock up, roller with engine mounted, engine, right.jpg
TZR 350 mock up, roller with engine mounted, engine, right.jpg (173.75 KiB) Viewed 10033 times
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

RZ engine mock up in TZR frame, left
Attachments
TZR 350 mock up, roller with engine mounted, engine, left.jpg
TZR 350 mock up, roller with engine mounted, engine, left.jpg (151.78 KiB) Viewed 10033 times
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dberry
Posts: 34
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Location: Ontario, Canada

Re: TZR350

Post by dberry »

I used the stock TZR250 cover with stock RZ350 "guts".
Just had to cut out a bit of the back cover to fit the RZ wiring.
Attachments
TZR350 gauges, covers off.jpg
TZR350 gauges, covers off.jpg (214.91 KiB) Viewed 10032 times
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

In order to use the stock TZR250 shifter I had to put a small
dent in the pipes for clearance but once it was hooked up there was too much play, Doh !
Decided to drill a hole in the peg bracket and go with a stock RZ shifter.
Shifts smooth and lines up fine.
May go with rear sets if my old knees can take it.
Attachments
TZR350 naked shifetr and side stand.jpg
TZR350 naked shifetr and side stand.jpg (179.82 KiB) Viewed 10007 times
TZR350 naked shifter.jpg
TZR350 naked shifter.jpg (210.12 KiB) Viewed 10007 times
Last edited by dberry on Sat Jul 09, 2016 12:33 am, edited 1 time in total.
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

Not sure if this steering damper is needed but it does keep
the bike stable when going over rough spots and pot holes.
Attachments
TZR350 steering damper.jpg
TZR350 steering damper.jpg (182.23 KiB) Viewed 10006 times
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dberry
Posts: 34
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Location: Ontario, Canada

Re: TZR350

Post by dberry »

A better view of the cradle and exhaust.
Slinger does amazing work, thanks again Glyn.
Attachments
TZR350 naked left.jpg
TZR350 naked left.jpg (193.59 KiB) Viewed 10005 times
TZR350 naked right.jpg
TZR350 naked right.jpg (206.84 KiB) Viewed 10005 times
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

Aluminum custom cradle fits well.
It has no mounts for stabilizer bars
but the stock TZR250 only has one tiny bar
and I have not had any issues when I ride hard.

Runs nice and cool with the stock RZ rad.
Also used a stock RZ rad on my YamaGamma
and it ran cool as well.
Attachments
TZR350 naked right engine.jpg
TZR350 naked right engine.jpg (189.05 KiB) Viewed 10005 times
TZR350 naked left engine.jpg
TZR350 naked left engine.jpg (205.1 KiB) Viewed 10005 times
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dberry
Posts: 34
Joined: Wed Nov 11, 2009 6:19 pm
Location: Ontario, Canada

Re: TZR350

Post by dberry »

2XT wheels are wider than stock TZR yet look identical.
Allows for a better selection of 17 inch tires and performs
much better than a stock TZR, really hugs the corners.

The 2XT was a limited edition TZR250 released in Japan in 1988.
I think the cylinders were different, so possibly faster and handled better.
My paint scheme is based on the white/blue 2XT
Attachments
TZR350 naked front wheel.jpg
TZR350 naked front wheel.jpg (203.3 KiB) Viewed 10003 times
TZR350 naked rear wheel.jpg
TZR350 naked rear wheel.jpg (202.97 KiB) Viewed 10003 times
Too Stroked
Posts: 24
Joined: Sun Aug 16, 2009 12:53 am
Location: Toronto Ontario Canada

Re: TZR350

Post by Too Stroked »

Hi, seen your bike at Shannonville opening round of VRRA, looked awesome! Sorry we didn't get a chance to chat as I wanted details....pretty well informed now, thanks for sharing.
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