WICKED MOTORSPORTS BUDGET STOCK CYL +4mm 385CC RZ 73HP/41TQ

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wicked motorsports
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WICKED MOTORSPORTS BUDGET STOCK CYL +4mm 385CC RZ 73HP/41TQ

#1 Post by wicked motorsports » Thu Jun 17, 2010 3:37 am

hey Guy's after all the Crazy wasted time and frustration I wanted to come back on with a fresh start. I decided to Yank Old Yella from the Field of my dead bikes i need to fix lol.... So i said lets build a +4mm RZ on Stock Cylinders on the Poor mans budget! Well at least try lol... I might not be too cheap with my own stuff lol... I'm going to walk you guy's threw a 2 week build of a RZ350 Converted to a +4mm 385cc with Dyno charts!

So here where the Build Started Sunday night Frustrated at home so i decided to Pull Old Yellow out and get Busy! Now i might Convince some of you to build such motor nor i might not. Either way i wanted to shed some light in building one and i hope this turns out fun for you guy's as well

So let me introduce you to Old Yella. As you can see the RED ATF Fluid Being drain after the attempt of fixing and cleaning a blown up clutch. I had to scratch my head wondering why it was red at 1st I forgot why i had done that but then it came to me. Sense i park the bike over a Year ago.Image

Question?? Any one know where this tank is from? I bought this Bike from a guy in Colorado several years ago. lol... You can see the Film of Dust.

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15 Minutes later....
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45Minutes later lol....
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Here we go! the Fun Begins!
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Busted out my CSI Skills and found out why it quit running. Something as easy 1,2,3 Bore pistons and done lol.... thou i didn't want stock lol.... It had cast piston that gave up on the left sitting on the bike. looks like maybe running it a tad too hard in the over revs trying to get them 4-strokes and keep up with my Buddies RZ500 lol... Oopps Image

Bores still look Cherry 64.75mm Look at the Hone marks on the Exhaust side. Come to Find out I had a SPecII Port Job as well... But the Left cylinder took a little scar up and down so going to take it the next size 65mm.

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Crank still looking like a top! I should of just bored it lol.... O well.....Image

Here's the Clutch side. Looks like my up grade and ATF worked out. I remember how Disgusting it looked when it blew up. I also up graded the clutch with one of ours. 3 Medium Springs and 3 Heavy Springs.Image

HA HA...!! I already had installed the Clutch Pusher as well!! Thank god i did! Look at the indention it already has. Been tearing up this motor hard! and Feather the crap out of the clutch lol... Wheelie King Bike! Ok Ok Ok.... the truth is I really wanted to blow it up HAHAAHAH We all say I'm waiting till it blows so i can build it lol.....

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Basket and Inner Hub look just fine for as many miles it has. Little wear but does not look like a shark took a bite out of it and grooved it where the plates would stick. Maybe I'll throw a sand roll at it.

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Well hello clutch we meet again......... :smt011
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So not too bad for 9968 Miles Thou i seen signs of it been open before crank is already trued and welded. Going to guess SPecII did it before?
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Wow maybe that's why it was such a turd shifting lol..... ATF was flushing out all the crap from the clutch lol...Image

What a Mess.......
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So blam!!! a solvent tank can handle a big mess.
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I leave you with this for now till I get another chance to slam the hammers at the Wicked 385 RZ Build. Reminds me why i love My two Strokes so... Much! :smt007Image

Can't wait to ride the Orange 750H2 next week the Frame is A H1 500 I hope to have it running for some test and tune next week and see what we can do It'll be music to my ears when it fires off!:smt020
I had to blur the RD400R1 Hybird It's a Build for a magazine I'd get busted if I posted it lol...Image
Last edited by wicked motorsports on Sat Jul 02, 2011 11:01 pm, edited 3 times in total.
Wicked Motorsports Inc.
10552 Stanford Ave.
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E-mail: roger@wickedatv.com
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Stroker
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#2 Post by Stroker » Thu Jun 17, 2010 3:46 am

Gee this is going to be a cool build i cant wait for the next update :smt020 :smt020
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aaronmvrider
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#3 Post by aaronmvrider » Thu Jun 17, 2010 4:03 am

positively excellent thread for us newbies at this building stuff !!!
1 x 4mm stroker rz 375cc 1983
1 x 7mm stroker rz 443cc 1984 (under construction)
1 x rz 500
1 x mv agusta 1000
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JonW
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#4 Post by JonW » Thu Jun 17, 2010 4:35 am

Really enjoyable seeing it all come apart, will be even better to see it come back together. :)

Can i ask a couple of questions...

1, you say that the crank is already trued and welded, can you point out that in the pics? I ask as Id love to know how to tell that has been done.

2, you used a solvent bath... did you leave the shifter parts in the case when you did that and if so, why not rip em out and redo them if youre down this far? not being funny, just interested for when I do my engines. :)
80 XT500 Supermoto!
81 RD350LC Resto
82 RD421LC Hybrid
82 RD350LC decapitation project
82 RD250LC JDM '251LC' YPVS
83 RZ350 Resto
84 RZ500 Resto
85 RZ350 F1 Resto
86 RZ350 F2 Resto
86 RZ350 F2 Hybrid

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Headcoats
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#5 Post by Headcoats » Thu Jun 17, 2010 5:21 am

Looking forward to this :smt004

We like lots of pics :smt002
Cryin' In The Beer Of A Drunk Man
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pez
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#6 Post by pez » Thu Jun 17, 2010 5:38 am

This is a great thread, and a really positive way to move forward. Great photos. You've got my attention..
'86 RZ250R w/350 Barrels - daily
'76 RD400C - running restoration
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Richie Rich
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#7 Post by Richie Rich » Thu Jun 17, 2010 8:41 am

pez wrote:This is a great thread, and a really positive way to move forward. Great photos. You've got my attention..
Me too! Bring it on!
1983 RZ350K
1984 KR250A (Tandem Twin)
1985 GSX-R750F
1989 TZR250 3MA (Reverse Cylinder)
2008 Street Triple 675 RR - spirit of an RZ
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dave_356
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#8 Post by dave_356 » Thu Jun 17, 2010 9:13 am

cool sign
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T.RexRacing

regarding that transmission

#9 Post by T.RexRacing » Thu Jun 17, 2010 10:18 am

eewwwwwwwwwwwwwwwwwwwwwwww...........................that's nasty.
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Smoker
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#10 Post by Smoker » Thu Jun 17, 2010 11:10 am

Very interested to see how this engine is built and will perform! :smt023

2 of my RZ engines could have porting by SpecII, but I don't know how to identify it.
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petros67
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#11 Post by petros67 » Thu Jun 17, 2010 1:46 pm

Roger ,
You got my full attention !!!
This is what we unexperienced guys need to see :smt007


I'm sure I'll need your directions with my other project too.


Thanks
Petros
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wobbly
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#12 Post by wobbly » Fri Jun 18, 2010 8:56 pm

In the spirit of warm and fuzzy cooperation here, if you want a certain thickness alloy spacer to position the cylinders easily with a stock gasket each side, I have the laser setup and can bang some out in just about any size that plate is manufactured.
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Would only take a few days to get to you on an international courier.
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ghezzi
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#13 Post by ghezzi » Fri Jun 18, 2010 10:50 pm

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Last edited by ghezzi on Fri Jul 02, 2010 1:25 am, edited 1 time in total.
I'd rather ride a slow bike fast, than a fast bike slow.
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Joken
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#14 Post by Joken » Fri Jun 18, 2010 11:32 pm

Nice showroom....
I am jealous...lol
can't wait for more pics...
Thxs
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ricar
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#15 Post by ricar » Fri Jun 18, 2010 11:32 pm

Can you get into this ATF thing for a bit? I'm just wondering if this would bennifit a 26 year old bike that more than likely has some crap in the cases. Do you just put some in and run it for a bit then change it out?
84 RZ. Half naked, SpecIIs, GSXR front end, FZ swingarm, SV rear wheel, trail tech speedo/tach
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