RZ/RD 350 & Misc. 2-Stroke Tech BBS

Technical Forums for Two-Stroke Nuts
It is currently Mon Aug 20, 2018 8:19 pm

All times are UTC - 4 hours [ DST ]




Post new topic Reply to topic  [ 486 posts ]  Go to page Previous  1 ... 29, 30, 31, 32, 33
Author Message
 Post subject: Re: Track Bike - Plan B
PostPosted: Thu Aug 09, 2018 3:44 am 
Offline
-----
-----
User avatar

Joined: Thu Oct 01, 2009 1:31 am
Posts: 1548
Location: Alberta, Canada
Hey Rusty. Thanks for the offer. I’ll send you a PM.

Questo vecchio rz wrote:
7.) Make sure your clutch is in great condition, not good but great.

Thanks for tip. You are the man. [smilie=notworthy.gif]

My clutch arrived today and I put the fiber plates in tranny oil to soak.
I drained the old tranny oil and coolant out of the bike, removed the clutch cover, and pulled the clutch.

The first 6 clutch plates came out fine.
The last clutch plate came out in pieces.

And there’s a pretty big piece that’s still missing. :smt012
There was a lot of crap in the old oil and a few bits of aluminum shrapnel in the clutch cover,
but I don’t know if that accounts for all of the missing material or not. :smt017

The only way to know for sure is to split the cases and check the tranny, and that just ain’t gonna happen.

After work tomorrow, I’ll install the new clutch, put the bike back together and make it run.
Then I’ll dig out and pack up all the parts, tools, cloths and gear that I need for the weekend,
so that I can get on the road early Friday morning to make the 10 hour drive to the racetrack.

It looks like I’ll be testing the new clutch during the 1st round of qualifying on Saturday.

After qualifying, I’ll drain the tranny oil and install some new oil.
Hopefully the oil flush will get rid of some more of the crap that might still be in the tranny.


Attachments:
r061.JPG
r061.JPG [ 126.79 KiB | Viewed 187 times ]
Top
 Profile  
Reply with quote  
 Post subject: Re: Track Bike - Plan B
PostPosted: Sat Aug 11, 2018 5:16 am 
Offline

Joined: Mon Mar 03, 2014 8:44 pm
Posts: 2826
Location: Alberta, Canada
Rusty is awesome!

Steve, you make that bike look big. Everyone tells me, I make my bike look small.

_________________
Rory


Top
 Profile  
Reply with quote  
 Post subject: Re: Track Bike - Plan B
PostPosted: Sat Aug 11, 2018 5:56 am 
Offline
User avatar

Joined: Sun Aug 16, 2015 5:55 pm
Posts: 781
Location: Reconquista of California
. 10 HR DRIVE TO THE TRACK
Yiiiikes [smilie=beer.gif] that's dedication...lol obviously ,your clutch is going to engage much quicker and harder, be prepared for a jumpy start only due to the fact your not used to it...you'll get it, just focus on a optimal quick release just enough to keep your revs climbing. Should be fun, enjoy.
Once you get all the little things done, you'll be having alot of fun.

_________________
Banshee (Baja) race bike, Lonestar A-Arms, dual 9" L.E.Ds, FMF, Toomey,19cc domes, IMS tank, run flats.
96 GSXR SRAD, Future Yoshimura Lucky Strike rep.
85 custom Tri-Z
RZ/YZR track bike(project)
86 VFR750 RC24 Merkel replica (project)


Top
 Profile  
Reply with quote  
 Post subject: Re: Track Bike - Plan B
PostPosted: Sat Aug 18, 2018 2:10 am 
Offline
-----
-----
User avatar

Joined: Thu Oct 01, 2009 1:31 am
Posts: 1548
Location: Alberta, Canada
I got the new clutch installed and had the bike together around 9:30 at night.
Took the bike for a 3 or 4 mile ride and everything was fine.
Now that I had a bike to race, I started packing up everything else that I could possible need on a 4 day road trip.
We left Calgary around 11:00 am Friday Morning and arrived at the track in Fort Saint John about 10:00 pm that night.
Set up camp, had a few wobbly pop, and called it a night.


Saturday, Aug. 11, 2011 – Race 4 of the CMDRA series.

Tech Inspection at 8:30 and then an open test and tune starting around 10:00 am.

I made 2 runs in the open test session, and then did 4 qualifying rounds (2 for Street and 2 for the Hot twin class).
During the first 6 passes down the track, my ET’s were all between 13.22 and 13.36 seconds.
Then I went out for round 3 of the Hot Twin class and ran 13.04 seconds, and I had my best reaction time ever, at 0.101 seconds.
In round 3 qualifying for Street I THOUGHT I ran 13.23 seconds. (more about this later)

For the Elimination rounds, I dialed in a time of 13.05 seconds.
(It was a bit optimistic. I should have gone with 13.20, but I was feeling lucky.)

In Round 1 of the Street Eliminations, I ran at 13.34 seconds and lost the race.

In Round 1 of the Hot Twin Eliminations, I had my worst run of the day, so far.
I ran at 13.39 seconds, but…..I still managed to win.
My competitor, who is in second place in the Hot Twin class, stalled his bike at the light.

Like my buddy says, it’s not the guy who does the best that wins, it's the guy who f*cks up the least.

In Round 2 of the Hot Twin Eliminations, I ran a dismal 13.45 seconds and was soundly defeated.


Sunday, Aug. 12, 2011 – Race 5 of the CMDRA series.

There was no test session, so I only made 4 qualifying rounds (2 for Street and 2 for the Hot twin class).
My ET’s were between 13.17 and 13.59 seconds. Not great.
The only good news was that during round 1 of qualifying for the Hot Twin class, I had a reaction time of 0.075 seconds. Whoop. Whoop

For a dial in time, I went with 13.20 seconds. It seemed reasonable since my best run of the day was 13.17.

In Round 1 of the Street Eliminations, I ran at 13.08 seconds, broke out, and was eliminated.

The bike was running pretty good, so I quickly changed my Hot Twin dial in time to 13.10 seconds.

In Round 1 of the Hot Twin Eliminations, I ran 13.05 seconds, broke out, and was eliminated

And that was it. My racing was done. Nothing left to do but load up the bikes and head for home.


Top
 Profile  
Reply with quote  
 Post subject: Re: Track Bike - Plan B
PostPosted: Sat Aug 18, 2018 2:10 am 
Offline
-----
-----
User avatar

Joined: Thu Oct 01, 2009 1:31 am
Posts: 1548
Location: Alberta, Canada
Highlights of the weekend.

Let’s start with the thing that was incredibly obvious on the first pass down the track.
The new gearing and clubman bars are a great improvement.
Over the weekend I made 19 passes down the track and didn’t do any sky wheelies. Not even one.

I did pull off a couple of really nice 2nd gear wheelies.
On my 1st pass of the day, I hit 2nd gear and whacked the throttle and the front wheel started coming up, and up, and up, and finally I chickened out and shifted into 3rd.
But the wheel came up nice and slow, not like the wheelies that I was doing at the other tracks, where the wheel came straight up, really fast.
During the first round of qualifying I did the same thing, only this time I held the throttle and rode it out.
After qualifying, a couple of old guys who were watching came over to check out the bike and chat.
They said the wheel was about a foot off the ground, and I carried it for 20 or 25 feet.
(If that’s true, then it was my best wheelie ever in my life,).


So, the new gears and bars helped prevent the out of control, 1st gear wheelies, but there was also another contributing factor.
My Clutch Sucks.

The new EBC clutch plates worked great. They didn’t slip at all. The clutch releases fine and engages nice.
It works great, on the street.

But there’s a lot of play in the clutch basket, and there are some grooves wore into both the basket and the clutch hub.
The grooves are preventing the plates from fully separating and the clutch drags a bit.
At 2000, 2500, 3000 rpm it’s not noticeable at all.
At 4000 rpm, the clutch wants to pull the bike forward, and I literally have to hold it back, using my feet.
At 4500 rpm, there’s no holding it back. I have to apply the front brake to keep the bike from moving.

For the majority of my runs last weekend, the engine was revving at 4000 rpm when the light turned green.
Unfortunately, this rpm was bit low and the bike would still bog, before hitting the power band and taking off.

So, my clutch isn’t ideal, but, as we all know, there is a simple solution to my problem.
Just roll on more throttle and slowly let out the clutch.
You know, - Learn How To Ride The Motorcycle.

It sounds so simple when you say it fast.
And on the street, I have no problem; I’m a master at slipping a clutch. I can pull away from a stoplight at an idle.
But put a green light in front of me and I forget to roll on the throttle as I’m letting out the clutch.
Ooops, my bad. But I’m working on it.
(Really hope I catch on soon. Just about stalled the bike on one of my runs)



My reaction times are coming down. My best time so far is 0.075 sec.
I finally had a reaction time that was measured in hundreds of a second, instead of tenths of a second. Whoop. Whoop.
In Rimbey, my Average reaction time over 20 runs, was 0.408 sec.
In Edmonton, my Average reaction time over 12 runs, was 0.328 sec.
In Ft. St. John, my Average reaction time over 19 runs, was 0.286 sec.


My E.T.’s are also coming down
In Edmonton, my Average ¼ mile E.T., over 12 runs, was 13.613 sec.
In Ft. St. John, my Average ¼ mile E.T., over 19 runs, was 13.287 sec.

In addition my 60’ times are also coming down.
In Edmonton, my Average 60’ time, over 12 runs, was 2.360 sec.
In Ft. St. John, my Average 60’ time, over 19 runs, was 2.265 sec.

From looking at the averages, and comparing them to individual runs, a reduction of 0.1 seconds on my 60’ times, is giving me a 0.2 to 0.3 faster E.T.
On my faster runs, my 60’ times have been just over 2.1 seconds.

Qualifying Round 1 - 60’ time of 2.119 sec., and an E.T. of 13.038 sec.
Elimination Round 1 – 60’ time of 2.113 sec., and an E.T. of 13.058 sec.

If I can ever learn to launch this bike, I’m hoping to get my 60’ times under 2.0 seconds.

For comparison, the 2 Victory bikes have 60' times of 1.8 to 1.9 seconds, and ¼ mile times between 12.4 and 12.6 seconds.

The Kawi triple is still being tweaked, so it didn’t race last weekend, but it did make 3 passes down the rack during the open test session.
His 60’ times were between 1.4 and 1.6 seconds, and his ET’s are getting quicker.

Run1 in 11.11 sec. at 120 mph
Run 2 in 10.78 sec. at 119 mph
Run 3 in 10.16 sec. at 123 mph.



And the final surprise for the evening.
In my last 2 rounds of Elimination on Sunday, I went too fast, broke out, and lost both races.
I was a little bummed. If I was going to go too fast, the least I could have done was break into the 12 second bracket. WTF?

Last night I was organizing my time slips and putting all the information into a spreadsheet, when I noticed something interesting.

In Sundays Round 3 Street Qualifying, I ran at 13.038 seconds.
In Round 3 Qualifying for Hot Twin, I ran at 13.226 seconds. Or so I thought.
When I rechecked the time slips, I discovered that it was the guy in the other lane that ran 13.226.
My time was actually a new record for me.

60’ time of 2.104 seconds,

and a ¼ mile time of 12.975 seconds. :smt026


Attachments:
r062.JPG
r062.JPG [ 169.05 KiB | Viewed 50 times ]
Top
 Profile  
Reply with quote  
 Post subject: Re: Track Bike - Plan B
PostPosted: Sat Aug 18, 2018 4:41 am 
Offline

Joined: Mon Mar 03, 2014 8:44 pm
Posts: 2826
Location: Alberta, Canada
Peewee Gleason, look out. Old man Brownlee is moving in.

Great report Steve. Time to drop your dial in time. Oh, you might want to file off those clutch basket grooves on the basket fingers. That would help you a little.

_________________
Rory


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 486 posts ]  Go to page Previous  1 ... 29, 30, 31, 32, 33

All times are UTC - 4 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group