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Can we get some T shirts???? 2tworld logo I'll take 2 XL

Get this post going mine are about worn out
bought in 2001


JT

LOVE the pump


Like your 2 stoke old world tech, can make them work and work well. I have a few on hand that MotoCarrer pulled off bikes. Most work, knowledge about what pump works on what bike is key.

JT

OK I don't know shit about 2 strokes, after 30+ years of tuning... Do not belvie me do your own research like I did 30 years ago. Talk with Kenny Roberts, CalCruthers, Erv Kanamot, Scott Clough, John Ritter, MotoCarrera.

Denco engineering was local, I had a KH250 I wanted it to sound awesome, they knew of me a a shop rat for Honda and Yamaha, I got a part time gig. Porting and building pipes for Denco. I could ony get there 3 days a week,I had Vocational studies we were putting the 1st turbo on a Yamaha xs1100. I was the Hydro dyno guy. Did piston top rinds to reduce compression, remove 2nd ring on piston.



2 strokes
I loved 2 strokes a 100cc motor could make you scared.....
I got to drg race a few 250/350 from denco, had a good time. was quick

I got a Yamaha RD350 when my brother crashed my KH250, we traded.
  I learned about porting and chambers [the sound wave] liked the power. Used to race up Highway 9 everyday. One week end raced up my road for fun found a lame duck on a Hond 900f with number plates. Kicked his ass until the last corner, it was Reg Pridgmore. He found me at the gap and told me [like in my face] you should get off the street and race. OK  well he found me at Emery Honda and knew the parts manager and told him "Get him on the track"

OK #1 leak downs are Key to a well tuned 2 stroke.
  If it can hold 3# for 10 minutes- find the leak, 3 minutes at 6# still look for leaks.
Most leaks are intake manifold, some base gaskets- bad surfaces, bad heads same thing surfaces.

2stroke no leak
timing- more advance = quicker. More retard= pipe hit, find the setting that makes power.
jetting
start FAT, reduce jetting x2 [saves time] better go 1 steep smaller
Worse- 3 steps up - better increase until not good.
Adjust timing- mix ratio, jetting to obtain max tune.

I Blew up many a fast motors, learned and made corrections, end of season 2 stroke competition= max tune - frag a motor you got 10 month to fix. Who made it to the end was key.


JT
offering tuning for a price
seehttps://yamahard-treacher.com

I quit
Doing make it work jobs, still have  2 in my shop 2-7 years later [lazy customers].
  Sold off some stuff to keep my head above water, heard I would love to know what you know.

Well I made a site https://yamahard-treacher.com/
I have half wits- so far [1/2 wits I make it run ok THATS all I want]
No Idea most GP 2 strokes were wasted at end of race- just like 1/4 mile bikes.
  That is what I used to do, 1/8 of a second a lap wins.
Not many old men now that can afford these bikes want to do that. Whats ok I tune to make you happy. Your TZ is just fine [not] 20 + hp if tuned right. OK I would be scared if I rode a well tuned tz250. But I would see what it can do... Just me, old fat racer.
I have tuned jet skies, tz's, RDs, R5's , Rz's, RS's, gammas for racing. I try to get them on the edge in performance. But back off due to it is a lawn mower to the owner.

We all under stand this. If you start a well tuned bike, when you put your helmet on- You get your head straight. Ride HARD them test as riding around bike.  I loved owners that tried to blow up my motors 80 mile break in, WFO came back an stated not right. Love you I will make it right. timing and jetting and off they go, they don't seem to hang throttle that long after. Come back with a smile.
I do not ride customers bikes unless i get feed back of something weird. I ride WFO all the time, look for droops in power= transitions. Must wheelie 1-2 pop up 3rd good tune stock.

WHO would like to learn how to make these bikes fast?
  Whats it worth? I am closing my shop but want to help Potential tuners.

I need $100 an hour to teach, $250 an hour to evaluated = tear down top end
parts are on you.

I can put you up here at training center for $75 a night, you by food and refreshment.
Is this out there?
You will have to sigh a liability waver if you want to shoot, insurance is on you and your bike. I like to spend at least 2 days with customers, ride and tune... COTAS is just down the road, track day tunes are $350, and I cook.

Real question can I make you a better tuner- I think so 2 days you will know the basics one more day might get the inside scoop.

JT
trying to make a living


I also do 4stroke tuning, dynajet, air intake etc. Some carb work depending on models.

Can we get some T shirt- like the old days????

Mine are worn out

Ill take 2

JT

I saw a vid that had Uighers in china slave camp at the end was VR46 merch.


I see why he is millionaire now.

Will not buy his products or nike- apple etc.

JT

Sad     

Did you see the OMG's and OMFG's love motogp

https://www.youtube.com/watch?v=hIHDeNjo0Ig
Q1
The guy crashes in the 1st 2 minutes hope on his spare and gets 2nd fastest {LSAV} OMG
OMFG he is 1st......

Q2
1 minute to go
Mmarq #1
Now Vin #1
Qua #1

OMG- in the last 1 minute #1 changed 3 times- Love qualifying on a wet/dry track
  What fun to watch the fastest guys on 2 wheels. O wait where are the galls I do not want to exclude anyone...??
I fallow the galls as well -flat track -fast chicks man


JT

Great progress, if you need some help I am a phone call away..
I kind of know those bikes and can help you out on a good runner to a great runner.

I teach
https://yamahard-treacher.com
I am here to help

JT

You have the right pipes Crawford pipes make good usable power.
Rick was a friend miss him yelling at me for touching his bikes. I have done a few RG's in my past. I like them over RZ's way simpler. I am a RD guy so Yamaha is my staple. But Dam those thing go fast.....

Will be watching your progress.

JT

RD400 has this issue I have seen- not so much in 350 rds. 400 Shaft stick out farther..
due to if the bike has gone down on the left side and the shifter got hit- ovals the aluminum in the case. Seal looks good- behind the seal is ova-led- hardened steel shaft hitting soft aluminum.

Machinist can bore and install oilite bronze insert to solve leak, anything other than that is a FIX- short term. On next engine out have it done- other wise place on center-stand to reduce leakage.
Side stand will leak bad.


JT

Carbs spit= normal
Timing is key on 2 strokes
2.0mmBTDC if stock [run ave gas 100ll@ 50/50 no ethanol fuel] - old bike needs old fuel.
#1 timing 2.0 btdc- 1.8mm if piped [chambers]
Fuel:
Carbs- clean all passage ways- Emultion tube [main jet screw into] remove and clean
Air passage ways
Mick-VM28 carbs are not complicated
Pilot= 25-32.5 in size
Air screw [AS] 1.0 - 1.5
Main 125-280 depending
- choke if it does not work check float bowls- bottom of carb- chock carb has a though hole none chock has a blak.
100+ psi compression it will start:
IF you have 12vdc at points- coils
- idles high air leak - intake rubber manifold #1 - #3 crankseals
#3 right side smokes way more that left.. Left sucks air, right sucks oil

Have fun
JT

Times have changed I was #3 contributor back in the day Hwy9rd350b. Loved this site, have gone on to different stuff. Has been over 2 years since being on this site.
Sorry for all you that lost touch with me, life got kind of upside down.
Was looking for the rant I did on "The good the bad the ugly" on filters- can't find it, just glad to see SOCAL and Mark have keep things on the up and up.
Back in the day we had a very lively site "cant remember the name" US 2 strokers or something like that. Very abrasive but fun when you were right [SOCAL] was always right/ He lead me to 2stroke world, a better informative site I grew in.
Well I am an OLD 60 now 2 stroke tuner, had RDsOnly as a business for 10 years. Did over 1000 motors 140 restorations.....ETC.. I loved my hobby business but did not make a living at it.

So to date I have a horde of parts new and old have to make $$$ and reduce the foot print.
RD400 parts most all went 1st, have some Daytona parts lots of 350 parts R5 & RD
I know this group- EBAY $1000 us guys $40 so I like offering parts to those that know- they will be used. Have 9 motors R5-DS250-RD250 & 350, worn out cylinders good for big bore or re-sleeve , cranks- R5-RD No 400 cranks, boxes of parts. Come by a box of parts...

Will post again on other RD related stuff.

JT

Racks of parts,
motors, 2 frames
1 400 79
1 350
1 74 350 running $ [bo]2300
1 -rd250 project bike-
My 1975 RD350B    pristine [other than chrome] $5500 runs like a top...
many parts for rds.
Moto Carrera parts as well
looking for BULK deals= all parts & racks ,cabnets
Benches Every thing for sale - blast cabnet, parts washer, press, lifts[2]

  Need to get rid off most all my parts.   MAKE IT ALL GO AWAY

Come see have $2k+ and fill your truck up

JT
512-718-9570

Also selling 50'Toyhauler 20+' shop on wheels. only $85k

Beaubier  might do well we will see if he is agreeably to foreign foods.... He is small and light might do well.

JT

My hope to to help you- if it confuses you please call me. I am here for my 2 stroke friends.

JT
512-718-9570