Klemm Research Tri-Z 350

[Old 179]

Dirt Wheels January 1986:
Article on a 85 tri-z with a big bore (350cc) conversion. Used a 38 flat side Mikuni smooth-bore to a 40. Had a Trinity 6 inch extended swingarm. Center R/L cases had to be machine to take the new cylinder.
Was shown in the sand dunes. Wander if our sand buddies ever has seen one of these or heard of these. Possible they may not have sold many! That makes three different bores for the tri-z. 200 debore, 250, and now 350. Any others????

[03 ORANGE SHEE]

i too have heard of this 350 z, never seen pics, nor do i know what rod they used to stroke it, but id love to find out!

[RideRed250R]

never seen a 350 tri-z... seen about every other thing tho... seen a banshee with a tri-z front end
was pretty bitchin
Adam

[Darius1502]

I have that article. I know its possible. The cylinder could be re-sleeve could'nt it to about 320 or so.

Would a piston from another YZ work? For example, YZ 400 (the old two stroke). I know they make 300 kit pistons for the new Yz's. The only issue is port timing. I don't know much about how this could be done....but I can't believe that some of the smarter folks have not already done this. Also I though someone would have put a 2000 or newer YZ 250 engine the Tri Z.

[Old 179]

i too have heard of this 350 z, never seen pics, nor do i know what rod they used to stroke it, but id love to find out!

No other rod was mention.

[MTS]

I have herd Rumors of a 380 Tri-z running around here...yet to see it tho.

[03 ORANGE SHEE]

darius, could you please print the article for me and the rest of 3ww to read?? THANKS!

[Dammit!]

My Z is alledgedly a 300 but I haven't pulled the top end to verify it yet.

[Billy Golightly]

Someone down here has a 300cylinder but hasnt done anything with it...

[Mosh]

I have that article. I know its possible. The cylinder could be re-sleeve could'nt it to about 320 or so.

Would a piston from another YZ work? For example, YZ 400 (the old two stroke). I know they make 300 kit pistons for the new Yz's. The only issue is port timing. I don't know much about how this could be done....but I can't believe that some of the smarter folks have not already done this. Also I though someone would have put a 2000 or newer YZ 250 engine the Tri Z.stay tuned folks. sprock racing is making my TRI-Z a 310cc kit.:naughty:when he gets the specifics dialed in,this kit will be available from him for purchase.along with the coolheads:)

[Darius1502]

stay tuned folks. sprock racing is making my TRI-Z a 310cc kit.:naughty:when he gets the specifics dialed in,this kit will be available from him for purchase.along with the coolheads:)


I'll get to scanning that article. I will be about a week or so.

I'll find this thread an post it.

Wow a 310 cc kit...I like that idea!!

[Tyler]

I remember reading that article. I also remember a mechanic who purchaed the kit after reading the article. I remember it was a lot of modification to the motor. I also remember rideing it once and being amazed at how much power and torque it had everywhere. It was also quite expensive. I also remember it would eat the Banshee when it first came out by a large margin. There was a reason it used a +6 swingarm. lol. Klemm Research did a lot of cool things back in the day. Does anyone remember the tri-z motor in the early quadracer chassis? a very near true bolt in. The Z motor made a lot more power and was much more reliable. The Suzuki was really fast with that set up.

[Fox250R]

I got it in one of my older mags i would guess 87 88 ish...PIcs and everything! Looks MEAN!

[gasmask]

in 1995 i bought a big bore kit for my 86 ytz from trinity. i paid $410.00 for it. that was the new sleeve, piston kit, port matching and head mod. i had to sent tnem the head to re'cc it because i could not crank it. then i only weighted about 130 lbs. then i got in some trouble and my silly a__ wife sold my shi_. but trinity did make a big bore kit for the tri-z. that i know for sure.

[Tri-Z 250]

I'd give Harry a call at Trinity Motors, he is the old Yamaha Big Bore expert out West. My guess is he didn't make the swingarm and he did the motor work. He may have built the bike, but I know he doesn't make swingarms. He would have sub out the swingarm fab work. He makes some fast motors and up into about 8yrs ago he didn't make pipes. A Trinity swinger, seems like you might have your facts mixed up, but if anyone has a Big Bore kit Harry would.

[Yamahondaman]

Someone down here has a 300cylinder but hasnt done anything with it...
:naughty: ..................

[Billy Golightly]

Does that mean someone has done something with it? haha.

[Darius1502]

I remember reading that article. I also remember a mechanic who purchaed the kit after reading the article. I remember it was a lot of modification to the motor. I also remember rideing it once and being amazed at how much power and torque it had everywhere. It was also quite expensive. I also remember it would eat the Banshee when it first came out by a large margin. There was a reason it used a +6 swingarm. lol. Klemm Research did a lot of cool things back in the day. Does anyone remember the tri-z motor in the early quadracer chassis? a very near true bolt in. The Z motor made a lot more power and was much more reliable. The Suzuki was really fast with that set up.

Man thats awesome that you got to ride that bike!! (er...trike)

[Curtis-Tecate3]

Harry Klemm is still around if anyone wants to go to the source...
He is not in the ATV industry anymore but still doing 2-strokes building PWC motors. He has a company called Group "K" in Arizona.
http://www.groupk.com

A cycle shop that bears his name is still around in Riverside California although without his influence. Klemm Cycle.

Harrys old company back in the day was Klemm Research.

Curtis.

[Darius1502]

Someone should call him.

Honestly, I need to look at the article, but I don't recall them stroking the motor. I think they just bored it out and then had a big piston.

You know if people really are interested a specialty company could make this for you.

How much of a bore job would be required to gain an additional 100cc

Can anyone do the math?

[slothminx]

You would need to bore it from 68mm stock to 81mm bore

[Billy Golightly]

Someone should call him.

Honestly, I need to look at the article, but I don't recall them stroking the motor. I think they just bored it out and then had a big piston.

You know if people really are interested a specialty company could make this for you.

How much of a bore job would be required to gain an additional 100cc

Can anyone do the math?


With the stock stroke it would require an 81mm piston to be 350.4cc's. I don't think thats do-able with the stock cylinder. You'd be into the water jacket and head studs. 76mm (308) would be really pushing it IMO from looking at my old big bore cylinder.

[Darius1502]

Alright well now I have to find that Article to see what they used!!

[LonesomeTriZ]

I am pretty sure I know where a 370 Z top end is sitting.

[Darius1502]

Where, where?

Is it a special cylinder?

I am still looking for the article but can't find it....Il'l stay on the case!

[Billy Golightly]

I am pretty sure I know where a 370 Z top end is sitting.


:lol: :lol: :lol: All these people (me too), "I know where this or that is sitting at..." But no one will fess up to owning it, quite funny :)

[03 ORANGE SHEE]

got off the phone with harry klemm, very nice guy, now i got to find $1000 to get some goodies..:naughty: ronnies stuff is going to be slow compared to what is to come......:lol:

[Yamahondaman]

Hey Billy ............
i think it might be where the FASTEST TRI-Z is ??..............FLORIDA ????
HUMMMMM ???
but alittle North !! :wondering

[Yamahondaman]

got off the phone with harry klemm, very nice guy, now i got to find $1000 to get some goodies..:naughty: ronnies stuff is going to be slow compared to what is to come......:lol:
Send him 2000.00 !!! "GIT" one for ME !!! :naughty:

[Darius1502]

got off the phone with harry klemm, very nice guy, now i got to find $1000 to get some goodies..:naughty: ronnies stuff is going to be slow compared to what is to come......:lol:


Hey Dog...what did you find out about the 350Z!!??

Talking to the man...spill the beans!!

[Cody]

I would like to see a pic of the Klemm research bike yall were talking about. Maybe someone would scan it, or is it on the 3ww home page?

[Billy Golightly]

Hahah uh oh, the Z guys are gettin fired up now! :naughty:

[Yamahondaman]

L@@K's like THAT THING i went and pick up in Chicago !!! Lonesome's Bike...
BUT......................... it was abit Diff. to find out Later ..... But GOOD STUFF ON IT !!

[Billy Golightly]

Looks like I'm gonna have to get really crazy with the 500 this coming year to beat ya'll Yamaha guys. Gettin all high tech on us with big bore kits and such haha.

[Yamahondaman]

Thats what i'm Talk'n Bout Billy !!! your "stock" Bike and "my" .05 over RAG !!!!
What's up with THAT ??? :wondering .............. :naughty:

[LonesomeTriZ]

Yeah, I hear that is the trike I now own. It sure does have a lot in common. By the way, I think that 370 is some where in Florida. But were. Now that is an interesting question.

[Yamahondaman]

Yeah, I hear that is the trike I now own. It sure does have a lot in common. By the way, I think that 370 is some where in Florida. But were. Now that is an interesting question.
as L O N G as it Stay's in Florida ....READ EM AND WEEP PEOPLE !!! :naughty:

[Bryan Raffa]

as L O N G as it Stay's in Florida ....READ EM AND WEEP PEOPLE !!! :naughty:

ha ha all the good trikes are migrating to florida! Right along with all the old people!:lol:

[LonesomeTriZ]

I wonder if there is a way to find out for sure if that is the Klemm trike I own. If so, I may have to change the plans I have for it.

[Darius1502]

Call Harry Klemn

[Yamahondaman]

I wonder if there is a way to find out for sure if that is the Klemm trike I own. If so, I may have to change the plans I have for it.
Ask Craig .."MWKE" He has the web site and info on who Ported and rode the bike but that was YEARS Ago when they did it ... from what Nathan said they got the part's "or the bike" from KLEMM or the YAMAHA Crew that ran his stuff....
he said that the tank,stator,etc was KLEMM !!!

[LonesomeTriZ]

The tank I still have. But graig told me the engine that came off of my trike went to you for a make over. When I got it, it had a tired 85 engine on it.

I think I may call Klemm. Not only would I like to know about my trike. but I would also like to get some goodies.

[LonesomeTriZ]

I just spoke to Harry Klemm. He said if I sent him some photographs of my Z, he might be able to varify the reports I have gotten. I sure do wish I could get a hold of the original engine. We also spoke of him doing a top end for me. I think I am going to send him a head and jug. It is not like I can not spare one or two.

[Lomax]

Which tri-Z are you speaking of louis? you have so many these days........

[LonesomeTriZ]

The stretched 86.

[mywifeknowseverything]

I I sure do wish I could get a hold of the original engine.

Cough,,,Cough,,,, You mean this one:naughty:
http://images1.snapfish.com/3478%3B37%3B8%7Ffp356%3Enu%3D3239%3E%3A%3B3%3E873% 3EWSNRCG%3D3233%3A7%3A987369nu0mrj
http://images1.snapfish.com/3478%3B37%3B8%7Ffp356%3Enu%3D3239%3E%3A%3B3%3E873% 3EWSNRCG%3D3233%3A7%3A985%3B93nu0mrj
Dont Everyone start Callin ol Harry and Pissin him off before our Deal goes Through:naughty: :welcome:

[03 ORANGE SHEE]

what deal??;)
that klemm pipe is going to work nice with his port work,after the pipe is repainted that is;)

[Yamahondaman]

D A N G !!!! L@@K @ all that KLEMM STUFF these Day's !!!
What's NEXT ......... The Skunk Ape will RE-APEAR !! :lol:
MAN !!!! WHAT A PERTIE MOTOR !!! .... 1st. Over Bore .... NICE !!!

[mywifeknowseverything]

That freakin oil Cap REALLY sets it off:beer

Lonesome.....I just now figured out why your Bike is so Slow.....Its been VIOLATED!!!!!!!:lol: :w00t:

[hrc85250r]

i like the klemm pipes, there was a guy near me that had a mx klemm 85' 250R. he also had a bunch of R parts like a calfab swinger and a short track kit from back in the day, but he ebayed it.

[03 ORANGE SHEE]

i got the motoplat off the klemm motor craig has now, you have been double violated!!!:D

[LonesomeTriZ]

That trike is now just a shell of its former self. I have money now. So I can actually pay for this stuff you all would like to see it back in the frame it belongs in.

(hint, hint)

[mywifeknowseverything]

You dont have enough money:D :welcome: Maybe you just need to send me the Roller:w00t:

[LonesomeTriZ]

Well, with out all the stuff that came off of it, it really isn't worth anything. I have been using it as a moch up chassis for future biuld ideas.

[mywifeknowseverything]

Well, with out all the stuff that came off of it, it really isn't worth anything. I have been using it as a moch up chassis for future biuld ideas.

You really arent any fun to F With:rolleyes: :banned:

[LonesomeTriZ]

I know, that is why I took the route I did. A little reversal there. :p

[Yamahondaman]

Well, with out all the stuff that came off of it, it really isn't worth anything. I have been using it as a moch up chassis for future biuld ideas.
HUMMMM ??? Maybe for a "Kansas" Motor ... :naughty:

[LonesomeTriZ]

;) :D :naughty:

[03 ORANGE SHEE]

speaking of that skillsaw motor, i bet craig would trade the 1 over klemm motor for that 370 , and you pay all shipping charges for both, plus $250, and i bet you guys will have a deal. in fact, if you do, ill DONATE THE MOTOPLAT for free back to the proper engine:lol:

[LonesomeTriZ]

speaking of that skillsaw motor, i bet craig would trade the 1 over klemm motor for that 370 , and you pay all shipping charges for both, plus $250, and i bet you guys will have a deal. in fact, if you do, ill DONATE THE MOTOPLAT for free back to the proper engine:lol:


I almost condsidered that idea.:lol:








:banned: :crazy:

[Yamahondaman]

Hey Billy ....... the cyl. measured at 73 mm !!!!! BIG RAG !!!
BBRRRAAAPPPPPPPPPPPPPPPP

[Darius1502]

Guys,

I am so sorry..I can't find that article anywhere!

I remember it clearly but its not turning up!

I'll keep looking!!

Thanks!

[maggiesboy]

Cough,,,Cough,,,, You mean this one:naughty:
http://images1.snapfish.com/3478%3B37%3B8%7Ffp356%3Enu%3D3239%3E%3A%3B3%3E873% 3EWSNRCG%3D3233%3A7%3A987369nu0mrj
http://images1.snapfish.com/3478%3B37%3B8%7Ffp356%3Enu%3D3239%3E%3A%3B3%3E873% 3EWSNRCG%3D3233%3A7%3A985%3B93nu0mrj
Dont Everyone start Callin ol Harry and Pissin him off before our Deal goes Through:naughty: :welcome:


wow that is purdy:D