Topic: Yoshimura GS 750

[Leino]

Hi folks. Looking for information and pictures of the 1977 GS 750 Yoshimura racebike, working on a classic racing replica and would like to see what (if anything) was done to the chassis etc.

If anyone has period photos of other GS 750's raced back in the day, would love to see them also.
Anything pre-79 goes, when it comes to modifications etc. if I can prove it was used back then.

Thanks.

 Juha

[Wobbly]

But Yoshimura only started with Suzuki the following year: 1978.

[Wobbly]

I only knew what I read on their website: http://www.yoshimura-rd.com/content/company-history.asp
But I am eager to learn more about this interesting time period. I would appreciate pics as you progress.

In 1978, what would prove to be a long relationship formed with Suzuki. Yoshimura switched over to that brand and the results were immediate. The new Suzukis made massive power and they also had a chassis that handled! Pops knew that the competition was in serious trouble and he was right. Steve McLaughlin won the Daytona Superbike race for Suzuki on a Yoshimura built GS1000.

[Leino]

But Yoshimura only started with Suzuki the following year: 1978.

"McLaughlin finished second to Pridmore in the '76 championship. He returned in 1977 and raced for Yoshimura, at first aboard Kawasakis, and later on the first of the famous Yoshimura Suzukis. With Yoshimura, McLaughlin earned another important first. At Laguna Seca Raceway in 1977 he gave Suzuki its original AMA Superbike victory. "

Among various other sources, AMA motorcyclemuseum page gives me different information. Yoshimura continued with the GS1000 based bikes in 1978 though, so to my knowledge they only used the GS 750 based bike for a short while.

[Leino]

Oh yeah and the engine was actually a 944cc, 73mm GS 1000 pistons were used and the stock 750 rods were bored to accept the larger piston pin... at least this is what I heard today from a fairly reliable source.

[Leino]

I only knew what I read on their website: http://www.yoshimura-rd.com/content/company-history.asp
But I am eager to learn more about this interesting time period. I would appreciate pics as you progress.

In 1978, what would prove to be a long relationship formed with Suzuki. Yoshimura switched over to that brand and the results were immediate. The new Suzukis made massive power and they also had a chassis that handled! Pops knew that the competition was in serious trouble and he was right. Steve McLaughlin won the Daytona Superbike race for Suzuki on a Yoshimura built GS1000.

I also have a GS1000 Yoshimura replica engine going through some "maintenance"
This particular bike is a replica of their endurance bike used in the late 70's, special frame etc.

Small brother however was converted to classic racing form straight from the street and is in no way competitive or handling as it should so I'm aiming to make it safer and fun to ride.
The owner is not one of the quick guys but we are working on this thing so he could at least race with someone and have a good time.

[Retro Rocket]

I only knew what I read on their website: http://www.yoshimura-rd.com/content/company-history.asp
But I am eager to learn more about this interesting time period. I would appreciate pics as you progress.

In 1978, what would prove to be a long relationship formed with Suzuki. Yoshimura switched over to that brand and the results were immediate. The new Suzukis made massive power and they also had a chassis that handled! Pops knew that the competition was in serious trouble and he was right. Steve McLaughlin won the Daytona Superbike race for Suzuki on a Yoshimura built GS1000.

I also have a GS1000 Yoshimura replica engine going through some "maintenance"
This particular bike is a replica of their endurance bike used in the late 70's, special frame etc.

Small brother however was converted to classic racing form straight from the street and is in no way competitive or handling as it should so I'm aiming to make it safer and fun to ride.
The owner is not one of the quick guys but we are working on this thing so he could at least race with someone and have a good time.

Does your GS1000 have the XR69 frame Leino..?  I know a guy I can ask about the Yoshi GS750, no promises though...

[Leino]

I think the frame is a replica of the XR69, yes.
It's a customers bike, I just play around with the engine.

Please ask about the 750, any info highly appreciated! Thanks.

[Retro Rocket]

I think the frame is a replica of the XR69, yes.
It's a customers bike, I just play around with the engine.

Please ask about the 750, any info highly appreciated! Thanks.

I've sent an email already..   I think you'll find that the gs750 has the same bracing as the Yoshi GS1000....   I have a pdf file somewhere on the GS1000 Yoshi bike, I'll see if i can find it...

[Leino]

I've sent an email already..   I think you'll find that the gs750 has the same bracing as the Yoshi GS1000....   I have a pdf file somewhere on the GS1000 Yoshi bike, I'll see if i can find it...

Thanks Retro.

[Retro Rocket]

PM sent...

[Leino]

PM sent...

Thanks Mick! Some great stuff in that pdf you sent me.

[Retro Rocket]

PM sent...

Thanks Mick! Some great stuff in that pdf you sent me.

No worries mate, there's very little info about those early Yoshi Suzuki's, especially the 750...