DS 1000 engine history

[koko64]

Sell the S2r and buy He Mans S2R Evo

[RB]

Well thanks for the replies, but I am keeping my S2R, and I’m not ready for this overhaul just yet as I’m about to begin a garage build. So I’m just trying to align my quackers.

[koko64]

My suggestion was to save you from the heart break, pain and trial and error He Man endured to create an absolute beast of a bike. . His pain is your gain. I'd buy it but Im across the pond.

[GK]

A pic or two of the beast might entice a purchase!!

[stopintime]

A pic or two of the beast might entice a purchase!!

No!


 

[RB]

My suggestion was to save you from the heart break, pain and trial and error He Man endured to create an absolute beast of a bike. . His pain is your gain. I'd buy it but Im across the pond.

Thanks for looking out, but I enjoy the process of building my own bike and the knowledge I gain from it. I am considering what it would cost for a salvaged monster with the proper engine. Whatever engine I get i am looking to do a fresh rebuild so i know what I am working with the the start.
And yes Pics of HeMan's bike would help!!

[thorn14]

Just get a 1000 engine with the harness and headers (unless you are still planning on doing a custom exhaust as the 1000 needs longer headers). I think you can shave the wider engine cases down to fit. (Someone correct me as I just remember threads on it)

The 800 is a small case and I'm not sure what all can be shoehorned in there as far as cranks etc off the larger engines, and it probably isn't worth the hassle.

The difference between the 1100 and 1000 probably isn't worth the extra cost in my mind.

[He Man]

Just get a 1000 engine with the harness and headers (unless you are still planning on doing a custom exhaust as the 1000 needs longer headers). I think you can shave the wider engine cases down to fit. (Someone correct me as I just remember threads on it)

The 800 is a small case and I'm not sure what all can be shoehorned in there as far as cranks etc off the larger engines, and it probably isn't worth the hassle.

The difference between the 1100 and 1000 probably isn't worth the extra cost in my mind.

depends on what the cost is. There are a lot of differences between the motor in terms of liveliness. The 1100 is MUCH better due to the light weight everything. BUT, it comes at a premium cost.

[RB]

Looking at prices and the 1000DS is almost as much as the 1100DS when you can find them. I'd be happy with a 1000 for sure, but if i can find the 1100...


thorn,
Why do you say the 800 is a small case? What makes it smaller than the 1000? I'm not talking about displacement.

He Man,
Read all your posts on the swap you did, real impressive stuff, your thread is the reason I wanted to source an 1100 for my bike.

Thanks
for all the info guys!!!

[Speeddog]

800 is a 'small crankcase' motor.

Roughly, all air-cooled Monsters 803cc and less are 'small crankcase'.
Both 5 and 6 speed transmissions were used, not interchangeable with the 5 & 6 speed units from the large crankcase.
Crankcase itself is about 12mm shallower.
Countershaft sprocket is ~8mm closer to the crank.

More info here: http://www.bikeboy.org/duccapacities.html

Major difference among motors both small and large case is the swingarm pivot configuration.

Most are set up with a rotating pivot shaft, and the swingarm pivot bearings in the cases, AFAIK all Monsters are this way (M1200/M821 and other recent stuff *may* be different).

Others are SBK style, with the pivot area narrower, and the bearings are in the swingarm.
These models all have a frame member that attaches directly to the fixed pivot shaft.

[RB]

Speed, thanks from the info. So even though the S2R came in 800 & 1000 the cases are different. I would think manufacturing costs would drive similar bottom ends across the range.

[thorn14]

I see 1000 engines routinely for $1000, the 1100's are at least $1500, but more likely $2000. So from a cost perspective, to me, an 1100 isn't worth it since you also have to buy other items.

I thought the weight savings was only a few pounds and mainly due to the cases being cast lighter.

[RB]

I don’t see monster  ds1000 engine for under $1k ever, where you lookin? I’m not ruling them out at all,  but I’d like to try to get the 1100.... I have time to wait and search. Will an extra $1k be worth the newer lighter 1100 difference? To me, for the bonkers factor the 1100.... last of the air cooled dry clutch. Plus, He Man did it so I have that road map to give me a leg up(thanks!).
Seriously, I’m more concerned about getting an engine that fits my swingarm.

[Speeddog]

Speed, thanks from the info. So even though the S2R came in 800 & 1000 the cases are different. I would think manufacturing costs would drive similar bottom ends across the range.

Small cases started as the Pantah in '80 as a 500, perhaps Ducati figured 800 was far enough.

[He Man]

I don’t see monster  ds1000 engine for under $1k ever, where you lookin? I’m not ruling them out at all,  but I’d like to try to get the 1100.... I have time to wait and search. Will an extra $1k be worth the newer lighter 1100 difference? To me, for the bonkers factor the 1100.... last of the air cooled dry clutch. Plus, He Man did it so I have that road map to give me a leg up(thanks!).
Seriously, I’m more concerned about getting an engine that fits my swingarm.

When i was searching, most of the DS1000 were about $1500, $1000 sounds right for now. the 1100 came in many flavors, there was a DS1100 that ran a short period of time, then there was the single spark 1100 that lived in the monster 1100S (which is where my motor came from). That motor, as you saw in my photos had lightweight cases and gears. I dont know what the total weight difference was, but you aren't really buying these motors for performance, its more about the most fun bang for your buck. If thats the case, consider really if you want to do the swap. I only did it because i had no choice, it was throw the bike in the trash, or replace the motor and keep riding it. The swap was a lot of work in terms of investigating if it were possible. Obviously at the time, I only knew of one other person who did the swap and I could get in contact with him, so I tried to publish as much as I could at the time.

Id like to have a tricked out monster, but my time these days are a premium that I dont want to give up time to wrench on a monster, when I could be riding my KTM  (dirtbike). Hence why I would be okay selling it off. The bike itself is worth $0 without the engine. So I would basically tear out the motor and ECU, and sell off as much as I can, then scrap the rest......then buy a powerful Dual sport like a 690, or a tricked out XL650R....

eitherway, if you have any questions about doing the swap, dont hesitate to contact me. I think i put all the info into that blog, but none the less, ask me and save yourself the trouble of figuring things out the hardway!