Suzuki SV650 Engine

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1684zach

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Feb 3, 2011
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Bellflower, MO.
I am thinking about using a Suzuki SV650 engine on the plane I am currently building. They have a very solid reputation for reliability; and after a lot of research with my brother (a motorcycle guru), I think it has the best reputation, weight, HP, liquid cooled and '03 and after are all fuel injected. I will lock it in the gear I calculate to give the best prop RPM and strip the rest of the gears to save more weight. Any one have thoughts or concerns I might have overlooked-? I have spent the last few years asking lots of questions and doing a tremendous amount of research on this subject. If this works, I may use the big brother of the SV650, the SV1000 and mount it on my next project- CH750

-Zach
 

Jay Kempf

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I am planning to make a dampener to go between the prop hub and the transmission. I have used this on a much smaller scale in the paramotors I have built using small four cycle engines.
The Jetski version of this engine has a rubber damper and cast metal hub. I would bet the tapered output shaft is the same. You could use those parts to get a rubber output damper. I am looking at the jetski engine as is or with the newer electronic fuel and oil injection added on for my direct drive concept.
 

1684zach

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Bellflower, MO.
The Jetski version of this engine has a rubber damper and cast metal hub. I would bet the tapered output shaft is the same. You could use those parts to get a rubber output damper. I am looking at the jetski engine as is or with the newer electronic fuel and oil injection added on for my direct drive concept.
Can you put up a link to something that shows the engine-? I can't find, and had no idea that there was a jet ski version! But that sounds like what I need, with minimal effort involved.
 

Jay Kempf

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Kawasaki 650 SX TS SC X2 JM Motor Engine Jetski Jet Ski - eBay (item 270627561214 end time Feb-23-11 07:19:55 PST)

KAWASAKI JETSKI JS 650SX 650 DRIVESHAFT DRIVE SHAFT -93 - eBay (item 190316006100 end time Feb-10-11 17:57:11 PST)

Kawasaki 750/800 Jet Ski Rubber Drive Shaft Damper - eBay (item 320604934162 end time Feb-14-11 15:46:55 PST)

I gotta be a dope to give away my secrets! :)

The Jetski setup including exhaust, coupler, and driveshaft (modified to hold prop flange an thrust/radial bearing/housing all combine to make a nice direct drive. I would look at snowmobile final drives for off the shelf parts for a belt drive reduction unit. Same basic motor. These are all already made to fit in tight spaces and to be water cooled.
 

Toobuilder

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Mojave, Ca
Am I missing something, or does the fact that one engine is a Suzuki (SV 650) and the other a Kawi (650 SX) make a difference to the final drive?
 

Jay Kempf

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Am I missing something, or does the fact that one engine is a Suzuki (SV 650) and the other a Kawi (650 SX) make a difference to the final drive?
I have been looking at Jet Ski plants. Substitute Tigershark PWC 650 for Suzuki same, same.
 

1684zach

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Feb 3, 2011
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Bellflower, MO.
Am I missing something, or does the fact that one engine is a Suzuki (SV 650) and the other a Kawi (650 SX) make a difference to the final drive?
I actually have the Kawasaki 650 engine. The problem is, it is two stroke and on the heavy end of what I need. I like the Suzuki because it is four cycle, VERY reliable cheap to buy, cheap to maintain, light, and it has my "psru" built in already.
 

1684zach

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Bellflower, MO.
I actually just stumbled over this in a separate thread:

Nouvelle page 1

I have been searching for several years to see if I would be the first to use this engine, but it looks like this guy beat me to it. Now, if only I spoke Bulgarian.
 

1684zach

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Feb 3, 2011
Messages
15
Location
Bellflower, MO.
I would be concerned about heat build up in the chain.

Richard
I don't think I will use a chain. I was thinking more of coming straight out of the transmission with a torsional dampener, then the prop hub. I just posted that link to show the exact engine I was thinking of using, and that someone has already beat me to the punch.
 
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