Bunny, I have that same carb on a Mac saw motor and I got a rebuild kit for it at our local small engine shop for like $7.00 :thumbsup: The only thing it didn't have was a new stone filter :doah: I just cleaned the old one with carb cleaner :thumbsup: If you cant find one I would be happy to get you one and mail it to you:thumbsup:
ROTAX 185 cc, 2-cycle 9HP Engine from Wajax "Pacific Pumper Mark 3" Fire-Fighting Rig
OK, great-thanks so much! I have seen them online but for much more, that is a great price. I would gladly take two, if you don't mind. Let me know how you want me to pay you and I can add extra for shipping and gas money--let me know, no rush either whenever you get to it is fine. :thumbsup:
I actually picked up an additional carb (same kind) and hope to get at least one going right between the two. I hope to get back to this very kewl engine next week sometime, after I get my Taco 22 running and doing a swap meet over the weekend.
I think this Rotax in that Bonanza will be an awesome set up, kinda similar to the Hodaka engine they had as an option.
I actually picked up an additional carb (same kind) and hope to get at least one going right between the two. I hope to get back to this very kewl engine next week sometime, after I get my Taco 22 running and doing a swap meet over the weekend.
I think this Rotax in that Bonanza will be an awesome set up, kinda similar to the Hodaka engine they had as an option.
(62mm x 61mm) 184.23921054000002cc = 11.24297ci
Rotax 185's originally were for Water Pumps and Weed Mowers, some early Skidoo Sleds over seas used them also, some were also used on some Ultralight's, mainly the Lazer and were rated 9.4hp at 5000rpms with a Muffler!
https://en.wikipedia.org/wiki/Ultraflight_Lazair
There was also a 163cc Rotax in the early 60's Sleds.
The Rotax 185 with a Good Tuned Pipe and some mild Porting & Polishing and a CR Bump could make 18-22hp at 5000rpms.
A 246 Skidoo Elan/Blizzard Single was 29hp. I want to say the Rotax 185 had a very low CR like 7.0 or 7.5. The Head used sets the CR!
Rotax 185's originally were for Water Pumps and Weed Mowers, some early Skidoo Sleds over seas used them also, some were also used on some Ultralight's, mainly the Lazer and were rated 9.4hp at 5000rpms with a Muffler!
https://en.wikipedia.org/wiki/Ultraflight_Lazair
There was also a 163cc Rotax in the early 60's Sleds.
The Rotax 185 with a Good Tuned Pipe and some mild Porting & Polishing and a CR Bump could make 18-22hp at 5000rpms.
A 246 Skidoo Elan/Blizzard Single was 29hp. I want to say the Rotax 185 had a very low CR like 7.0 or 7.5. The Head used sets the CR!
Rotax 185?
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What Size Carb was used on this 185?
Was the CR 8.0 or 8.5?
Wow, OK. . .thanks for that info! I was worried that vacuum port would leak or something I guess, and also not sure if there were any huge differences between 2 and 4 stroke carbs? Running this Rotax is sounding more and more doable, as I have several extra Tecumseh carbs and they do mesh up to the Rotax carb mount.
I am going to give it a whirl in the next couple of days (once I finish a project on my van I am trying to wrap up) and see what happens. I'll try the stock carb first and if no-go, I can try a known good working Tec 5HP carb.
Two (basic) questions though, is this push-pull thingy on the front a compression release? It seems like it but the knob broke when I tried to push or pull it (the cable seems all stuck)
Also, there is this little yellow lever thingy I'm not sure what it is for....it goes in and out and makes a "chunk" sound when you move it but not sure what it is for?
I am assuming the red button is the shut off for the Bosch magneto but I sure wish I could find ANY kind of literature for this dang thing (I just have a kinda bad scan parts manual) . . ..even a basic operators manual would answer these embarrassingly basic questions.... :001_tongue:
I am going to give it a whirl in the next couple of days (once I finish a project on my van I am trying to wrap up) and see what happens. I'll try the stock carb first and if no-go, I can try a known good working Tec 5HP carb.
Two (basic) questions though, is this push-pull thingy on the front a compression release? It seems like it but the knob broke when I tried to push or pull it (the cable seems all stuck)
Also, there is this little yellow lever thingy I'm not sure what it is for....it goes in and out and makes a "chunk" sound when you move it but not sure what it is for?
I am assuming the red button is the shut off for the Bosch magneto but I sure wish I could find ANY kind of literature for this dang thing (I just have a kinda bad scan parts manual) . . ..even a basic operators manual would answer these embarrassingly basic questions.... :001_tongue:
What Size Carb was used on this 185?
Was the CR 8.0 or 8.5?
Thanks for all the great info! This is a very intriguing engine for us as we have never messed with 2-stroke engines before and this one seems amazingly well made. Parts availability and cost seems to be a major negative, but we will see if we even need anything.
The only thing keeping us from giving it a test run is the carb. It was really chalky on the outside and looks like it had been stored for quite a while with no air filter or covering on it. I took it off last night and put it in the ultrasonic cleaner for a few cycles with some simple green and it cleaned up real good. I also got the information off of it, the carb is a Tillotson HL63E with a manufacture code of 11/63.
I'm not sure if this was a replacement someone put on the engine later or if the engine is actually that old? I looked up the carb online and just found that it was used in these water pumps as well as a few 1959 models of McCulloch chain saws.
I would like to maybe rebuild the carb, just to be sure it is good working condition but I can't seem to find a rebuild kit anywhere for it. I can find ones for similar models but not an exact match, unfortunately. I might just put it on the engine as is, get some 2-cycle oil and (try) to start it up. :thumbsup:
Here are some pictures of the cleaned up carb:
The only thing keeping us from giving it a test run is the carb. It was really chalky on the outside and looks like it had been stored for quite a while with no air filter or covering on it. I took it off last night and put it in the ultrasonic cleaner for a few cycles with some simple green and it cleaned up real good. I also got the information off of it, the carb is a Tillotson HL63E with a manufacture code of 11/63.
I'm not sure if this was a replacement someone put on the engine later or if the engine is actually that old? I looked up the carb online and just found that it was used in these water pumps as well as a few 1959 models of McCulloch chain saws.
I would like to maybe rebuild the carb, just to be sure it is good working condition but I can't seem to find a rebuild kit anywhere for it. I can find ones for similar models but not an exact match, unfortunately. I might just put it on the engine as is, get some 2-cycle oil and (try) to start it up. :thumbsup:
Here are some pictures of the cleaned up carb: