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Post by trashman36 on Mar 1, 2020 0:19:08 GMT
Can someone point me in the direction where to find a mounting flange. I have everything else needed. Just want to try one old rotax with a mikuni.
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Post by bones on Mar 1, 2020 3:41:18 GMT
What size Mikuni are you trying to use ??
Bones
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Post by trashman36 on Mar 1, 2020 3:43:27 GMT
Sorry I guess that would help 32mm
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Post by bones on Mar 1, 2020 13:42:24 GMT
You can use a adapter that is made for the Elan 80 - 96. It really is made for a 28 mm carb but will work for the 30/34 carb. They are readily available from the jobbers, many of them jobber adapters are not very durable, I have one that has been is service for about 5 years, so not too bad I guess. Some got to a place that sells genuine Mikuni adapters to buy them, I would think you would have to go by bolt spacing with them to get proper fit.
Bones
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Post by bones on Mar 1, 2020 14:35:54 GMT
Trashman, in the one lunger help desk section.....There is a thread "299 with Mikuni", some good discussion there.
Bones
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Post by trashman36 on Mar 1, 2020 19:18:47 GMT
Thanks bones I appreciate the direction.
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Post by 69nordic on Oct 10, 2020 3:49:10 GMT
The genuine Mikuni Adaptors work very well.The proper one for 32 is alot better than the Elan one.
John
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Post by dando127 on Oct 10, 2020 5:07:39 GMT
John.......if you can.....can you put up a link to the one you used???
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Post by olyman on Oct 10, 2020 13:46:41 GMT
A long time ago I responded to an ad for a mikuni carb for an elan. Turned out it was a 34mm butterfly mikuni but it still had the boot attached to it. So i brought it home. Couldn't make the carb work on anything (still have it) but the flange ended up fitting my 299 perfectly. Its genuine and says "VM 34 - 200" on it. Here's a link to some pics I took of it. |
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Post by olyman on Oct 15, 2020 19:25:10 GMT
 So an HR stud pattern is 2 1/4", or 57.15 mm center to center. The "VM34-200 34mm" has 60 mm c-c. Though not perfect, that's a pretty good fit. Even with mine you can see a little bump on either side from the stud nuts in the picture. Use as small of washers as possible or modify some to fit properly. Here's a link to an example on Ebay. remember a 30 -34 has the same size of spigot so this adapter will work on all of them. VM34-200
Also found this one (not Ebay), if you wanted to mount something smaller like the Elan carb (28 mm). A little further down you can see what sleds used this style. 28 mm carb adapter |
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Post by dando127 on Oct 15, 2020 21:10:04 GMT
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Post by olyman on Oct 16, 2020 1:13:09 GMT
For sure. The "I-VM34-200-1" looks to be about the same as what I posted above, and looks like it also might be genuine. Note that they even recommend supporting the carb to help eliminate stress on the flange. Bones was also a good advocate for that - I too should follow the advice. Good advice since pretty much any single cyl rotax sometimes creates vibrations once in a while.. I-VM34-200-1 |
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Post by bones on Oct 16, 2020 2:37:28 GMT
Good catch on some of them adapters guys, some of them I did not know existed.
VM34-200-1 style..... I found when attempting to use a flange some what like that on a single, the carb wanted to dribble fuel out the over flows at idle. They were ok above idle. I found I had to use a adapter with a longer section of rubber to stop the over flow at idle. Then, yes a support was more important.
Bones
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