03-19-2018, 10:18 PM | #1 |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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Rhino Help
Just installed a Mikuni vm26 on my rhino and it’s idling super high.I ordered jets too the main jets are here but not the pilots so I didn’t mess with them I just installed it as is,is that my problem or is there an adjustment I need to make?
Thanks for any input guys |
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03-19-2018, 11:40 PM | #2 |
Join Date: Feb 2009
Location: Michigan
Posts: 1,035
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Check the cap where the cable goes in. A few of us here have changed over to find that the cap on the new carb seats the end of the cable a little higher. This causes the slide inside the carb to not bottom out. Using the cap from the old carb usually fixes the issue.
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2012 Kawasaki Versys 1984 Honda Magna V65 2016 Rhino 250 2016 Tao Tao 125D |
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03-20-2018, 06:43 AM | #3 |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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I actually used the stock cap,spring and needle assembly.And that was my next question,do I need to use the Mikuni spring and needle? I pretty much put the Mikuni on and slid the stock cap,needle and spring right in.Should I set the Mikuni needle on middle notch and at least use the needle and spring?
Thanks again... |
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03-20-2018, 04:12 PM | #4 |
Join Date: Apr 2016
Location: MD
Posts: 558
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I don't think the needle and slide are the same on the two different brand of carburetors.
I would use the Mikuni needle and slide.... if the needle won't go down low enough into the jet it will act like you are giving it throttle. This is probably the high idle you are seeing. |
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03-20-2018, 04:35 PM | #5 |
Join Date: Mar 2017
Posts: 43
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I just made this modification (VM-26). I used the stock cap but used the Mikuni needle and slide. Had to increase the idle actually. I did change the jets though...50 pilot and 115 primary.
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03-20-2018, 05:12 PM | #7 |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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I do have a pack of main jets including 115 but my pilot jets haven’t arrived yet,but I’m going to go change over the needle and slides now and will post how it goes after...Thanks guys
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03-20-2018, 08:10 PM | #8 |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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Ok much better now with Mikuni needle and slide but still little high,I tried adjusting the idle with the screw on the bottom and yeah went too much and it fell out and I can’t find it,so now since it still idles higher than I want,so do I do the jets to make it right?Do I need to replace that screw I lost?Also I have main jets but should I just wait for my pilot jets too before I mess with it again?
Thanks guys...I hate to be a pain but I’m still a newbie. |
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03-20-2018, 11:23 PM | #9 |
Join Date: Feb 2009
Location: Michigan
Posts: 1,035
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Yep, you need the screw as it's not the idle adjustment. It's the mixture screw. The idle adjustment is on the side.
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2012 Kawasaki Versys 1984 Honda Magna V65 2016 Rhino 250 2016 Tao Tao 125D |
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03-21-2018, 06:47 AM | #10 |
Join Date: Apr 2016
Location: MD
Posts: 558
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It could be your twisting the throttle cable when you screw the cap back on. If that happens it will act like throttle up. Forgot about that one when I posted yesterday.
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03-21-2018, 07:20 AM | #11 | |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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Quote:
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03-21-2018, 04:11 PM | #12 |
Join Date: Apr 2016
Location: MD
Posts: 558
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I wouldn't run without the mixture screw. If the balance of air to fuel (lean/rich) is off enough it could damage the engine.
Yeah try holding the throttle cable while you put the top back in. It may or may not help in this case... but at least be mindful of it. It is a part of the troubleshooting process. |
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03-21-2018, 04:44 PM | #13 |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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Ok thanks,I’m gonna just leave it be for now until my jets and pilot screw arrive I believe Monday then I’ll try and get it all done,hopefully you guys will continue to help me when I run into a stink.
Well,I guess until Monday all I can say is Thanks Darth,Goldstryker,and David for the help.Im probably gonna need a bit more Monday,but we’ll see. Again;I appreciate all the help guys. |
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03-24-2018, 08:42 PM | #14 |
Join Date: Jan 2018
Location: Illinois Indiana border
Posts: 120
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Okay so I only got a # 30 pilot jet and an assortment of mains so I went with the 115 main and 30 pilot and replaced the mixture screw.Its just about right but maybe just a little rich.My question is should I change the 115 up or down?I have up to 125 and down to looks like 88.Should I leave the main at 115 and maybe put the stock Mikuni pilot back in or shoul I just play with the mixture screw on the bottom?I have the idle screw turned out more than halfway probably. Any suggestions?
Thanks for the help again in advance. Hey all in all though,the front wheels are damn near popping off the ground from first gear take off and it still has stock sprockets and chain. I like. |
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03-24-2018, 11:16 PM | #15 |
Join Date: Feb 2009
Location: Michigan
Posts: 1,035
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Typically, the base starting point for both the isle and mixing should be around 2 turns out. The main size starting point is based on elevation. Also, it's best to place the C-clip on the jet needle to the middle (usually 3rd) notch.
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2012 Kawasaki Versys 1984 Honda Magna V65 2016 Rhino 250 2016 Tao Tao 125D |
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