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Unread 08-16-2013, 08:55 PM   #1
Chase0808
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MC 2150 problems

I just got the mc2150 and the carb is great but I'm having some issues. I start it by pumping the pedal once, then starting it. Once it is started, I have to keep my foot on the gas to raise the idle, or it will stall. Once it is completely warmed up it runs great. This only happens when starting from cold.

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Unread 08-16-2013, 09:40 PM   #2
rambo3489
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You have to set the high idle. I do it by pressing my foot to the floor and pulling the choke all the way in. But I have a manual choke on mine. Not sure how it works with an electric choke which is likely what you have on it. But someone will chime in on this.
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Unread 08-17-2013, 07:10 AM   #3
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The choke setting and high idle setting is on the inboard side of the carb. You need to set your high idle between 1200-1500. Once you set that, you'll be good to go.

Do you have the adjustment instructions?
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Unread 08-17-2013, 08:30 AM   #4
Chase0808
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I know where it is but I can't seem to find instructions on adjustments. I bought it from the eBay guy and have the file if the installation but didn't see anything about the high idle.
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Unread 08-17-2013, 09:10 AM   #5
Rproject
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OK. Let me find it when I get home this afternoon. Doing some trail maintenance this morning.
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Unread 08-24-2013, 11:11 PM   #6
ReDinTX
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Did you find the instructions? I have same issue.

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Unread 08-24-2013, 11:17 PM   #7
Chase0808
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Quote:
Originally Posted by ReDinTX
Did you find the instructions? I have same issue.

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I just replaced all the vacuum lines and that seemed to do the trick. I still need to change my manifold gasket which causes a little bit of a rough idle. I suggest starting by replacing all vacuum lines.

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Unread 08-25-2013, 08:11 AM   #8
ReDinTX
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Will do. While im at it, can I remove some of the emissions vac lines? I guess, what all is REQUIRED to have vacuum?

Vac canister
brakes
axle motor
heater
carb
dizzy

what else?
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Unread 08-25-2013, 08:54 AM   #9
Chase0808
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I've heard that you can just run off of 2 vacuum Lina but I've never tried. Mine is and 88 and no longer needs to pass emissions so I'll let you know if I try it out.

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Unread 11-24-2013, 11:06 AM   #10
ReDinTX
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Quote:
Originally Posted by Chase0808 View Post
I've heard that you can just run off of 2 vacuum Lina but I've never tried. Mine is and 88 and no longer needs to pass emissions so I'll let you know if I try it out.

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any luck?
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Unread 11-24-2013, 11:40 AM   #11
Chase0808
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I didn't end up trying it but I'm really considering a fuel injection swap. The only thing holding me back is the fact that the kit costs $1200. I've heard nothing but good about them so that's what I'm going to try. It's the Howell fuel injection kit if you're interested.

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Unread 11-25-2013, 07:53 AM   #12
Old4X
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Quote:
Originally Posted by ReDinTX View Post
Will do. While im at it, can I remove some of the emissions vac lines? I guess, what all is REQUIRED to have vacuum?

Vac canister
brakes
axle motor
heater
carb
dizzy

what else?

Also need the evap canister, PCV, and EGR system
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Unread 11-28-2013, 12:32 PM   #13
krazybob
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Quote:
Originally Posted by Chase0808 View Post
I've heard that you can just run off of 2 vacuum Lina but I've never tried. Mine is and 88 and no longer needs to pass emissions so I'll let you know if I try it out.

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Never heard anything about an '88 model not having to pass emissions. is that a standard law everywhere, or just your state ? I'd love to delete all the emission stuff if possible. My county in my state of Idaho, does not require any Smog tests, but other counties do, and if I decided to sell my '88, it may limit me to where I could sell it. Maybe I'd better check my Idaho laws :-)
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Unread 11-28-2013, 02:17 PM   #14
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Quote:
Originally Posted by krazybob View Post

Never heard anything about an '88 model not having to pass emissions. is that a standard law everywhere, or just your state ? I'd love to delete all the emission stuff if possible. My county in my state of Idaho, does not require any Smog tests, but other counties do, and if I decided to sell my '88, it may limit me to where I could sell it. Maybe I'd better check my Idaho laws :-)
Emissions testing is very much dictated by age and location. If we lived 3 miles east, our '95 would have needed to be tested. In IL, our '87 is considered too old and doesn't need to be tested anywhere in the state.
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