Runaway Manco Dingo IX

[panchothedog]

Pull the driver off of the crankshaft. It's going to be shorter ( more inbound ) then the outside of the driver clutch and closer to the plain of the driven. You also might have to look long and hard and do what is called " Dead Reconing." Trusting your eyes that you are centered. You do Not want to hold the ruler or tape on an angle. That will give you a bogus demention.

 

[Hondasher]

Pull the driver off of the crankshaft. It's going to be shorter ( more inbound ) then the outside of the driver clutch and closer to the plain of the driven. You also might have to look long and hard and do what is called " Dead Reconing." Trusting your eyes that you are centered. You do Not want to hold the ruler or tape on an angle. That will give you a bogus demention.

Okay, I will do that tomorrow and find out the precise measurement between both centers.

 

[panchothedog]

Ordered a comet belt for it, it'll be here next week can't wait to rip it around more. I saw on YouTube other people putting performance carbs on their go karts and I would like to do the same, I believe from the research I did, I need a PWK 34 carburetor correct me if I'm wrong, anyone have suggestions for a cheap carb to put on my motor?

I think we've taken the belt purchase about as far as we can go.
34 mm carburaters are normally pretty pricey. There are cheaper ways to gain more performance. Plus without a lot of modifications, A 34 is going to be way overkill. I don't know anything about a Vanguard engine in particular, but the one picture you posted from what I can see, it looks a lot like a mid sized clone engine. 270cc to 301cc. Do you know the displacement ( size ) of it?

 

[Hondasher]

I think we've taken the belt purchase about as far as we can go.
34 mm carburaters are normally pretty pricey. There are cheaper ways to gain more performance. Plus without a lot of modifications, A 34 is going to be way overkill. I don't know anything about a Vanguard engine in particular, but the one picture you posted from what I can see, it looks a lot like a mid sized clone engine. 270cc to 301cc. Do you know the displacement ( size ) of it?

It's a Briggs and Stratton Vanguard 9HP Engine, supposedly it's displacement is 350cc from what I was told. Edit: According to some paperwork from B&S I just found it's 297cc displacement.

My main goal for swapping the carb out is to have better throttle control and a more accurate running machine, I had to add a spring to keep the throttle from staying open as it's very loose and seems to be missing the return spring as far as I can tell. I was looking at 34MM due to searching for 350cc Carburetors on Amazon and that's just what it pulled up, which is why I wanted to ask here first to find out which carb, cause there's a cheap $35 carb I can get on there to put on it.

 

[panchothedog]

Not knowing the outside diameter of your carburater, there are tons of hop up kits for big blocks clone engines. They consist of a free flowing air filter and an adapter that bolts to the end of your carburater ( to which the new air filter is clamped to ). A header pipe to replace the stock exhaust system ( please buy a muffler, these things are loud as hell without one ), and a larger main fuel get for the carburetor. It lets the engine breathe a lot easier, hence it needs more gas to run properly. Usually these are called a stage 1 hop up kit and can add anywhere from 15% to 25% power gain. Briggs might have it's own parts, but from the looks of yours it sure looks similar to everything else. Don't know about Amazon, but most of the go kart supply shops will show the dementions of the carb adapter so you can figure out if it will fit.

 

[Hondasher]

Not knowing the outside diameter of your carburater, there are tons of hop up kits for big blocks clone engines. They consist of a free flowing air filter and an adapter that bolts to the end of your carburater ( to which the new air filter is clamped to ). A header pipe to replace the stock exhaust system ( please buy a muffler, these things are loud as hell without one ), and a larger main fuel get for the carburetor. It lets the engine breathe a lot easier, hence it needs more gas to run properly. Usually these are called a stage 1 hop up kit and can add anywhere from 15% to 25% power gain. Briggs might have it's own parts, but from the looks of yours it sure looks similar to everything else. Don't know about Amazon, but most of the go kart supply shops will show the dementions of the carb adapter so you can figure out if it will fit.

The throttle side port of the carb is 24mm, I'm not sure of the choke size, I'll have to measure that tomorrow.

I happen to have a muffler on another lawnmower type engine that would sure quiet it down, I'm going to measure the manifold and see if it will fit on the engine or not.

 

[Edwin Spangler]

For reference, mine here, with these measurements, takes a 203 785 that measures 32.9 inches.

A 203 786 will work, not well. It will be loose and engage at a higher RPM and engage very hard, very bouncy like.

Hope this clears it up.

 

[Hondasher]

Okay so life has kept me pretty busy haven't been able to do much work on the kart, anyways I want to swap the carb to a Performance carb or just any old top throttle carb that will work for it and maybe you all can help me with choosing a carb that will work on it, it does not need to increase the performance over the old one. The intake port on the engine measures 24MM and the choke side of the carburtor the inner diameter measures about 28.5MM. A carb I bought for a mini bike at one point I was thinking might work for it has almost the same size intake port and choke side port as the old carb, it was meant for a 150cc motor according to Amazon, would that work or can someone point me in the direction of a carb that will work?

 

[panchothedog]

If they are within a few mm's of each other, and the mounting holes match, and you have or can fabricate a good gasket that won't leak air, you should be good to go.

 

[Hondasher]

If they are within a few mm's of each other, and the mounting holes match, and you have or can fabricate a good gasket that won't leak air, you should be good to go.

Okay thank you, what my plan is since there is an O Ring on the carburetor is to butt that up against a plastic carburetor plate that has an O Ring on the otherside against the engine, or just use the gasket on the other side that sits against the engine head I'll figure that out tomorrow. The holes do line up I just have to make or find a couple of studs to bolt the carb onto that are shorter.

 

[XTK Man Co]

I just picked up this Manco Dingo IX yesterday for $150 which to me is a heck of a price, I was told it was leaking from the carb, I found out the fuel line hose clamp is stretched out and it's leaking from the carburetor fuel inlet line. I fixed the leaking issue after rebuilding and cleaning the carburetor out. Now it runs which is great, but had my 6x6 not been in front of it, I'd have had to go chase the kart down it wanted to go, not overly fast but fast enough and with enough power I couldn't pull it back easily if at all. I want to say it's an issue with the throttle the throttle does work, but it seems to idle too high, even with the idle screw backed out completely it still idles higher than it should in my opinion. I believe I hooked the throttle back up completely, however the throttle on the carb seems to swing back and forth easy and is held open a good bit due to the spring on the throttle arm. I'll enclose pictures to show what I mean, also the governor spring or at least what I believe is the governor spring rests on the engine. Any help is appreciated, I want to get riding this kart soon as possible.

View attachment 154281

View attachment 154282View attachment 154283

Issues with the governor can often be due to Fuel delivery. If you want to save $ take the carburetor off and clean clean clean. I found through trial and error That this worked for a 212 clone engine I have, but found a new Carburetor for $10 so I will replace it soon. Hope that helps.

 

[Hondasher]

It's Alive! New PZ20 Carburetor works on it, got a new throttle cable on it as well and a different exhaust and it runs and drives good. Needs more fuel to air mixture though so I think I'll need to swap the jet for a larger one. Got it up to 24MPH. Not sure if that's it's top speed it'll go with someone who weighs 270lbs 6' 2" I think it probably will soon as the fuel issue is corrected.

 

[Hellion]

Check your air filter. Those are basically street air filters and are too porous for off-road, sand or dirt. I'd use a factory air cleaner assembly or something more hardy, possibly a better cone filter with one of those fabric socks on the outside or some kind of pre-filter.

 

[Hondasher]

Check your air filter. Those are basically street air filters and are too porous for off-road, sand or dirt. I'd use a factory air cleaner assembly or something more hardy, possibly a better cone filter with one of those fabric socks on the outside or some kind of pre-filter.

Do you have a link to any suggestions that I can look at to get an idea for one to put on it? I'm still sure I need a bigger jet.

Also, because it'll start up and idle fine, but I have to give it a small press on the gas first.

 

[Hellion]

PZ20 Carburetor

Since that is what you have, see what's available for the carburetor. If your Gewgle-Fu turns up nothing, measure the O.D. (outside diameter) of the place where the current filter mounts to and then search for filters with an ID the same as that OD.

 

[Hondasher]

Since that is what you have, see what's available for the carburetor. If your Gewgle-Fu turns up nothing, measure the O.D. (outside diameter) of the place where the current filter mounts to and then search for filters with an ID the same as that OD.

It's a generic carb, also I know there are different filters with different pore sizes and such, I've used this type for years didn't know it's meant for the street.

 

[Hellion]

You can look through the filter, hold it up to the sun. The filter material (on most that I have seen) is a very loose and thin foam with wide pores. Yours may be different though, but it looks very similar to the ones I have seen. Very thin foam sandwiched between two steel mesh layers--it keeps the flies out...

 

[Mancofan]

I just picked up this Manco Dingo IX yesterday for $150 which to me is a heck of a price, I was told it was leaking from the carb, I found out the fuel line hose clamp is stretched out and it's leaking from the carburetor fuel inlet line. I fixed the leaking issue after rebuilding and cleaning the carburetor out. Now it runs which is great, but had my 6x6 not been in front of it, I'd have had to go chase the kart down it wanted to go, not overly fast but fast enough and with enough power I couldn't pull it back easily if at all. I want to say it's an issue with the throttle the throttle does work, but it seems to idle too high, even with the idle screw backed out completely it still idles higher than it should in my opinion. I believe I hooked the throttle back up completely, however the throttle on the carb seems to swing back and forth easy and is held open a good bit due to the spring on the throttle arm. I'll enclose pictures to show what I mean, also the governor spring or at least what I believe is the governor spring rests on the engine. Any help is appreciated, I want to get riding this kart soon as possible.

View attachment 154281

View attachment 154282View attachment 154283

I had/have same kart i had the same problem and issue was the throttle cable jumped outta the place it’s supposed to rest i wrapped some electrical tape around the black plastic cover for air box i think I’ll look tomm

 

[Mancofan]

I'm familiar with that model. Have 2 myself.
Has a 40 series torque converter on it. Almost bullet proof. Might need a teardown, clean and replace.

 

[Hondasher]

I had/have same kart i had the same problem and issue was the throttle cable jumped outta the place it’s supposed to rest i wrapped some electrical tape around the black plastic cover for air box i think I’ll look tomm

My throttle cable wasn't out of place, but I just switched the carb to a PZ20 and it works fine, maybe not getting enough gas I need to find the jets that came with it and go up a size or two on jet size, or just up the needle more. But otherwise it's quite fun and responsive with the new carb on there.