First Kart Manco 845

[qtband]

I use those Honda engines from pressure washers all the time. I fabricate an exhaust from 90 degree plumbing pipe and put a straight $7 muffler on it. This way nothing blows on the seat. If you're interested, I may have pics.

 

[itsid]

I'd like some pics please...

'sid

 

[firemanjim]

I use those Honda engines from pressure washers all the time. I fabricate an exhaust from 90 degree plumbing pipe and put a straight $7 muffler on it. This way nothing blows on the seat. If you're interested, I may have pics.

The Hondas dont have internal threads like a BnS to screw a pipe nipple into. It bolts on with a 2 bolt flange.

 

[qtband]

I ground down a pipe nipple to fit inside the exhaust port, just like the original muffler. Then I welded the nipple to a large washer and drilled 2 holes for mounting. The rest was just screwing on elbows and such. I've done it a few times now. Works well.
The pics were for the seat, but you can see what I did.

 

[Boongoon]

Great point. Do you have any idea on the overall speed difference between the 5hp 160cc Honda and a HF 6.5 212?

 

[qtband]

They both govern at 3600 rpm, so they have the same speed. The 6.5 may have a little more torque.

 

[OzFab]

The 6.5 may have a little more torque.

... until the Honda gets a few tweaks. My GX160 has buckets of torque...

 

[zbuck]

I ground down a pipe nipple to fit inside the exhaust port, just like the original muffler. Then I welded the nipple to a large washer and drilled 2 holes for mounting. The rest was just screwing on elbows and such. I've done it a few times now. Works well.
The pics were for the seat, but you can see what I did.

All my Gx's have D shaped exhaust ports. So with a round pipe nipple I think there would be a some exhaust restriction/reverberation.

 

[Boongoon]

I have to check, its at a friends house, but i think it's a GC160 not GX. Whats the difference?

 

[qtband]

The port on the engines used for the power washers with the exhaust facing forward have a round outlet for the muffler.

 

[Boongoon]

So without any welding experience, how would one fabricate the new exhaust? BTW, it is near impossible to get any welding training here in NJ. The times that the Vo-Tech has classes are impossible, i emailed all supply houses without a single reply. I emailed a couple folks on Craigslist to see if they could train with no response. Im usually a "trial and error" kind of guy, but everything i read says the only way to start to learn to weld is to be properly taught.

 

[OzFab]

the only way to start to learn to weld is to be properly taught.

True but, being properly taught doesn't mean you need someone looking over your shoulder...

MIG welding is so simple you can be self taught with a few pointers; TIG, on the other hand, does require some professional training.

There are lots of guys here who are self taught MIG welders & they seem to do ok compared to the PO's of some of the karts we see...

 

[Boongoon]

Here is the crankshaft from the honda. I imagine i just take out the set screw and remove the geared part on the shaft, but isn's the shaft too short?

 

[landuse]

You should be able to get a clutch on there

 

[Boongoon]

Ill try it it tonight. Does anyone know of stock aftermarket exhaust for this? I mentioned in a post that i don't know how to weld, although that is the next adventure.

 

[qtband]

What is your location?

 

[Boongoon]

Montgomery, NJ

 

[rocketkart]

that looks like a handa gc engine i ran them on gokarts befor thay do have a short shaft but it worked for me i hade to make a exhaust to go out the side cus the stock one was right behind the seat

 

[Boongoon]

So i decided on The Predator engine. A couple reasons. It's brand new! I don't want to take the time to fabricate the exhaust at this point. Looking to install sometime next week and ill let you all know the progress.

One question, the Tecumseh i have on there allows for the lights to operate. Im pretty sure the predator will not, true?

I thinking of just hooking them up to a battery since the light currently only work when the engine is on and the brightness always fluctuates with the throttle.

Thoughts?

 

[qtband]

The Predator does not have a lighting coil so no 12v source from there. If you really want lights, use LED lights. They use less power and your battery will last longer, too.