Exhaust question on GC160 engines

[Rapidrob]

Honda make a vertical cylinder OHC engines such as the GC160 5 HP, 5.2 HP and 6 HP. These engines exhaust out of the right hand side of the engine. If used on a mini bike, the exhaust is blowing forward towards the handle bars.
Is/are there aftermarket exhaust pipes that redirect the exhaust to the rear of the mini bike?
Thank you.

 

[Bill Ellerby]

Never seen one, but I'm sure you'll have to make your own custom exhaust. Might want to make one similiar to a motorcycle exhaust. Curve it down and under the frame and put a RLV muffler on it?

 

[trailhopper]

Owen made one.

Message - Old Mini Bikes Photo Gallery

 

[Sinner70]

there are no aftermarket performance parts for this engine. I have 2 of em. I made up the exhaust from "black pipe" and wrapped it in Header wrap. came out ok. Use the search option, I know some guys have made up some really nice headers for the GC series.
The late, great Yellow Hand did and awesome job on one of these GC's, check it out.

 

[Rapidrob]

Thank you for the info. How would you rate the engine on a mini bike?

 

[Sinner70]

i have it on a Grand Prix. its the 6hp model. Lots of torque, starts one pull, very reliable (like honda's in general) and pulls great.

the cons: have to fab an exhaust, throttle hook up has to be made, and the engine can be Tall for some frames. Other than that, great engine, i really like them. I think they are under-rated in the minibike world.

 

[Rapidrob]

Thank you for your reply. I have one coming off of ebay. Can you provide a photo of your throttle hook-up!

 

[Sinner70]

i'll take one tonight and post if i can.

 

[Square_Chopper]

Owen made one.

Message - Old Mini Bikes Photo Gallery

Actually, my old man made that one and we traded it to Owen for a 2hp briggs when we were at Windber.

Traded Owen that one because Hent was selling this one at the OldMiniBikes tent.... But I do believe it may have been a one of a kind....:shrug:

 

[Sinner70]

heres mine. just some black pipe, elbow fittings, and header wrap. not pretty, but looks good on the rat rod bike.

 

[owend]

Honda GC engine

Actually Jake the one that we traded went on the" Old Dirty Bastard" and Neck made the flange for the one on My Manco. I am pleased with my GC 160 engines and the exhaust does help out some.

 

[Stangrcr1]

Here is the exhaust I made for a go kart with the GC160 Most of the pipe and muffler came from a chinese mini quad.

 

[Big Jim]

I am going to use a GC on my Trail Ram.
What did you guys use for a header flange? I have an RLV for a clone but the port is centered on th GC's.
Any messing with the jet? I have a filter and header planned.

 

[Neck]

I started with a 7/8 washer, then drilled the holes and sanded it till it looked OK.

 

[Big Jim]

Thanks Neck!
Looks nice, love that Briggs shroud!

Any throttle issues with just a header?

 

[chazdaddy]

Hello Stangrcr1,

Does your GC160 have factory remote throttle, or is that something you rigged up? :shrug:

Also, very cool looking pipe! :thumbsup:

 

[Stangrcr1]

It was set up for a pressure washer and had the wrong setup. I did rig something up while waiting for the correct throttle assembly to show up.

The remote throttle bracket is Honda part number 16500-ZL8-800. It is now on the kart, but I don't have a pic of it.

It has the clamp for the cable housing but does not have the clamp for the cable itself. I used a spare clamp and E-clip from a DB. The bracket also retains the throttle controlled kill switch, but I removed it and ran separate wires to a kill switch by the steering wheel.

Also, the exhaust flange is the same one that was on the 110cc chinese quad. Did have to cut it off and turn it so I could better route the exhaust.

 

[Neck]

No, no throttle issues. I hooked the cable straight to the top of the governor lever.

 

[jeep2003]

i welded a pipe right on the muffler. looped around and kicked it out at the back . and made a shield out of an old stainless pool ladder. the throttle was tricky had to make a drop down bracket that bolts on with the valve cover

 

[stargazer7467]

here mine, i just ordered an exhasut pipe for a random mower out of the Primeline book at Oreilly. Tack welded it to the stock muffler till i can find a flange...