4-Stroke Conversion

[gearhead1937]

I'm about half way through my conversion (Honda clone). I've been taking pictures and will post a few when I get done. Here's the question... should I incorporate the rubber hockey pucks into the new motor plate? The old JLO shook so bad it cracked tho old one (welded up an fine now). I know the 4-stroke should run smoother, an turn fewer rpm's. Just looking for input. Thanks in advance.

[George]

I used them in the two conversions I did. I don't know if you need to but why not!

[lewis]

Attex - Amphibious ATV Pictures

I also used them on the Crush. I have a different setup for the motor. The setup i used needed the height to keep the chain from hitting the mount. As George said why not use them unless they are worn out.

[gearhead1937]

From my old racecar days we tried to get rid of everything rubber... motor mounts, tranny mount, steering nuckles, some suspensions bushings ect. Of course that was running 450+ hp instead of 14. I was planning on making mounts like in the picture, but my thought was to bolt the vertical plate solid to the frame and use the horizontal plate as the slider/adjuster. Is there a reason the factory used the vertical as the adjusters?

[Jeff t-boss]

When I converted my T-Boss, I eliminated the rubber mounts. As you said, the 4 stroke doesnt vibrate as much and doesn't rev as high. I have been running it 4 years now and havn't had a single problem.

[gearhead1937]

Conversion is done. The little 14 hp moves the machine pretty good. The camera is full of pictures and as soon as I read up on posting pictures I'll put some up. Sounds like I have a few bad axel bearings, I couldn't here them with the noisy two-stroke, now there pretty obvious. I guess I know what the next project is.

Figured out the picture thing... here are just a few

[gearhead1937]

Hey Mike, I just uploaded some photos and then realized ther was an option to make a photo album. I did a quick search and found a thead about moving pictures into a album after the fact. http://www.6x6world.com/forums/6x6-w...res-album.htmlIs this an option yet? Should I just reload them into an album and delete the individuals?

[lewis]

Nice work Gear.

[gearhead1937]

Thanks Lewis, I got in a hurry with the exhaust at the end. I plan on taking off the stock exhaust manifold and make a new pipe that will go under & behind the motor hooking up to the stock muffler. If I do that and cut off the extra stud off the air cleaner I believe I'll be able to run the stock motor cover. I just fabbed up this muffler quick to get the machine running.

[jcarson]

nice job,,im doin the same thing with mine.when i got it it had a old 440 polaris and man it flew,,crazy fast,,.i had a vangaurd vtwin 16 with a bad rod so i over hauled it,would you mind telling me what model clutch your running?are you useing the stock secondary do they work together like they should? i mainly want mine for just toodling around so i dont need the big two stroke,,thanks jared carson

[gearhead1937]

I was able to pick up a cheap IBC Powerbloc off eBay. Here is the thread that talks about the clutch. http://www.6x6world.com/forums/engin...ry-clutch.html So far it a smooth working clutch. I just left the original secondary clutch. The two seem to be playing well together. I can do a complete 360 on concrete with very little throtle. I haven't done any high speed turns to see if it will "downshift" properly. This is my first 6x6 and I am very happy with the four stroke. I've read that there is a magical 'Red' spring you can put in the secondary that works better for four stroke engines. It is $25ish from Richard's and I will probably get one when I do a complete tear down in the future. At least that is my plan. Good luck with your project and let me know if I can help.

[turvuren]

i've run into a problem with my china engine. The crankshaft with keyway installed measures .060 larger than the clutch. Any ideas?

[mark m.]

Tim, if you have a machinist friend he can make a step key.

[turvuren]

Thanks I was able to buy a step key and with a little sanding got it together.