1974 JD 400 Project

[Cdnturboz]

Thanks for the reply! I ended up getting a Kimpex windshield that seems to fit good:



I’ll have to visit a local dealer and grab some screws then. All that’s left is repairing the seat and a few misc stuff - got it running pretty good and have taken the daughter out a few times already!


Thanks
Steve M

[Ajc]

The Kimpex windshields are better then the Sno-Stuff ones. I think Kimpex stopped making them so there getting hard to find.

[AirborneX4Special]

I agree on the Kimpex deal. Sure is a clean sled!

[Curlymurt]

I'm missing a bunch of those side cowling/panel screws - anyone know of a source to find them? Looking for ones that would look stock in appearance

I find a lot of nicer trim screws from the autopart stores. I tend to have better luck with AutoZone in my area. Granted, I don't really know what the OEM should look like

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[Cdnturboz]

Quick update on this thing - trying to get it ready for the vintage show/parade at CPTC out here in March.

Added new footwell grips/tape - found some stair tread tape that was wide enough and kept the yellow stripe for the JD theme.

Putting some new skegs on as well - a few last misc things and it should be ready to go.

[Cdnturboz]

Still having issues with the Walbro WDA, found a couple bendix carbs, might try rebuilding on of these new ones and giving it a try again. Not sure if I want to go with the mikuni swap

[400brian]

What Walbro are you working with, and what are your specific problems?

[Cdnturboz]

The WDA-32 which was off of a 73 400. It was fully rebuilt with an aftermarket rebuild kit. Used your advice on the salvaging Walbro carbs thread but still can’t get that bog gone.

It bogs real bad when at about mid range, almost when you go on and off the throttle.

As well the throttle is really hard to squeeze, like after 10 minutes of pulling the kids around it started to get hard to squeeze and almost sticks, been like this for a while now. I’m guessing something is binding.

I’ve tried a new throttle cable and no difference, I’m thinking it’s something at the throttle block- I had swapped the entire handle from a 75 300 when I first redid the sled (as it was nicer) thinking something must have been wrong with it.

[Cdnturboz]

Reason I went to the Walbro from the original bendix was I could never get it to idle right even after a full rebuild of the engine and using a nos carb rebuild kit.

Thinking something was wrong with the original bendix so I think I’ll try one of these other ones I just got

[400brian]

It would help if you could determine if the bog is because of lack of fuel, or too much.

[Cdnturboz]

Yeah that’s my plan to mess more with it this weekend - I’m going to try and fix the binding throttle first

[400brian]

Yes, absolutely get the throttle working correctly.

It may be possible to play with the choke to diagnose what is going on.

[Cdnturboz]

Took cable all off and lubed it with chain lube (that’s all I had) - seems 100% better than before. It was a new aftermarket cable, most likely my fault in forgetting to lube it the first time. Is there a better cable lube to use?

For the bog it seems to be in the mid range just before full throttle, full throttle is fine though. It seems to idle good, what’s a good idle RPM to set these at?

[400brian]

There is some personal preference involved. Obviously it has to be below clutch engagement!
I am thinking around 2000 rpm.

[jep_800]

Steve,

Just a curious question: where did you source the footboard grip tape? That's pretty cool and very functional. You must have put the yellow stripe in yourself? Yellow piping for the bumper and tunnel perhaps?

Jason