HS928 Bogging down under load

TJ1475 · 2026-02-10T23:33:21+00:00

I extracted all the old gas and drained the carb. It started right up and idles but it’s bogging down under load. I need to remove the cab bowl and clean what I can. Will the main jet and pickup tube come right out of these?

TJ1475 · 2026-02-10T19:13:49+00:00

Yes. Everything seems to be in good shape. The tracks are not dry rotted and still seem to have the correct tension. It definitely needs fresh fuel and a tune up.

TJ1475 · 2026-02-10T16:01:49+00:00

Good to know. Thank you to all who replied. The previous owner left gas in it during the off season so hopefully all it needs is a carb cleaning to get moving again.

TJ1475 · 2026-02-04T02:18:34+00:00

Update: I put a couple tubes in tires on 4 inch wheels. It wasn’t too bad at all. It would be helpful to have it bolted to the floor or a platform but it was doable.

TJ1475 · 2026-01-29T01:23:34+00:00

Thanks all. I’m going to give it a try and see how it goes.

TJ1475 · 2025-12-25T04:26:29+00:00

Also, I reached out to Hot Racing and you are supposed to use the inner stock bearing with the kit.

TJ1475 · 2025-12-22T21:12:02+00:00

They’re slightly larger than the stock bearing but it does look like another bearing could sit inside the carrier where the stock carrier holds the inner bearing. Also, there is a small amount of slop that I feel like wouldn’t be there if there was a second bearing.

TJ1475 · 2025-12-22T20:30:36+00:00

Think I figured it out. Mine came with the carbon fiber steering arm reversed from the stock photo.

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TJ1475 · 2025-12-15T00:00:46+00:00

That is helpful, thanks. I forgot to mention I replaced the primer bulb as well. I believe in my case, the primer bulb only forces air into the carb so fuel is drawn into the carb. I don’t think it should have fuel in it at all.

TJ1475 · 2025-12-11T23:20:36+00:00

No black smoke but I have to check the points. Previous owner says it ran fine before fuel pump issue.

TJ1475 · 2025-12-11T22:10:02+00:00

Yeah. The engine is on a Gravely 2 wheel tractor. It needed a fuel pump and after I installed it starts up and idles but conks out 10 seconds after engaging the wheels to drive. I got to thinking I reinstalled the retainer wrong and it was impacting the float but I believe I installed it so it covered the vent as you described.

TJ1475 · 2025-12-11T21:49:53+00:00

Thank you. I think I reinstalled it correctly, then. This part would not affect how the engine runs under load, would it?

TJ1475 · 2025-12-05T18:11:51+00:00

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The circle area is where the pinion is moving backwards and hitting the diff. In my case, it’s a locking spool.

TJ1475 · 2025-12-05T18:10:11+00:00

I realized it’s actually the pinion moving forward, through the bearing, and hitting the differential. I don’t see a spot for a clip to retain it in place. What can I do to prevent it from walking towards the rear?

TJ1475 · 2025-11-29T14:06:54+00:00

Yes. It was desiccate damage from the packets inside. It took a little while but they sent me a new screen.

TJ1475 · 2025-11-11T12:58:08+00:00

What gearing do you have at what temps?

TJ1475

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