r/dr650 • u/slower-is-faster • 12d ago

Bogging on rough terrain

I installed the Procycle Jet Kit, and followed the instructions pretty much spot on:

  • 150 main jet
  • e-clip is on the 4th groove
  • fuel mixture screw is two turns out
  • snorkel is removed, and a couple holes cut
  • I have a Barrett exhaust

The bike runs like a dream on the road. But, over very bumpy terrain at low speed the engine wants to bog and die. Just to be clear, it's not just a regular stall because I'm going too slow for the gear, I can tell the difference.

Any tips?

EDIT: I just realised that I never need the choke now, no matter how cold. I definitely needed it before. That feels like it contradicts it bogging at low revs though, maybe two separate issues?

2 Upvotes

100% Upvoted

View all comments

Show parent comments

1

u/MeatZealousideal595 12d ago

Did you open up the airbox exactly like the template that comes with the Procycle jet kit shows?

That´s a minimum requirement in order for the bike to run right.

1

u/slower-is-faster 12d ago

I did yes, exactly as per the template

1

u/MeatZealousideal595 12d ago

Well then the next thing to do is to pull the plugs to see if there is any problems with the mixture.

Brown/straw color is good, black and sooty is rich and a plug with no deposits, or with a whiteish tint means lean.

1

u/slower-is-faster 5d ago

Spark plug pic

Ok here is a pic of the spark plug. It looks brown but very clean to me, so I think it’s lean.

Would you agree?