'96 R850R engine sputters from low revs especially when cold

desertrider2 · May 6, 2015

Before being warmed up the engine often sputters going from idle or near idle to higher revs. My solution so far is to very gradually roll the throttle open. But, this problem is one I did not have with my previous 1999 R1100RT Boxer engine, so I'm wondering if there is a fuel delivery problem, or?

willhawks · May 23, 2015

sputtering R850 engine

First try the cheap fix. Run a couple of bottles of Sea Foam or Techron through the tank and see how it runs.

When was the last time you changed the fuel filter?

Best of luck

Will

roger 04 rt · May 23, 2015

desertrider2 said:
Before being warmed up the engine often sputters going from idle or near idle to higher revs. My solution so far is to very gradually roll the throttle open. But, this problem is one I did not have with my previous 1999 R1100RT Boxer engine, so I'm wondering if there is a fuel delivery problem, or?

Does it idle smoothly, cruise at 40-60 mph okay? If it does here are a couple possibilities.

--how are the plugs and plug wires, is there a strong spark

--when was the last time pump, in-tank hoses and fuel filter were changed. You can check them without opening the tank by measuring the volume of fuel returning to the tank at idle. It should be two liters per minute.

--are you coding plug, intake and exhaust standard? Any fueling enhancements.

dieselyoda · May 24, 2015

Spark Plugs..............You can spend a lot of money, time and stress before you take care of the simplest things first.

kjeppesen · Oct 18, 2020

I just had this issue with 2001 R1100R. Cleaning throttle bodies. Replacement of fuel filter and cleaning of tank whilst in “there” did the trick.

'96 R850R engine sputters from low revs especially when cold

desertrider2

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