are engine valve adjustments needed?

[antix875]

I've got a 95 katana 750 with 49k. it was running rough and only getting 20 miles or less to the gallon. I put factory needles in the carbs and it smoothed out but I'm still hurting with fuel economy. would having the valves checked help the fuel issue?

[92xjunker]

Some, yes. but, you have carbs issues.

[antix875]

Air screw out of adjustment or wrong jets?

[Kreylyn]

Air screw out of adjustment or wrong jets?

Well there is large list of possible issues, but... the short of it... a full disassembly, cleaning, inspection, and repair is needed on the carbs.

You would need to verify the emulsion tubes are not out of round, the float needles are seating/sealing, and not damaged. All orings are round, not flattened, broken, cracked... Additional inspection of the slides, diaphrams, and so on. Once a full cleaning and repair on them are done, a vacuum leak test, fuel leak test, and then once running... carb sync will be needed.

As for what needs replaced, well... that's what the inspection process is for.

Krey

[antix875]

Is there an upgrade kit to where I can switch to fuel injection?

[MotorBikeMike]

Is there an upgrade kit to where I can switch to fuel injection?

Doubt it.....even if there was, the bike isn't worth the cost to do it. More fuss then needed. Plus.....carbs are simple and reliable. Just have to fuss with them every 20,000kms or so. I just run seaform in the gas every 5th tank or so. Never any issues with mine

[shpielers]

Is there an upgrade kit to where I can switch to fuel injection?

It's been done, but neither cheap not easy. Megasquirt is what I've seen people use. Definitely not a drop in kit though.

[ZookRick]

At 49k miles you definatly need to do a valve adjustment. Might have something to do with the rough running. Hopefully you dont have any burnt valves.