Carb or Kick-down?

[100070192]

I have an 83 GS850G and I'm trying to figure out if I have a problem or a blessing in disguise. The issue is that my bike generally runs perfectly except for when you really get on the throttle something strange happens! Its almost like it kicks-down into a lower gear, or similar to a 4-barrel carb on a car, its like the other two carbs open up! It'll go from around 4-5000rpm up to over 8000rpm with a huge surge in power almost instantly. The gear indicator shows that I'm still in the same gear and once I let off the throttle it calms back down.

Does anybody know what I'm talking about? Does this bike run on 2 carbs and then only use the others when you really ask for it?

[Steve]

When everything is adjusted properly, the bike runs on all four carbs all the time.

The purpose of what we call a "carb sync" is to SYNChronize the carbs so they all open at the same time.
Sounds like that maintenance item is in your immediate future.

NOTE: before performing a carb sync, it is usually advisable to to a valve adjustment, especially if you can't remember when that was last done.
You don't have to do both items, but if you do, do the valves before the carbs.

.

[Pete Logan]

I think an 850 owner may well tell you this is normal for that bike.

My 750 is just the same. At 6,000rpm it lights up - feels almost like a turbo kicking in. Quite dramatic. Scared the heck out of me the first time I did it - WHOA - What The Heck Was That

[legaleli]

I have an 83 GS850G and I'm trying to figure out if I have a problem or a blessing in disguise. The issue is that my bike generally runs perfectly except for when you really get on the throttle something strange happens! Its almost like it kicks-down into a lower gear, or similar to a 4-barrel carb on a car, its like the other two carbs open up! It'll go from around 4-5000rpm up to over 8000rpm with a huge surge in power almost instantly. The gear indicator shows that I'm still in the same gear and once I let off the throttle it calms back down.

Does anybody know what I'm talking about? Does this bike run on 2 carbs and then only use the others when you really ask for it?

I have an 82 GS850G - I posted at some point a while ago that I felt like I owned TWO bikes... the bike up to 6000, and the bike after 6000. From 6000 to 9500 the bike is a monster right?!

[chef1366]

Is the clutch slipping?

[Dave8338]

850 power band?

[legaleli]

Is the clutch slipping?

Chef's question here hits home for me. My bike, before I fixed the issue, simply slipped as soon as it hit around 6000, because of the power.

[bwringer]

You gotta spin it, man.

My 850 spends a LOT of time above 6,000 rpm. The engine is made to do this.

I can't stand it when these old farts putt around on a GS below 4,000 rpm all the time.

I've been accused of making engine modifications on my 850 a couple of times. Nope -- I'm just two gears lower, using the powerband as Suzuki intended.

[Calvin Blackmore]

I think an 850 owner may well tell you this is normal for that bike.

My 750 is just the same. At 6,000rpm it lights up - feels almost like a turbo kicking in. Quite dramatic. Scared the heck out of me the first time I did it - WHOA - What The Heck Was That

my bike also has an insane accelaration in 3rd gear from 5k to redline
no other gear results in what is literally like a fourbarrel openbing up

it actually forces you back on the seat

[Octain]

Is the clutch slipping?

My first thought.
Mine climbs quick but it also goes faster. Before I "adjusted" the springs only the RPM would climb

[Johnny K]

82 850GZ here. Mods in my sig. Everytime I quickly throttle up or down, it quickly moves me forward or back. Absolutely love the sound when going through the gears and then letting off the throttle with no back firing. Music to my ears.