Lunchbox and Jetting, Quick questions!

[Jayke]

Gets worse when it's hotter too. Just tried to pull off from trafic lights and it was like chug chug chug. I thought it was gonna stall then the revs shot right up to like 5k. Grrrr. Don't know what's wrong!

It also doesn't like starting. It'll just hover at 300-500 revs and stall. Unless I rev up to like 4k then it idles fine. This is whilst hot by the way!

Sent from my C6903 using Tapatalk

[radodrill]

It just splutters like the problem I had before. Hesitates like hell before 3.5k then is fine after 4k. The revs rise really well after 4k though and the acceleration feels better. 50-70 was a breeze which not so much before.

It's mainly when Ive been riding then stop at traffic lights. Tends to do it then. Does that mean I need to go more turns on the screw or less? Counterclockwise = more turns and clockwise = less right?

Hesitation is typically lean.

On the mixture screws; it's a right hand thread.  Lightly seat it (turning clockwise when looking at the bottom of the carbs) then unscrew it X turns out from seated.  So more turns is further out.

[Jayke]

Give me a little bit. I'll put my drift hd on and video it for you. It may not be hesitation as I dont know the proper terms for it. But it's definitely worse now with these jets pre 3.5k. Mid range to top end is great up to 70. Way too windy to try anything more while feeling safe

Sent from my C6903 using Tapatalk

[The Buddha]

So I've changed the mid mains to 65s and the pilots to 22.5s and adjusted the needles too, first thing I've noticed after riding it is that the pre 3.5k revs is absolutely horrible now. Splutters like hell until I reach 4k then it's fine.

I think I might have been right in my thinking that my pilot was too rich. It's muuuuuch worse than when I had my 20 pilots in. Any advice? Currently at 3.5 turns too. Gonna try 4 just incase

Sent from my C6903 using Tapatalk

Rich rich rich ... OK this is the basic symptom read.

Problems when you are opening the throttle are usually rich. Problems at steady throttle are typically lean.

The problems with being rich usually get worse with increasing ambient temperature. The problems being of lean get better with increasing ambient temerature.

Rich problems typically show up only when the bike is warmed up - they usually dont show up when cold. Lean problems are bad when cold, and dont improve much when warmed up, but they can sometimes improve enough for you to notice.

Anyway I suspect the 22.5 is too rich, but try turning the air screw in if you want to adjust it via air screw instead of the 20's.

Cool.
Buddha.

[Jayke]

So for example if I try like 2 or 2.5 turns it could run better? I was about to try 4.5 turns as with 4 turns it still did it.

What ya think?

Thanks for the reply :p

Sent from my C6903 using Tapatalk

[The Buddha]

So for example if I try like 2 or 2.5 turns it could run better? I was about to try 4.5 turns as with 4 turns it still did it.

What ya think?

Thanks for the reply :p

Sent from my C6903 using Tapatalk

It could ... but pilots control 0-1/8th throttle. Air screws are at idle to 2k.
If it does run better ... well, make sure you're not rich as you are taking off ... that's where you use pilots.
Cool.
Buddha.

[Jayke]

Will try it out. Gonna record it so you guys can see exactly what it is! Going  out now to record it!

Sent from my C6903 using Tapatalk

[Crasm]

Its all trial and error dude . Ive kept with the 20 pilot but altered the air screw alot trying different positions.
Ive noted that 2 turns and 2.5 turns out is very lean ,3 turns out lean , 3.5 turns out perfect , 4 turns and  4.5 turns out rich.
My needle and mids seam perfect but im still tempted to try a 150 main . . .

Well thats if i dont part ex it for a gsxr 600 after ive put it through mot . . .

I miss having power soooo much !!

The gs is better than its ever been but im missing the power of a supersports so it might be going to make way for one

[Jayke]

Yeah I'm all about getting it right now, so so close! Gonna go back to the 20 and then use the mixture screw to fine tune to what I feel is best.

On a more important note. When I did my bike the other day I noticed that the top engine cover - the one at the very top of the engine actually has a small leak and there was some oil there.... Think the gasket has broken down. Going to send it in this coming week to get the valves done since I don't have the shim tools and such.

After that,  gonna hee her dyno'd and assessed to see if all is well.

Looking forward to doing it! If you happen to know anything I can use to do the shims properly cheaper than sending it in that'd be great. Sad I haven't got a 3d printer as I could print the tools off!!!

And nice crasm, I think I need to mature as a rider a little before I get more power. The gs is alot for me right now! ride safe man!

Sent from my C6903 using Tapatalk

[radodrill]

Looking forward to doing it! If you happen to know anything I can use to do the shims properly cheaper than sending it in that'd be great. Sad I haven't got a 3d printer as I could print the tools off!!!

The valve shim removal tool isn't that expensive; the labor cost for having the shims adjusted would probably cover the tool and a shim kit.  when it comes time for mine to be adjusted, I'm just gonna buy the kit and do it myself.

[Jayke]

I guess. The tool on eBay is £25 shipped. That's like 40$ then I would have to buy the shims and the gaskets.

As for the shims I'd have to find out which I needed I think cause the only kit I see is like £100. Not sure for the gasket prices. Will have to get some prices I guess! See which is best

Sent from my C6903 using Tapatalk

[The Buddha]

We used to have a kit floating around. The guy that had it got arrested or something.

Anyway in the US valve adj work @ a dealer, minimum 300 bones.
They charge you 200 of that to look at it.

Cool.
Buddha.

[Crasm]

I dont no what the exhange rate is but ive been quoted £120 plus parts to have it looked at and
Adjusted here in the uk. On the plus side a friend of mine is a head tech for harley davidson uk
And has checked mine over and all is apparently well so im all good .
Think im going to have a play cosmetically. Starting with taking the grey decals with gs500 off the rear side fairings and possibly replacing them with the suzuki relentless decals and maybe a small street fighter style screen and then maybe a belly pan and rear hugger .
Also after 14 months of standard crappy mirrors im goin to change them for somethin that i can actually see behind me instead of just seeing my shoulders and a bit of sky just above them. And i think ill look into improving front forks as ive desided the rear is good enough for me just not happy with how bad the front dives .

Just shows i genuinly like this bike and i want to improve it  even though my head is screaming at me to sell it . . .

Only time will tell

[Janx101]

Not sayin naked bike is bad... I've had mine that way.... I do know with stock fairing and mirrors mounted on it... I don't have shoulder/elbow view ... They adjust real easy to actually see behind me

One 'advantage' I guess! 

[Jayke]

I have massive shoulders and I only see a little bit of my shoulders with the mirrors,  that's strange

Looks like I'll be doing the valves myself I guess, gonna save me a hell alot of money.

As for cosmetic mods I've thought about the belly pan, just wouldnt know where to get one that'd fit to be honest. Gonna get some renthal ultra low bars too and some hand windguards probably.

And hey crasm, maybe you could just have a gixxer or an r6 as a sunny day toy but the gs as a commute, that's what I'll probably do but with a drz400/crf450 and a r6 or something

Sent from my C6903 using Tapatalk

[Crasm]

Found a belly pan on a random google search from a company for 65 quid and it comes in carbon or various other colours.

Wished i had the money to run 2 bikes a car a house and a mrs and 2 young kids lol

Thats y i was thinkin of sellin the gs for a gixxer 6 . . . I dnt no im in 2 minds about it and it dont help that i genuinly like this little gs 

[Janx101]

GS is gonna cost less to run than the gix!!!

[Crasm]

Running costs dont bother me mate 

[BockinBboy]

I picked up a shim kit and tool for $55 on here awhile back...
needed a new digital caliper -12$
feeler gauges - 8$

= $75 total

was quoted $235 to do it at the local dealer... which is pretty cheap from what I understand...

But, I did save money, I have the stuff to do it again other than a gasket I'll get for next time, and of course the satisfaction of having done it and knowing it was done correctly.

- Bboy

[Jayke]

Hiya guys,  been a while, had a new phone and forgot to install tapatalk (oops!).

Ended up getting my valves done by a shop near me,  aparrently two were way way out and the other two were off,  but not half as much as the others.

That sorted out one of the ticking sounds that it had.  Just stuck with the last quite loud ticking sound.  Sounds like it's coming from the right side engine case more so than the left, originally I thought it might be a spark plug tick so I went and put some higher grade fuel in to see if it was the problem.  I thought it fixed it at first, then the tick came back the next day!

Other than that, I went back to the 20 pilot which made it much better(pre 4k) but it still chugs and struggles a bit,  gonna try the 17.5pilot as it seems too rich there still,  even at 3turns on the 20.

One other thing I did notice is after 8k revs it seems to take forever/have no pull I guess you could say. Not sure what it is now I've had the valves done.  The fastest I could get would be I'd say 87-89mph indicate,  this is with no headwind,  flat surface and laying on the tank.

Ps :with the valves now done,  I accidentally felt the front end lift a tad when pulling off swiftly. Never did that before!  Must be getting there!