Re: Showroom query

Thank you. There was this idea that Test-Drive vehicles were not being sold.

Re: Showroom query

Oh! yes, now I remember reading about the same....discussions were going on in page 18xx I think.

Re: Showroom query

[MENTION=36366]SparKot[/MENTION] I am going to check for the points you mentioned earlier in the thread for the problem of bike engine dying at idle.

Meanwhile I was also looking for steps for GS150R full DC conversion. Excellent step-by-step procedure found in OP thanks to @gmagesh14.
All credits to him, I have made a pdf with his photos for those of you who want to go for DC conversion.

Please find the pdf here: GS150R FULL DC Conversion Steps with Pics

Re: Showroom query

You can ask a moderator to add this link as a compilation of Magesh's work, an easy single download.

Edit: I've a copy in PPT(15.5 MB) too, I guess Magesh shared it with us.

Re: Showroom query

Added link to the first post of this thread.

This can't be true

Hello All, Came across this page while browsing the web. I'm not an expert at all, but is it even 1% correct what the user "GAGAN" has posted in the link below? I think the guy is nuts, or am I missing something?

What are gear shift speeds for powerful acceleration?

Suzuki GS150R Mileage problem

Hi to all techies...

I have recently (4 months back) purchased a used GS150R (2009 model) which was 17000 Km driven by first owner. Everything seems to be perfect in that bike except mileage, what I have observed is, I get only 30 Kmpl against 45-50 kmpl which is claimed by SVC guys and other fellow guys owning same bike.

I have asked SVC guys and they did some carbon cleaning from exhaust and assured me that I will get some increase in mileage. But unfortunately it proved wrong .

In a second visit and upon my complaining they did carburetor cleaning and tuned it for mileage but still nothing has changed

Do any of you techies know what should be done in order to solve this ?

(I would not mind answering your questions if you need to understand this more in details)

Thanks in advance...

(to moderator: pardon me if I have re-posted this)

Re: Carb screw jammed


Further to all my above answers, I took bike to SVC as I didnt get time to actually look into the issue. They tuned carburettor (AFR screw was tuned too) with a machine (something with a pipe that goes into silencer normally found in PUC centers). This was used to measure CO, HC etc and tune AFR screw accordingly.
My observations after above mentioned tuning.
1) Engine feels very smooth. I used to feel little hesitance in 3k rpm range. That is gone now. The reason for that I suspect is point 2 below.
2) When I accelerate hard with bike on main stand, rpm drops to about 4k quiet fast(which looks normal) but rpm drops very slowly from 4k onwards. I will soon upload a video of this. I remember reading some one report the same issue quiet recently on this same forum. I will try to search about it.
3) Haven't measured mileage yet. Will report about it soon.
4) Sometimes when I stop on road rpm keeps running high as if I have pulled the choke even though I actually haven't.
5) The original problem of bike engine dying at low rpm still persists. Point 4 happens rarely.

Another update about 3.5k rpm vibration due to resonance. I saw that Gixxer comes with a rubber washer to its silencer. So I have ordered a pair of those. Currently I am using pulsar washers by cutting it as shown in your post earlier. No vibs at all at 3.5k.

Re: Carb screw jammed

I presume SVC personnel did it @ idle rpm, Engine didn't stall during the whole process?
What were readings on the exhaust gas analyser? HC, CO, CO₂ etc

Oh, yes RPM needle fluctuates ever so lightly during idling; that's normal. Choke seems to be alright. Clutch even when disengaged or in neutral transfer negligible amount of power to constant mesh tranny.

You might want to change engine-oil and esp spark-plug(NGK-CPR7HSA). Spark plug's surface erodes over time, however insignificant.


Can we take it as a sign for a leak around inlet, the rubber flange between carburettor & inlet?

I remember someone suggesting to spray water on/around inlet using a hand-spray and observe RPMs. If there is a leak around inlet RPMs would fall due to moisture in AFR.

And something worth watching:

Re: Carb screw jammed

Another thing I remembered, I had posted here about the bike swaying to right. In the last service I got the front fork oil changed. Now the swaying to right is still there but considerably less. SVC guy mentioned the springs were gone. So next servicing I am going to replace that too. Can you suggest a good quality fork oil? The last time they used some local brand "Platina" fork oil.

BTW nice find of that video. I wanted to understand how actually the gear shift works. I had known how gear shifts on a bicycle and I used to wonder definitely bike wouldn't have such simple mechanism. I know I would sound silly with that statement

Re: Carb screw jammed

I used Motul 20w Fork-Oil, it was cheap too for a 350ml bottle. Note: 145 ml for each fork.
Blog - Suzuki GS150R Fork Oil Change

First month after replacement it wasn't that impressive; now it is superb. I'm still stuck with cone-set replacement/replenishment; just sleeping on it for few months now!!!

There are other oils discussed over here: http://www.xbhp.com/talkies/universa...fork-oils.html

Springs are gone!, call it a mechanic's hunch based on experience or a wild guess. I leave that to you to decide.

However, as per service-manual ---- Fork Spring Free Length : 438.1 mm
Nevertheless, I'm not sure if length alone should be used to validate spring condition. Some kind of load testing(say 20 kg) should give out a better picture.
We are not born with knowledge, we pick it up along the way. I forget a lot, if that is any lead for comebacks.

Re: Suzuki GS150R

Guys I need some help... Can I use ordinary grease for brake caliper will it case any serious damage ?

Sent from my XT1033 using xBhp Connect mobile app

Re: Suzuki GS150R

Yes, normal grease(dino oil based - petroleum extract) will degrade rubber quality over time & make it useless. More than that, normal grease melts & flow out of rubber boot since calliper heats up pretty quick during day-to-day riding.



Look for Silicone based grease or get some Caliper-Grease sachets from Maruti-Suzuki authorised spares distributor.

Re: Suzuki GS150R

I tried for caliper grease but no where I could find all are saying you can use all purpose grease and wheel bearing grease for the job

Sent from my XT1033 using xBhp Connect mobile app

Re: This can't be true

You are right, he is nuts. He is confusing this engine that generates torque at low RPM with something that needs considerable revving and generates power at very high RPM. Riding till 39kmph in 1st gear is daydream and a dangerous one at that, both for engine as well as the rider.