125cc Carb Diaphragm Replacement - now rev problem

[MarauderGian]

Why bodge it? If you want it to run properly get the correct carb for the bike.

 

I am looking online for one right now but without any luck. I will try tomorrow at several bike breakers.

[JRH]

There seems to be a couple which may suit on EBay

http://www.ebay.co.uk/itm/Suzuki-GZ125-2004-carburettor-/272561879770?hash=item3f75f43ada:g:Wt0AAOSwfVpYqYGR

This has a crack in the top but could use yours.

http://www.ebay.co.uk/itm/suzuki-gz125-marauder-1998-2007-carb-carburettor-/272382363655?hash=item3f6b410807:g:Z2AAAOSwNRdX38Pi

Or a new one.

https://www.motorcyclespareparts.eu/suzuki-parts/motorcycles/gz125-marauder-2006/carburetor-457980.aspx

[Northern Biker]

There seems to be a couple which may suit on EBay

http://www.ebay.co.uk/itm/Suzuki-GZ125-2004-carburettor-/272561879770?hash=item3f75f43ada:g:Wt0AAOSwfVpYqYGR

This has a crack in the top but could use yours.

http://www.ebay.co.uk/itm/suzuki-gz125-marauder-1998-2007-carb-carburettor-/272382363655?hash=item3f6b410807:g:Z2AAAOSwNRdX38Pi

Or a new one.

https://www.motorcyclespareparts.eu/suzuki-parts/motorcycles/gz125-marauder-2006/carburetor-457980.aspx

Excellent google-fu [emoji106]

The one with a cracked top seems clean enough and unmolested, just swap it with yours as JRH suggested [emoji106]

[MarauderGian]

Hi, is the carb you got beyond repair or can you fix that hole where the mixture screw sits, I have been looking for a second hand one, and their as rare as hens teeth, here's the workshop manual, and I'll check again for the carb

https://www.dropbox.com/s/pjhga7bmb5fb8s1/Suzuki%20gs-gn-gz-dr125-manual-eng-copy.pdf?dl=1

 

Thank you for the manual!

Depends how are the passages in there, from what i can see i think it has a small hole in the center far end and another one on the side, 5mm up. If those are the only ones there i think i can give it i try. I was thinking about putting a mixture screw all the way in there with a coat of gresse on it, get some adhesive and fill the hole around it, let it settle and pray

But i don't know, if i can just put another 125 26mm carb on, i will just go to that route, i just want to ride and all i do with my time now is browsing trying to fix it

[MarauderGian]

There seems to be a couple which may suit on EBay

http://www.ebay.co.uk/itm/Suzuki-GZ125-2004-carburettor-/272561879770?hash=item3f75f43ada:g:Wt0AAOSwfVpYqYGR

This has a crack in the top but could use yours.

http://www.ebay.co.uk/itm/suzuki-gz125-marauder-1998-2007-carb-carburettor-/272382363655?hash=item3f6b410807:g:Z2AAAOSwNRdX38Pi

Or a new one.

https://www.motorcyclespareparts.eu/suzuki-parts/motorcycles/gz125-marauder-2006/carburetor-457980.aspx

 

Thank you!

[ThePhatomfart]

The 2 small holes could be right,the point at the end of the screw goes toward that hole ,it has a small washer and spring on it that sits on the shoulder inside, once inside the screw has a cap over the end (so its not interfered with)

[MarauderGian]

Update: I am waiting for a carb replacement (one from JRH links ). When i will get it i will tune it to factory settings (thanks again for the manual Spanner ) and i will post a clip with the bike running.

Thank you all for your support!

[ThePhatomfart]

Update: I am waiting for a carb replacement (one from JRH links ). When i will get it i will tune it to factory settings (thanks again for the manual Spanner ) and i will post a clip with the bike running.

Thank you all for your support!

Hi yes I noticed that one went, good post by JRH, hope everything goes well ,Best of Luck with it,

[JRH]

Update: I am waiting for a carb replacement (one from JRH links ). When i will get it i will tune it to factory settings (thanks again for the manual Spanner ) and i will post a clip with the bike running.

Thank you all for your support!

 

I deny all knowledge or responsibility.

[MarauderGian]

UPDATE:

I just recived and fitted the replacement carb and the bike runs great

The acceleration is improved like it's a different engine.

Thank you all for your input!

[JRH]

Well done a good result.

[ThePhatomfart]

Well done matey

[Mr Fro]

Quality result!

Good work team.

[Northern Biker]

Well done buddy, glad it's sorted. Now go enjoy it [emoji106]

[ryancarlwatson]

Just to add to this thread if anyone is interested. My bike used to rev high and it was related to the carb (I think it is a common problem).

Obviously check the obvious thing like throttle cable and idle screw setting but if you have ruled them out then it is likely a gummed up carb and or pilot mixture screw setting.

I cleaned mine with carb cleaner and air line and turned mixture screw counter clockwise slightly and it fixed it. I cannot say which contributed more to the solution but it is definitely the right area to focus on.