Suzuki Inazuma GW250

Main Inazuma GW250 Boards => Modifications and Appearance => Topic started by: billabong on July 17, 2019, 10:52:36 AM

Title: fittting 15t front sprocket
Post by: billabong on July 17, 2019, 10:52:36 AM
i just received my 15t sprocket for Ali......need to know the torque settings for the smaller nut which does the speedo count and also the bigger nut which secures the sprocket........thanks
Title: Re: fittting 15t front sprocket
Post by: Robell on July 17, 2019, 07:03:05 PM
Front sprocket nut is 120Nm
Speed sensor rotor bolt  is 23Nm
Speed sensor bracket bolt 10Nm
Title: Re: fittting 15t front sprocket
Post by: billabong on July 17, 2019, 08:50:48 PM
excellent............ta very much...get job done next couple of days.... :002:
Title: Re: fittting 15t front sprocket
Post by: Ottawa on August 14, 2019, 07:11:59 PM
I am considering doing this to my 2017.

Which one did you buy from Ali?

Was there any issue installing? Specifically, was there any issue with the chain length?
Title: Re: fittting 15t front sprocket
Post by: billabong on August 14, 2019, 09:30:34 PM
i bought 15t one from ALI.......easily fitted...no other mods...chain length was unaffected....you need a 30mm socket for the sprocket nut.....straightforward and it makes first gear usable
Title: Re: fittting 15t front sprocket
Post by: grumpy on August 15, 2019, 09:41:39 AM
*Originally Posted by Ottawa [+]
I am considering doing this to my 2017.

Which one did you buy from Ali?

Was there any issue installing? Specifically, was there any issue with the chain length?

I've bought 2 15t sprockets over the years, both times the sprocket came from Sanbornes at AliExpress  https://www.aliexpress.com/item/32328758783.html?spm=a2g0s.9042311.0.0.398c4c4diKpBPM (https://www.aliexpress.com/item/32328758783.html?spm=a2g0s.9042311.0.0.398c4c4diKpBPM)  never had a problem with delivery and a good quality part, HTH.
Title: Re: fittting 15t front sprocket
Post by: Ottawa on August 16, 2019, 01:55:04 AM
If you don’t mind me asking, how many KMs on your bike? How often do you go through the front sprocket?
Title: Re: fittting 15t front sprocket
Post by: xris_xcess on August 16, 2019, 03:17:22 AM
*Originally Posted by billabong [+]
i bought 15t one from ALI.......easily fitted...no other mods...chain length was unaffected....you need a 30mm socket for the sprocket nut.....straightforward and it makes first gear usable

No issues??? What method did you use to get that bugger of a 30mm nut off?

I had to resort to some clever locking of the rear wheel to be able to lean completely on my breaker bar... :052:

I changed mine at about 8k... now at 30k... I see minimal wear. I do mostly highway thou, so very few gear changes, either up or down.

I am considering doing this to my 2017.

There is a 2017 zuma!!! damm... not down here  :005:
Title: Re: fittting 15t front sprocket
Post by: Ottawa on August 16, 2019, 10:43:30 AM
*Originally Posted by xris_xcess [+]
No issues??? What method did you use to get that bugger of a 30mm nut off?

I had to resort to some clever locking of the rear wheel to be able to lean completely on my breaker bar... :052:

I changed mine at about 8k... now at 30k... I see minimal wear. I do mostly highway thou, so very few gear changes, either up or down.
 
There is a 2017 zuma!!! damm... not down here  :005:


I order my sprocket the other day. I work super semi-occasionally at a car dealer, one of the techs said he would help me avec an air gun.

It was sold in Canada as a GW250. Mine is a 2017 but purchased it brand new in April 2019.

Over 30k, any major maintenance you have done? Have you been following along with the maintenance schedule?
Title: Re: fittting 15t front sprocket
Post by: grumpy on August 16, 2019, 10:50:14 AM
*Originally Posted by Ottawa [+]
If you don’t mind me asking, how many KMs on your bike? How often do you go through the front sprocket?

In total I've done just over 11,000 miles (17,500 kms?). I fitted the first 15t sprocket at less than 2,000 miles (3,000 kms) because I wasn't happy with the low first gear. I've just fitted (less than 1,000 miles/1,600kms) the second 15t sprocket because the chain was knackered and didn't want to run a new chain on old sprockets, although the old ones both looked in good shape...the rear sprocket was still the original.
Title: Re: fittting 15t front sprocket
Post by: Robell on August 19, 2019, 04:51:21 PM
I've changed the front sprocket twice, but never the rear.

Front's always wear faster, and while it's usually recommended to change both sprockets and the chain as a set, I haven't found it necessary.
Title: Re: fittting 15t front sprocket
Post by: onazoomerF on August 20, 2019, 03:02:05 PM
So, when I see this subject, I wonder what the specs are.

Like does the front sprocket have any lateral play, i.e. needs a "filler" washer to prevent "wobble"?

Since you've changed it a few times, did you notice that the higher number of teeth is best,

or were all yours the same number of teeth?
Title: Re: fittting 15t front sprocket
Post by: Robell on August 20, 2019, 08:29:05 PM
The first 15T sprocket I bought from JT, needed spacing, as it wasn't designed for the Inazuma
The second came from China and was direct fit and had the rubber insert fitted, like the original

I find the 15T is a far better option than the original  :002:
Title: Re: fittting 15t front sprocket
Post by: onazoomerF on August 22, 2019, 11:55:25 AM
Thanks for this reply. I still may get my hands dirty by getting a bigger sprocket.
Title: Re: fittting 15t front sprocket
Post by: xris_xcess on August 22, 2019, 04:11:59 PM
*Originally Posted by Ottawa [+]

I order my sprocket the other day. I work super semi-occasionally at a car dealer, one of the techs said he would help me avec an air gun.

It was sold in Canada as a GW250. Mine is a 2017 but purchased it brand new in April 2019.

Over 30k, any major maintenance you have done? Have you been following along with the maintenance schedule?

Follow the manual, no exceptions,
-Oil change every 5k km. New oil filter every 5k km (hiflo - great deal on ebay for a 3 pack).
-Valve clearance adjustment. Had to adjust twice. Makes a noticeble improvement on idle.
-Swapped factory chain at 15k km. kinked links. rather low milage. Installed DID zvmx x-ring (overkill... but massive discount on amazon.uk for last unit!)
-K&N air filter. Got a good bump in top end power 9k rpm (but... see next point)
-Recently changed fuel strainer (some call it the filter, before fuel pump in the tank). Was having two issues: Stalling when running low on fuel (one bar flashing), but still plenty to for another 40km. Also slight loss of power at top end (9k, 10k rpm). Was not dirty... but the inner material (black) seems to have "swollen" and was seriously restricting flow. Got a OEM equivalent replacement on Aliexpress.
I have removed the fuel assembly twice, and cleaned thorougly with carb cleaner. Seems to restore a bit of top end power. Debating if its the strainer, filter or pump. I also have to check/clean injectors just to be sure.

At some point I would like to hook it up to a SDS system (suzuki computer gadget, reads parameters off the bike computer, can do some special mantainance with it). Just to check there is nothing too "off". But not sure how much that would cost (you can buy one on ebay for about $200us). Local dealer should have one. Just a thought...

Overall I am 1000% pleased with this bike. Couldnt ask for more. First bike. Could have gone for a new, but smaller bike (150cc, 200cc), but I think I would have suffered on the long highway rides. Its been a workhorse, racking up kms like crazy. Solid, powerfull enough, easy to handle, overall cheaper parts/repairs (if you shop around...)

Hope I can hit such a good bike when I decide to upgrade :305: