suzuki gz 125

poohbah68 · L Plate Warrior Joined: 15 Aug 2010 Karma :

slow on changing gears,looses power rapid up hills,have changed spark plug and oil filter,any suggestions welcome
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mart

N cee thirty · Banned Joined: 31 Jan 2010 Karma :

changed oil?

chain tension?

valve clearances?

they all alright,also maybe tyre pressures before you start digging in to the engine
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'00 Aprilia RS50 > '92 Honda CG > '99 Yamaha Fazer > '91 Yamaha RXS > '79 Suzuki X5 > 01' Honda Cg > 07' Honda Cg > 82' Kawasaki Z200 > suzuki gsxr 400 gk73a > honda vfr 400 NC30 Mod 2 Passed 09/06/2011

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cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

clogged up air filter

radical · Spanner Monkey Joined: 02 Jul 2010 Karma :

Is there any oil in the bike or could the oil be very low.

The Original Muzza · World Chat Champion Joined: 09 Jan 2009 Karma :

What sort of power loss you getting up hills? I'm lucky to get over 55 on a medium gradient in 4th gear and getting there is not easy either. It's just not a powerful bike.

As for the gears, has it been sitting a while? A change of oil should see improvements as it did when I had gammy gear changes on mine.

If after oil change it's still noticeably less powerful than before, try cleaning out the carbs/injectors as well. Luckily quite a simple bike to fiddle with, unless all your screws etc are rounded off/seized. Evil or Very Mad

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Current Bikes: Husqvarna Svartpilen 401 (2020)
Former Bikes: Honda MSX125 (2014), BMW Funduro (1996), Honda VT500 (1983), Yamaha FZR250 (1989), Suzuki GZ125 Marauder(2005),:Triumph TT600 (2002) (stolen)
From then on, I and the bicycle feelings deeper.

poohbah68 · L Plate Warrior Joined: 15 Aug 2010 Karma :

was sitting for 2 week, thought it might need a good run when i got back, it dwindles down to Rolling Eyes

8mph up hills,so il try everything on your replies, thanks
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mart

The Original Muzza · World Chat Champion Joined: 09 Jan 2009 Karma :

poohbah68 · L Plate Warrior Joined: 15 Aug 2010 Karma :

all fixed thats guys for your help Surprised

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mart

N cee thirty · Banned Joined: 31 Jan 2010 Karma :

poohbah68 · L Plate Warrior Joined: 15 Aug 2010 Karma :

too much oil went into the air filter moving from level road to a hill,never make that mistake again ,carb needed a good clean as lots of crap in there,the chain had too much tension.

anyways i was helping my sister move and found an old maintenance manual and instruction book for the unapproachable Norton models 16H,big 4, 18 & ES2 it cost 1 shilling was wondering what year it was, also there was a motor cyclists workshop by torrens of the motorcycle 1947 there a bit tatty but all the pages are there
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mart

alexknight200... · Crazy Courier Joined: 05 May 2012 Karma :

Hi,

How often do you change your air filter. Mine was last changed march 2009.

Also can you just clean it rather than replace it Question

Alex
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Current stable: Yamaha XVS 650 1996 - Honda Super Magna VF750 1988.

The Artist · Super Spammer Joined: 06 Jan 2008 Karma :

alexknight200... · Crazy Courier Joined: 05 May 2012 Karma :

Hi Sorry,

I was searching the forums to see of the topic had already been covered but could only find this Embarassed

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Current stable: Yamaha XVS 650 1996 - Honda Super Magna VF750 1988.

cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

yes just soak it in oil and give it a squeeze. and replace

Instructions for this are in the owners manual