Question about 1996 Suzuki GSX-R 750 T

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Hello i have a 01 gsxr 750 and it does not seem to fire on 1&2

Hello i have a 01 gsxr 750 and it does not seem to be firing on # 1&2 cylinders but fires on three and four and as i raise the rpms nuber two seems to come back to life but not number one any help would be great thanks

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  • johnnixon17 Jun 16, 2009

    swaped coils same result instaleed new plugs i can hold my hand over the throttle bodies of 1&2 and the bike will stay running but if i put hand over 3&4 the bike dies is this a intake gasket leak?or maybe a cdi problem?

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You have two coils on the bike. I would start by checking the coil for the non working cylinders. Trace the spark plug wires back to the coil from cylinders 1 & 2.

Posted on Jun 16, 2009

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Have a 78 gs 750, new points, condensors, plugs, plug caps, swapped coils from another gs, and still cylinders 2 &3 are not as hot to the touch as 1&4. Compression checked at acceptable values...


Does the 2 & 3 cylinders have any oil smear on the plugs.? please pull off all the plugs and check the performance. Check the gaps in the plugs. now since you did compression check , I would advice to have the firing of the 2 & 3 plugs with the plug attached checked.
Now correct if the gaps are down or reduce slighly if the intensity is no so good.
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check and comment
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1 Answer

My old suzuki 250 gsxr - j is only working on two cylinder.


Hi and welcome to FixYa,

If the cylinders that wont fire are 1 & 4 or 2 & 3, then it would be an electrical/ignition problem. Check the ignition coil, wiring, connectors, CDI and pulser coil. On the other hand, if the cylinders that won't fire are 1 & 2 or 3 & 4, then it would be a carb issue. Determine if fuel is reaching and filling the bowls of the carbs by loosening the drain screws of each card. Note the amount and quality of fuel. Alternately, a carb pulldown, cleaning, soaking maybe required.

The red speed light would lit up on 80 KPH is normal. This is prescribed by Japanese law since presumably your bike is a JDM (Japan Domestic Model). If no restrictors are installed, then either remove the bulb or ignore it.

Good luck and thank you for asking FixYa.

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The coil is probably breaking down internally when the heat rises. The only other possibility is the electronic ignition going bad. Have a dealer check the bike before spending bucks on a new coil when the old one may actually be good.

Please rate this solution. Thanks! :)

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