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07-07-2008
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 Carb Tuning So I have a 1987 250r and it will not Idle. The idle screw does a tiny bit like 200 rpms but as soon as it idles 2-3 seconds it stalls out. Any ideas. I had the carb off and sprayed out the jet part of the idle and it flows ok.      |
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07-08-2008
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| you need to go to a differ size of pilot jet, try one bigger and one smaller, What size do you have in there right now?
__________________ 1986 Honda Trx 250r Hot Rods +4 Stroker Crank V-Force Reeds Fmf Fatty Pipe and Silencer Keihin PWK 39 Carb Laeger +2 A Arms Wiseco Piston 67.50 Dynatek Fs Ignition 1985 Honda CR 125R Dg Type 2 Silencer Fmf Power Reeds Hot Rods Crank Why make power half the time with a 4-stroke when you could make it all the time with a 2-stroke? |
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07-08-2008
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| yea the pilot jet is probably to lean. how does it act when you blip the throttle?
__________________ 86' honda 250R woods bike fresh motor as of sept. 9th 08' esr trx 5 pipe and silencer 38mm air stryker carb stock cyl. with 68mm wiseco piston (86') cr thin head gasket 180psi compression (stock head) 88' hot rods stock crank with spacer plate vforce 3 reed valve 01 cr250 ignition system +4 axle 13/38 gearing durablue lowering strut maier front and rear fenders |
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07-09-2008
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| It hesitates below half throttle. I am new to this carb tuning thing so I don't know if it is lean or not. This got worse after installing the rad valve with pro series reeds. Should I try going up first? |
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07-09-2008
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| yes go up one size on the pilot jet, then up one again, and if nothing changes then you are prolly to rich, hows it run with the choke on??? does it run good down low with the choke on??? if it does then ur lean, if it gets wors then your rich.
__________________ 1986 Honda Trx 250r Hot Rods +4 Stroker Crank V-Force Reeds Fmf Fatty Pipe and Silencer Keihin PWK 39 Carb Laeger +2 A Arms Wiseco Piston 67.50 Dynatek Fs Ignition 1985 Honda CR 125R Dg Type 2 Silencer Fmf Power Reeds Hot Rods Crank Why make power half the time with a 4-stroke when you could make it all the time with a 2-stroke? |
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07-09-2008
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| Not really much change when the choke is pulled as far as I remember. I am not sure though. Will try to check when I get home. |
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07-09-2008
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 what pilot do you have in right now... that would help alot
__________________ 1986 Honda Trx 250r Hot Rods +4 Stroker Crank V-Force Reeds Fmf Fatty Pipe and Silencer Keihin PWK 39 Carb Laeger +2 A Arms Wiseco Piston 67.50 Dynatek Fs Ignition 1985 Honda CR 125R Dg Type 2 Silencer Fmf Power Reeds Hot Rods Crank Why make power half the time with a 4-stroke when you could make it all the time with a 2-stroke? |
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07-09-2008
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| I ran it at idle with the choke and it makes it a little worse, I didn't drive it though. I have the intake snorkel off and there is a little air/fuel mixture spitting back out of the carb at idle and 1/4. Is this normal? Are my new reeds not sealing enough? If it is normal I'll pull out the pilot jet and see what size. |
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07-09-2008
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| its to rich, and yes im pretty sure thats normal that its leaking a bit, not positive though
__________________ 1986 Honda Trx 250r Hot Rods +4 Stroker Crank V-Force Reeds Fmf Fatty Pipe and Silencer Keihin PWK 39 Carb Laeger +2 A Arms Wiseco Piston 67.50 Dynatek Fs Ignition 1985 Honda CR 125R Dg Type 2 Silencer Fmf Power Reeds Hot Rods Crank Why make power half the time with a 4-stroke when you could make it all the time with a 2-stroke? |
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07-10-2008
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| Ok I'll try to pull the pilot today. Should I drop 2 sizes or just one? Thank you for your help so far. |
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