May 10th, 2020, 10:56 PM | #1 |
ninjette.org member
Name: Garry
Location: Bungendore Australia
Join Date: Jan 2019 Motorcycle(s): GPX250 1989 model and 1990 model Posts: 98
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KZ188 Muffler
My 1989 GPX250 is fitted with KZ169 mufflers as standard. I have acquired a set of KZ188 mufflers in really good condition. They look identical. Does anyone know what they would be off and if they are suitable to use as replacements.
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Perpetua Culpa Alterna Vagus |
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May 10th, 2020, 11:33 PM | #2 |
ninjette.org certified postwhore
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot.
MOTY - 2018, MOTM - Nov '17
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Critical dimensions of mufflers should be compared:
- ID of inlet - ID of outlet - length of canister Then compare to OEM GPX250 muffler. |
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May 14th, 2020, 03:30 PM | #3 |
ninjette.org member
Name: Garry
Location: Bungendore Australia
Join Date: Jan 2019 Motorcycle(s): GPX250 1989 model and 1990 model Posts: 98
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KZ188 Muffler Update
Well finally found out what these are off - 2006, ZZR250. I have now put them on my 1990, GPZ250 and can report the following,
1. The bike pulls harder right through the rev range, 2. Sixth gear pulls as hard as fifth did before the change, 3. I top my local ‘test hill’ At 125kph where previously it was 110kph. These have made a previously great bike even greater. I did replace the carb set with a set from a later model ZZR250 last year but it seemed to make no difference to performance other than clear up the idle issues the bike had. Perhaps it needed a matching ZZR exhaust system to bring out the full potential. Don’t know and don’t care, just enjoying the purple patch with this bike!
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Perpetua Culpa Alterna Vagus |
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