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About LinkBackshey i have a 1998 yamaha wave runer and its only doing a top speed of 70kph and reving to 7500
have cleaned carbys,fresh fuel new battery and spark plugs. what could this be?
hey i have a 1998 yamaha wave runer and its only doing a top speed of 70kph and reving to 7500
have cleaned carbys,fresh fuel new battery and spark plugs. what could this be?
How did you measure the speed you say it's doing?
from the dash. you get about 65 - 70kph depending on the conditions.
Last edited by akka; 25-11-2010 at 02:42 PM.
Have you 'lubed' up the speedo wheel?
yeah speedo wheel works fine. just had a tune up and another carbly clean done replaced fuel filter and primer. and has made no difference at all. jetski while running is quite load compared to other two strokes.
Check your exhaust.
Cant remember exactly what it was but something can come loose and get stuck in there.
SR20LUX had it happen to him in his 1300. His performance went down the drain and was struggling to get to top speed.
Will get more info and get back to you.
Originally Posted by HRD2MS
No çat con' on that ski. Not on OZ delivered GP1200Rs either, only from the 1300s, and they fall to bits at about 100 hours.
hi,im a new member in this forum
check this siteM5072A
i had same issue while ago on 1200, replaced impeller and went like a rocket, although you may not feel this, but its probably starting to have had its days, they warp, decraese in diameter, even in the SMALLEST un noticable in the human eye. mine was losing too, put new prop in, same size/brand etc..and went totally diff, and went put them up against each other, could not notice a difference.
hope it helps.
" IF IT PASSED YOU, IT MUST BE A GP1300R"
ski should only be 7100 - 7200 rpm stock if you are seeing 7500 rpm i would check your impeler and wear ring sounds like you have a slipping prop. If you are seeing 7500 rpm carbs would be ok.
Also there is no cat in the 97-99 gp1200 skis great ski light and fast 230 kgs works great with few mods had one for 9 years was hard to part with and still miss it .
99 GP1200x Riva head 38cc, ported casses and block, true and welded crank, Riva cdi mod 2, Carbon Tec reeds, Riva reed stuffers, Riva sidedraft manafold, 84.5 Pro X pistons, Tau Ceti f/a, primer kit, Pistonwash exhaust mod, Jetworks exhaust mod, Umi steering, Riva sponsons, Worx intake grate, Riva limited rideplate, Pro Tec extended nozzle, custom trim tabs, Torco oil 40-1, Solas 13/19 concord prop,
08 FX SHO Riva power filter, R&D cfm kit, Riva free flow exhaust, Riva intake grate, PPK,
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