Just been riding my green/white Kawasaki GPX750R -89 model here in North-Norway for a couple of month now, and I´m really satisfied with the bike. Only "problem" is the cam chain rattle, but as I have read on this review, there is nothing to be afraid of.. But I would probably check the cam chain tensioner and the valve clearance after this summer anyway!
The bike is really a smooth ride, and lots of power, and one thing I would like to know is the true effect. I have read in almost any reviews that the engine power is 106HK, but some people claims there is 118HK. What could be right?? Did some versions come with the 118HK engine?
I have no problem following my buddy´s ZZR1100, with far more power, but.. yeah, I know the ZZR is heavier, but still...??
Is there any "surprises" with the bike I should be aware of?
I've bought one of these three months ago and really impressed.
For an oldie it's fantastic, 41000kms and strong. Lots of power over 4 revs. Great if your budget is tight, but want to ride with the bigger bikes.
I have one too. Love it, but the only problem is that a few were released in Australia, and parts are hard to get.
My GPX 750 R is a 1987 USA model, imported into Blighty around 1995, and found its way to me through playing on ebay one day. £390 to buy, a quick wash and a new Viper 4-1 exhaust, took her for an MoT, and passed with 2 comments. Clocks loose and chain tight! 10 minutes to fix.
Had a GPz900R 20 years ago, and this feels much the same; indecently quick for a 23+ yr old rattler.
Shows her age with cracks in fairing and flaky paint, but what a bargain! BT45s work well.
Passed again this year - just new tyres so no complaints. I'll try the tensioner fix, but a Kawa mechanic told me not to worry, valves rattle too, but it all goes quiet once really warmed up. 50k kms and still going strong. 50 mpg consistent, but would do better on longer runs; my bro's TL1000 53 plate only does 40!
Bought a 88 GPX 750 about 2 months ago on Ebay for $1010, sight unseen, and when she arrived, I was so pleased; never been dropped, and in really nice nick.
She did have some dirt in the tank, so I put a flush kit thorough her, and serviced the carbs, oil etc, and she went great very fast and good handling.
I was on my way home the other day, when I noticed a squealing sound coming from the engine at low rpm. I thought it was the clutch, but I now think it may be the alternator?? Is this possible? What should I do?
Any help would be great.
Try getting alternator checked, as your belt might be on its way out. It cost me 80 pounds in the U.K. for the job to be done, including belt, as you need a special tool to tighten the adjuster nut.
Bought my 89 Black & Red GPX750R for only 650 euros, in extremely nice condition with just 26K kilometers om the odo. It has a Sebring 4 into 1 and K&N air filters. New Pirelli tyres. Before I went on the road I replaced worn sprockets and chain, changed oil, filters, brake pads. Just to be sure. Engine starts immediately at the press and runs very smooth. This old Kawa handles nicely and the acceleration above 5K rpm is stunning. This is a seriously fast bike. Touring through the countryside at 80-90kmh is very comfortable. Anyway, great value, very nice classic ride!
Does anyone know why almost all GPX's have taillight lenses with broken corners? I can't seem to find a decent replacement for mine.
One of the reasons it won't go up the gears is the position of the shifter. If it's too low, it hits the frame. Just loosen it (17mm spanner) and slide it up. That's what worked for me.
I have a GPX 750 R.
I need a new header for the exhaust, which is quite difficult to come across here in Denmark.
However I've found a GPX 600 R exhaust that doesn't cost twice the amount of money I paid for the bike itself.
Will it fit? I've also found a ZXR750 header and a ZX9R header. Will any of those fit?
I really need help, because it's my only transportation, and people are starting to look awkwardly at me...
So did I, and I've still got it.
...after reading your problem, I immediately assume it is your starter motor's ribbed belt. They are only tiny, and their tension should be set on the loose side of tensioning a belt. Yours needs tensioning ever so slightly to stop the slippage on the initial acceleration. Good luck!
Hi, I've just read your comment on fitting a 17" front wheel to your GPX, and would be interested to know if it did improve the handling?
Hi... yup, the squealing sound maybe came from the alternator belt. Try to tighten the belt a bit. Loosen 2 allen bolts on both sides, then tighten the belt by pulling the alternator up, then lock the allen bolts again.
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