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Old 25 August 2009, 16:07   #1
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Suzuki dt65

Hi, I have been offered an Avon rib with a Suzuki DT65 on it, just wondered if they are looked after what are they like?
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Old 25 August 2009, 19:22   #2
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I like Suzukis, and have had a few. All 2-Strokes of course as I prefer them.

The DT40 I had was nice and of course the DT200EFI I have now is fantastic.

If it's the same DT65 I'm thinking of, then it will be the triple cylinder.
I had a DT55 triple which is basically the same engine and it was fine despite an unknown history.

The waterways on them appear to silt-up if not flushed properly, and the 2-stroke oil tank level sender has a tendancy to give up and put the engine in limp home mode despite a full tank of oil. Replacements are expensive, but it's cheaper to blank it off and hard wire the plug so the system thinks the tank is full all the time. You do of course then need to make sure you keep it topped up. I still have my wiring diagram to do this.

The only other issue is looking after the wiring, which does appear to be of crap quality at times, and likes to turn itself Black at the slightest whiff of salty air. Although I'm convinced they are no worse than other makes.

I have a few spares in the garage and am very near to you, so let me know if you need help.

Nasher
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Old 25 August 2009, 19:29   #3
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DT65: Nice motor What age is it?
In addition, to what Nasher has posted, also look out for the oil filter/flow sensor and the water temp/float sensor in the cylinder head. These are prone to failure and sending the motor into 'guardian' mode.
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Old 28 August 2009, 04:18   #4
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Hi I have a Avon 4.7 searider with a DT65 Suzuki (98). It's working quite fine. I agree that the cooling pipes needs flushing now and then.. but no big issue. did not had any oil sensor problem. I've only changed spark-plugs and water-pump impeller 3 times since 98 and it's still running smoothly...
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Old 28 August 2009, 12:32   #5
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Quote:
Originally Posted by njensen View Post
Hi I have a Avon 4.7 searider with a DT65 Suzuki
You've chosen well there.
Any pics?
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Old 16 September 2010, 09:34   #6
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Quote:
Originally Posted by Downhilldai View Post
You've chosen well there.
Any pics?


I'm a bit late in this thread but would like to share a few pictures anyway. I have build a new steering console this spring. There's a 62 liter fuel tank build in. One the pictures the seat is missing, but you can see "before", "plan", "execution" & "the result".

I'm very satified, but now i'm (again ... again ... again ) thinking about repowering to a 90 HP E-tec.

I got the desire, need & money.... but for some reason still a bit slow on the descision !
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Old 14 October 2010, 17:11   #7
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Dt65 suzuki (95)

Owned this motor for a year now-goes well, starts all the time.
But recently noticed it misfires at high revs.checked spark and fuel hose. What
else could be the cause of this prob.
Will be glad to hear from yous....Should I go straight for Carb but it idles prity good.
I do see signs of unburnt fuel in water at idle speed.
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Old 14 October 2010, 19:50   #8
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If it still does it after trying all the usual stuff, plugs, cleaning carbs etc then it could be the motor cutting in and out of limp home mode because the oil level sensor is on it's way out.

The sensor on the oil tank is known for corroding inside the tube, and telling the system the oil tank is empty when it's really full, so putting the engine in the 'limp home' mode.

Both my DT40 and DT55 had this issue, and as the sensors are very expensive I cut the plug off the sensors and hard wired them to read full all the time. Then kept an eye on it manually of course.

It's also worth checking the advance/retard mechanism is adjusted properly.

Nasher.
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Old 16 October 2010, 00:02   #9
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Dt65

I'll probably start with cleaning Carburator n see if it makes any diff.
Then will go to oil sensor. Will keep you guys posted.
Thanks Nasher
My other motors were Yamaha 50 and Mariner55 had no prob with those.
However I like Suzuki for it power and would want to keepit for a while.
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