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Author Topic: Drz jetting  (Read 926 times)

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Offline SJ

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Drz jetting
« on: May 21, 2013, 06:59:12 pm »
My drz was bought from someone up in north west and it is now at sea level and running lean. I think its an e model. It has the stock plastic tank and thicker header. The carb is a mikuni 36mm. I can't figure out which jets to use. I think its a 160 main and 22.5 idle. I apologise for the noobishness I just got rid of my 125.

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Offline Jag man

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Re: Drz jetting
« Reply #1 on: May 21, 2013, 07:04:40 pm »
Yip it's an e.When I had mine I bought a Dyno jet kit ,it comes with all different size jets and also tells you which jets to use at which sea level you are at.Was the best kit I bought for my drz.Hope this helps.DRZ rocks ,Awsome bike should never have sold mine.
 

Offline Operator

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Re: Drz jetting
« Reply #2 on: May 21, 2013, 08:20:52 pm »
Dont mock around..................take the bike to Superbike Solutions (Wrench here on the forum) and let
him do the jetting and dyno run for you.

He did absolute magic on my DRZ.  It was money well spent.  :deal:
 

Offline SJ

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Re:
« Reply #3 on: May 21, 2013, 08:29:10 pm »
I checked mine and it has a 60 idle and 155 main. Where can I find a dynojet/JD kit locally. I was going to take it to superbike solutions after hearing praise about them but when I phoned and asked about the drz I was told `We don't do the 400`

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Offline SJ

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Re:
« Reply #4 on: May 21, 2013, 08:29:50 pm »
I'll send wrench a pm, I doubt he will we this.

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Offline SJ

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Re: Drz jetting
« Reply #5 on: May 22, 2013, 10:41:35 pm »
Yip it's an e.When I had mine I bought a Dyno jet kit ,it comes with all different size jets and also tells you which jets to use at which sea level you are at.Was the best kit I bought for my drz.Hope this helps.DRZ rocks ,Awsome bike should never have sold mine.

I will be getting a set of these. Hopefully soon. Thanks for the help.
 

Offline SJ

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Re: Drz jetting
« Reply #6 on: May 22, 2013, 10:42:53 pm »
Dont mock around..................take the bike to Superbike Solutions (Wrench here on the forum) and let
him do the jetting and dyno run for you.

He did absolute magic on my DRZ.  It was money well spent.  :deal:

Its a little out of budget for now. I'll do the jets myself and get it tuned properly later on.
 

Offline lecap

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Re: Drz jetting
« Reply #7 on: May 23, 2013, 08:28:12 am »
Dont mock around..................take the bike to Superbike Solutions (Wrench here on the forum) and let
him do the jetting and dyno run for you.

He did absolute magic on my DRZ.  It was money well spent.  :deal:

Its a little out of budget for now. I'll do the jets myself and get it tuned properly later on.

I advise against that.

Setting the carb up professionally costs a fraction of repairing a blown lean runner.

Agree with Operators recommendation. Take it to Wrench. I don't understand their comment about the 400. Must be some misunderstanding?
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Offline Operator

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Re: Drz jetting
« Reply #8 on: May 23, 2013, 08:37:00 am »
Dont know if Wrench dont want to do the DRZ's anymore.................I know for a fact it is a bitch
to take that carb out and fit it again.
On my DRZ it took 21 runs to find the perfect jetting, which meant 21 dyno runs.


You would be a fool to play with jetting without a dyno run....................actually it is downright
dangerous as you can do serious harm to the engine.


What LeCap said should not be underestimated.....
Quote
Setting the carb up professionally costs a fraction of repairing a blown lean runner.
 

Offline SJ

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Re: Drz jetting
« Reply #9 on: May 23, 2013, 09:01:10 am »
I sent him a message and he will do the jetting he just says he has just had trouble with people complaining about the cost. Seeing as though a jet kit is R850 I think I will take it to them I don't want anything to break because of my cheapness.
 

Offline Operator

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Re: Drz jetting
« Reply #10 on: May 23, 2013, 09:11:37 am »
I sent him a message and he will do the jetting he just says he has just had trouble with people complaining about the cost. Seeing as though a jet kit is R850 I think I will take it to them I don't want anything to break because of my cheapness.

You're still missing the point....................is does not mean that your jet-kit will necessarily be the best for your bike.

He will do experiments with different size jets and do dyno-runs inbetween to determine whether that specific jet-size is the best.
On my DRZ he did 21 changes = 20 different jets.
I doubt that your jet kit will have 20 different options.

Let him do what he does best............let him supply the jets and do the dyno.
Trust me on this. You can thank me later  ;)
« Last Edit: May 23, 2013, 10:45:52 am by Operator »
 

Offline sidetrack

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Re: Drz jetting
« Reply #11 on: May 23, 2013, 10:40:38 am »
The E should have a 39mm Keihin FCR carb. The Mikuni is found on the S.
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Offline SJ

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Re: Drz jetting
« Reply #12 on: May 23, 2013, 12:32:00 pm »
The E should have a 39mm Keihin FCR carb. The Mikuni is found on the S.

This is what confuses me the most! I have the carb on my desk at the moment and it says mikuni on the side, I presume the bsr36 cv.
But the rest of the bike fits the e profile. Standard 3x3 hole in the air box, bigger header open exhaust. The tank is also plastic.
 

Offline SJ

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Re: Drz jetting
« Reply #13 on: May 23, 2013, 03:44:11 pm »
I sent him a message and he will do the jetting he just says he has just had trouble with people complaining about the cost. Seeing as though a jet kit is R850 I think I will take it to them I don't want anything to break because of my cheapness.

You're still missing the point....................is does not mean that your jet-kit will necessarily be the best for your bike.

He will do experiments with different size jets and do dyno-runs inbetween to determine whether that specific jet-size is the best.
On my DRZ he did 21 changes = 20 different jets.
I doubt that your jet kit will have 20 different options

Let him do what he does best............let him supply the jets and do the dyno.
Trust me on this. You can thank me later  ;)

I have booked the bike in with him, but I think I may have found the problem. I took another look in the carb before putting it back together and I found what looks like oxidation. Seeing as the the bike has a plastic tank I presume it was filled with an old Jerry can or the petrol station's tank was close to empty.

http://i.imgur.com/orK69sZ.jpg

http://i.imgur.com/ECqMh6n.jpg
 

Offline SJ

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Re: Drz jetting
« Reply #14 on: May 23, 2013, 03:46:26 pm »
I can't seem to get the photos to display properly  :-\

But I will run the bike and then pull the plug and see what it looks like. If it is still running badly I'll take it to Julian and let him do his magic.

Thanks for the help everyone  :thumleft:
I'm still learning, albeit very slowly.
« Last Edit: May 23, 2013, 03:47:43 pm by sjk936 »