Help a newbeginner..

No eBay APP ID and/or Cert ID defined in Kunena configurationThank you verry much for the respson!

I`m planing to by new fuel valve, so the valve is not any problem in the future

I have now almost complete my rebuild of the carbs... hope they will work hehe
It tooks some time to locate parts on internet etc...

I have followed these guide for rebuild of the carbs:
temp.dynamitt.net/div/MC/carbs/vm_carb_rebuild.pdf

I have uploaded some pictures here from the work:
temp.dynamitt.net/div/MC/carbs/

I have one questions for you all
Page 9 Fully open posistion, I shall check that sldies is around 0,5-1mm above the top of the intake chamber. I think I have understood these, but are now 100% sure, please see these video I have recorded:
vid.me/Z52e

Is these correct? shall the slide stop like these?

Thank you for taking time looking into these!

Next step for me is to put som temp. paint on the gas tank... adjust valves.. and then tune carbs... hopefully will I have a bike for the summer and start new project late summer

I have written on different threads, but since these threads has been used for carbs and motor condition will I contiune here.

1. I have adjusted the valve clearnes.
2. I have rebuild the carbs with new o-rings, gasket etc..
3. I have tried to get correct float height on the gas in the resorvar, these was not so easy.. but I have found a okay level now I think,
3 og the carb is on the top where the resvoar change size, where the screws is, and one if lower, but not much.

Task Today:

Task 1:
I installed the carbs today, and the bike started easy. I have folowed attached carbs rebuild guide.
Point 36 "Turn each pilot air screw slowly (both ways) up to one full turn until you hear the engine speed max out. ........
Please see attached guide for complete point 36.
I found these diffecult it was not easy to hear the engine rise, If I turned the screw to the buttom the engine was slowing down and and new sounds... And if I turn it out 1 turn + I could hear it starting up again... but I dident experience the RPM was going higher and higher...
The engine was not going 100% on the same RPM either, but it was not many 100RPM different...

Have I done something wrong ???
I don`t think I have gone these mix screw tuning perfect... must try to get some experience from poeple inside here and read more and do some more attemps...

Now they are 1 turn out pluss 1/4 maybe..

Task2:
I was going further and did carb sync, see attached video.
I think I was doing these correct, I adjusted so the the gauge was showing almost identical on all 4 carbs when I give throttle and idle... ?

Video:
temp.dynamitt.net/div/MC/IMG_3684.MOV

Task 3:
Test drive, First must I say that I`m not a experience driver, I`m working on my licens now, and the driving I have done until now is the on the school bike who is new and don`t have carbs.

1. When I was driving the bike it was running smoth up to 4k RPM, not problem.
2. If I give full throotle It`s not respons with full force, You can hear it "want" to give full force, but cant`t... almost like a sound you
"choking" and it has bad timing... But if I only give around 50% it acc. nicely with good speed and no issues...
3. If I example acc to 4K RPM and when goes up to 4,5 it was going okay and then go to 5 it was okay.. so if I was going slowely the bike was running better...
4. eraly on the test drive the point 3 was not identical, It was going smoth between 1-4K, but over 4K it start "popping" in the carbs and it was not running smoth.
5. I have tested running up to 6-7K RPM and it was running okay, but I need to take it up to these RPM slowely.

Maybe these is confusing how I write it.. hehe

How smoth shall the engine be ? what is the goal ?

You are running to lean with pod filter.
Your jet # are for stock air filter and housing.
check your spark plugs



Michael

ahh, you have check what jets I have ? I have written what Jets I have eraliere in these thread.

I will drive and check the spark plugs tomorrow.
Can I just take them out and take a look at them or must I drive some spesial first and then take them out?

I`m realy grateful you taking time for looking into my issue.

The previuous owner said the bike has runned nice for 5 years hehe... He is lying then if the jets are to small...

I will check the plugs tomorrow.

I have seen your sync video and the (full) throttle response and feedback of the engine was not so good.
To check the spark plugs warm up the engine and ride the bike for a short distance ( 2 - 3 miles ) under full throttle.
Stop the engine with the kill switch under full throttle and then check the spark plugs color (take a picture).

To me it sounds like a typical problem related to using pods and not properly rejetting (if such a thing is truly possible).

Did the bike have pods on it when you bought it? If so, did it run well when you bought it? If not, have you gone through the rejetting exercise to tune the carbs to work ok with pods? Do you still have the stock airbox and filter? Ed

Scirocco wrote: I have seen your sync video and the (full) throttle response and feedback of the engine was not so good.
To check the spark plugs warm up the engine and ride the bike for a short distance ( 2 - 3 miles ) under full throttle.
Stop the engine with the kill switch under full throttle and then check the spark plugs color (take a picture).

When you saying (full) throotle are you ref. to the video? I was not giving full throttle on the video maybe only 20-30%.
But the full throotle is not good... almost no respons... the sound from the big is almost like it try to start... pickin up on something, but it dident start... if I can say it like that..

Must I clean the plugs before I do these?
I will drive to the bike tomorrow and do these test, will take picutes and publish here.

Are we sure that I havent done something wrong with the mix screw who can cause these problem we are facing?

650ed wrote: To me it sounds like a typical problem related to using pods and not properly rejetting (if such a thing is truly possible).

Did the bike have pods on it when you bought it? If so, did it run well when you bought it? If not, have you gone through the rejetting exercise to tune the carbs to work ok with pods? Do you still have the stock airbox and filter? Ed

Thank you for taking time, in page 1 for these thread will you find more information.
It was snow when I bouth the bike, so It was not possible to test drive it, we only runned on natural....
The Pods was installed when I boufgt it and the owner, said we have used the bike for 5 seasons without any issues... I don`t know If I can trust him on that... I have not done any rejetting and I have the airbox, but not the filter.

Please see attached link for jet size installed when I bought the bike and what is installed now also:
temp.dynamitt.net/div/MC/dyser.jpg

If it was my bike I would install the air box, buy and install the stock air filter, and install the stock jetting. I would then tune the bike and get it running well. If at that point I still wanted to install the pods I would have a baseline from which to measure their performance as I fiddled with trying to find the best jetting combination. Ed

650ed wrote: If it was my bike I would install the air box, buy and install the stock air filter, and install the stock jetting. I would then tune the bike and get it running well. If at that point I still wanted to install the pods I would have a baseline from which to measure their performance as I fiddled with trying to find the best jetting combination. Ed

I`m going to use pods in the end anyway, so I don`t think I save time by going first to original airfilter first and then going to pods, have to re jet two times then?

It must be other on these forum who has same engine and carbs with pods ? what jets are they using? I can then use that as a baseline?

if you see on page one is a person saying that he think the jets are to rich, hopefully will test tomorrow show us that.

Watching your thread. I have very similar issues on my z1. I just tested Air screw and was still increasing rpm at two turns out. I have one size larger pilots than stock. I will test more tomorrow and post if I think my finding will help you.