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Beginning jet settings incorrect...2nd times a charm

Old 08-04-2005, 03:32 PM
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Beginning jet settings incorrect...2nd times a charm

ok..I rejetted my bike the other day with the following settings from the factory jet kit.
#175fr/#178r
needles at 2nd clip
2.5 turns on fuel screw
#50 pilot jets

when i used these settings when the bike was cold, and cruising from 3-4000 rpms the engine would missfire slightly. When the engine was warmed up cruising from 2-5000rpms the engine would missfire a lot.

at idle revving the engine developed no backfires and it sounded wicked.

the upper rpm band was powerfull cold and hot.

So i figure that the engine is still lean because of the missfireing.

Im thinking about these settings....

#178fr/#180r
additional 1/2 turn on fuel screws
2 clips on needles
#50 pilot jet

What do you guys think?
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Old 08-05-2005, 12:10 PM
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Re: Beginning jet settings incorrect...2nd times a charm

Ok. I have some good and really messed up news.

Today I re-tuned my jet process on my bike and changed the settings on my needle clips from 2-3 and adjusted my fuel screws back to there original position which was 2 3/4 on the front and 3 on the rear. Hopefully this will make the midrange a little bit richer. At least i think it is running lean because it keeps missfiring in the midrange.

In the instructions it says if the engine has a "dry" flat spot at aproximately 3500 to 4000 rpm, raise the needle from 2-3. This will richen up the area.

And if the enigine has a "wet" rythmic, soggy spot at 4000 rpm that getts worse as the engine heats up lower the needle and lean out that area.

But what if my symptoms are both. I cant really tell because it just missfires.

When the engine was at idle the bike missfired a couple of times up untill i shut her down.

So my current settings are:
#175fr/#180R
needle at 3rd clip
2 3/4 turns on fuel screw front and 3 turns out on rear.
#50 pilot jet

This time it only took about an hour to do all the work on my bike but when I went to put the carbs back in the bike I STUPIDLY overtightened the front choke cable and it broke off in the carb.

So after a little bit of work I got the broken piece out of the carb and the 2nd broken piece out of my cylinder hole! Thank god the intake valve was closed and I ordered up a couple of new cables from honda.

So next week I will get to test out my settings. Damnit! I really wanted to go cruising tonight.
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Old 08-10-2005, 01:32 PM
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Re: Beginning jet settings incorrect...2nd times a charm

Well I am still waiting on the choke cables to get in! Damn Honda. They were on backorder which I didnt learn from the delears untill yesterday. Freaking bitch! But I ordered the part on Bikebandit.com and paid extra for the shipping out here. So maybe Saturday I will get the part in. Untill then Im just twiddling my thumbs.
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Old 08-15-2005, 05:37 PM
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Re: Beginning jet settings incorrect...2nd times a charm

Finally!!
I got the valve for the choke cables in today and put my carbs back in and took it for a ride. Man! No missfiring, pulled wicked! and is smooth idling. I may have to raise the idle a bit because it is below 1K but it is sweet to finally be able to ride my bike and nothing bad happen :P

Final settings:
#175fr/#178R
needle at 3rd clip
2 3/4 turns on fuel screw front and 3 turns out on rear.
#50 pilot jet

These settings are with. K&N air filter, Exhaust Bafflectomy, PAIR disabled, Air box screen on left side removed.
Bike runs great and runs pretty cool. About midway on the temp gauge.
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Old 08-23-2005, 10:44 AM
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Re: Beginning jet settings incorrect...2nd times a charm

Any of you guys have a PDF, or other Doc style file, of the DynoJet instructions? My VTR had a kit when I bought it (used /w 2000mi). I have leftover jets, but no instructions! It runs well, with Yosh Ti slip-ons and a K&N, but if I want to make changes I have no idea which way to go?
Thanks, even a Factory set of instructions would help.
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Old 08-23-2005, 01:05 PM
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If it runs well, don't mess with it.
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Old 08-23-2005, 06:42 PM
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Re: Beginning jet settings incorrect...2nd times a charm

First...I dont have my scanner so I cant scan the Factory instructions in for you 102dals

Secondly back to my jetting...
I was wrong in my assumption that I had it all figured out. I dont yet. At idle the engine sometimes just dies. Why does it do this? Is it too lean, to rich? Whats it doing. Do I need to adjust the fuel screws?

thanks

Justin
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Old 08-26-2005, 02:31 PM
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Re: Beginning jet settings incorrect...2nd times a charm

It isn't that I want to mess with it... I just want to know what they are, and what they should be.
I've changed jets a million times on my 88 Hawk GT, and I know it's the same procedure. The carbs even look the same.
Anybody?
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Old 08-30-2005, 10:09 AM
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When I had the Factory #50s in it, I couldn't make it idle reliably with any jets/clip/screw settings. Had to fall back to the #45s.

On the plus side, if anyone in Florida needs their carbs pulled, I've gotten quite profficient at it...
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