I am going to open my friends DS to get the jetting right. We are going to install a new K&N and dynojet kit. While we have the carb off I might as well make sure the float level is right. Do any of you know exactly what the level should be and how to measure it? Then also, what level should the fuel be if you use the clear tube method to check it. An extra bonus would be to get a hold of the workshop manual.

 

yeah i just bout a cd manual off ebay for $ 15.00 thing is awsome just print your pages needed and take them with ![img]i/expressions/face-icon-small-happy.gif[/img]

 

Can you tell me what the manual say the float level should be?

 

manual says float level should be between 0.374" to 0.414".

 

Thanks for the reply javex. AM i correct to assume that that this distance is from the carb mating surface where it connects to the float bowl to the top of the float? Does it also say that you should check this height without compressing the needle valve spring. I know most other carbs work like that.

Then lastly do they mention what the level should be if you use the clear tube method?


Last question. Can you tell me what the stock main jet and air jet sizes are

We installed a new K&N, with outerwear and a dynojet kit. The bike is stock, running stock pipe and baffle. The dynojet kit recommends the jet to be a size 170 for 3000 to 6000 ft above sea level. We followed the advice but the bike is running way rich. We pulled the plug and it is black all over.

We then went one jets size smaller, 165. The bike runs better but still not as good as it should. It is the smallest jet in the dynojet kit.

The jets where done before and I believed they installed a new air jet. Is the 45 standard?

 

measure the distance from from the carb mating surface where it connects to the float bowl to the top of the float WITH compressing the valve spring. nothing mentioned about the clear tube method. stock main jet size is 165. and i believe if i reading the data right, the "Main Air Jet" is a 120. the closest thing to a standard 45 is the pilot jet which is a 40 stock.

 

Thanks again javex.

I will check the float level as you described. There is 3 jets on the carb. The main, We had a 160 in it, the Pilot jet not sure size and there was a another jet left below the main jet that had a 45 in it. The main and this 45 jet looks like standard jets. Meaning they are short little ones. The air (Pilot jet) we have not looked at. You say it should be a 120?

We installed a K&N and Dynojet kit. The dynojet kit recommends a 170 DJ jet for our conditions. The bike had very good low and high RPM output, but it bogged down and stuttered in mid range when you had the bike in 5th gear and you accelerated from low RPM to redline.

I cannot believe the Dynojet info will be wrong. I have used these jets on other bikes before and they worked great. The bike is running very rich. I went down to a 165 DJ jet and the fault is gone, but the midrange is still not great. I have an idea that when the bike was on the dyno the guys jetted it differently and they changed pilots. The DJ kit uses the stock pilot jets. I need to make sure the shop did not change them and that is what is causing the fault.