ttt

Wow, this thread was buried 6 pages down. I'm baaaaaaaaaaaaaaaaaaack.

Well, it only took about 8 weeks for the painter to finish my tank. A lot of wasted time and I'm missing all the good riding weather. He did a fantastic job but I'm really bitter from having to wait so long and listen to all the excuses. It will be mounted and filled with gas tomorrow. The final step in a 8 month long journey.

Are the purists going to be all up in arms? You'll have to wait until the final pictures before judging.

Greatest thread I have ever read on this site. Surte I'm new here but this is/was amazing! I just hope my build starting at the end of this month will be in the same ballpark as yours!
Kudos fellow American!!!

Kurt
Minneapolis, MN

what ever happened to this hool,i think we've waited long enough now to see the new paint job..

what ever happened to this hool,i think we've waited long enough now to see the new paint job..

+1

Show us the pics!

Sorry, as you are all well aware, the world has been falling to pieces lately. I haven't had as much time to work on the bike. Focused on family, work, and just plain surviving. Everything is done, just need the time. I rode the bike 10 miles in the neighborhood last weekend with no bodywork, so I know everything mechanically works. Checked and re-checked all bolts and torques. No leaks, nothing fell off. LOL Carbs definitely need balancing, and that's it. That is scheduled for next week. So I have been holding off mounting the bodywork because it will just have to come off again to access the carbs. Having the carbs on and off the bike several times has surely moved the linkages and brackets around a bit so they are not balanced 100%correctly. I found out the hard way not to remove the airbox base or "carb bracket" from the carbs as others on the site have indicated. This prolly knocked them slightly out of alignment/balance. Plus the bike sat idle for many years so who knows if they were ever set correctly in the first place. The bike will idle fine on the sidestand and then intermittently the revs will pick up and race to 6000 rpm and then cycle back down. I think what is happenning is that on one of the carbs the butterfly opens up slightly and the revs pick up and it sucks the other carbs open as well. At idle and low to medium speeds the bike would surge a little and not rev cleanly. When I rode the bike I ran it through the gears (1st-3rd) on a empty road at full throttle and everything seemed fine. In theory at full throttle the butterflies are all open so synchronization/balancing doesn't really come in to play. And that's all, once the carbs are balanced the bike is complete. Happy days!

I balanced the carbs this afternoon and as expected they were quite a ways off. Took a while but I was able to bring them within spec and the bike started, idled, and revved much better. Set the proper idle and the bike was lean as indicated by a slow drop in revs when closing the throttle. I had to turn out the pilot screws to 3 1/4 turns on the front cylinders and and 3 turns out on the back cylinders to get to 3.89% on the Exhaust Gas Analyzer. My mate who is a race mechanic was watching (but not helping cause I adamantly want to do everything on this bike myself) and he suggested anything over 3 turns out on compensating with the pilot screws would indicate the bike is still running lean and needs going up one more main jet size. I currently have 110 mains installed and a half mm shim on the needles. Stock filter and stock airbox. The exhaust outlet on the can I have (unknown brand?) is much larger and is probably flowing 50% more than stock. The bike has a slight hesitation or bog coming off a closed throttle but is fine higher up the rev range. Does anyone think I need to go up another jet size? I know a dyno run would be helpful also but trying to control costs at this point. Still haven't really road tested the bike just ran it around the shop complex in 1st and 2nd gears. Anyone with any other recomendations? He also said I could run race gas to compensate (100 octane) which would be great for the track but overkill on the street. Thanks!

All that is left now is to mount the bodywork. Cheers.

RVFHooligan wrote: I had to turn out the pilot screws to 3 1/4 turns on the front cylinders and and 3 turns out on the back cylinders to get to 3.89% on the Exhaust Gas Analyzer. My mate who is a race mechanic was watching (but not helping cause I adamantly want to do everything on this bike myself) and he suggested anything over 3 turns out on compensating with the pilot screws would indicate the bike is still running lean and needs going up one more main jet size.

I think he means go up one pilot jet size not main jet. This will screw all your current jetting up though, not advised and theres no reason you should be messing with pilot screws/jets considering your setup is near standard.

Your settings sound wrong. Forget the gas analyser and adjust the pilot screw to the factory setting (1 5/8 turns out), gas readings are not important at those revs, tune it for response. Use the gas analyser from about 4k rpm upwards.

Your current pilot screw setting will be way too rich for any sort of decent response!

RVFHooligan wrote: I currently have 110 mains installed and a half mm shim on the needles. Stock filter and stock airbox. The exhaust outlet on the can I have (unknown brand?) is much larger and is probably flowing 50% more than stock. The bike has a slight hesitation or bog coming off a closed throttle but is fine higher up the rev range. Does anyone think I need to go up another jet size?

Your jets will be fine, if in any doubt go to 112's all round. The only way you'll know what's better is to get it on a dyno.

Let us know how you go.

Thanks Stickshift, I know the pilot settings sound wrong but I changed them a 1/4 turn at a time, then an 1/8 turn at a time until I got to those settings and the bike ran better and better each time I tested it. In the end it ran real good at those settings. I will probably dyno the bike first and see how it looks. That will be the only way to tell for sure. I may have to try 112 mains all around and reduce the pilot screw settings back to standard. Atmospheric conditions have alot to do with it also and I am located in Florida. I'll let you know. Thanks.

Totaly off subject. But i am heading to Orlando at the end of April. What will the weather be like?

ALso do you need any parts bringing over ?

Matty.

matty_boy wrote:Totaly off subject. But i am heading to Orlando at the end of April. What will the weather be like?

ALso do you need any parts bringing over ?

Matty.

Hey Matty thanks for the offer but I HOPE I'll be done with the rebuild by then! The weather will be perfect in April, temps mid to upper 80's. You'll miss Bikeweek which is in early March but there should be something else going on. I'll check things out and let you know closer to April if there is anything cool to do or see around that time. Jeff