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WOW, what a difference changing pilot jets!!

  • Thread starter Thread starter Road_Clam
  • Start date Start date
R

Road_Clam

Guest
For weeks now I've been having cold engine drivibility issues after installing a full exhaust on my 1100E. It was a little hard to start, kept stalling, and had a pronounced "hesitation" right off idle for about 1/2 hour after starting. I finally pulled the carbs for the FIFTH time, and went from #45 pilots to #50 pilots. I also adjusted my air screws from 3.5 turns out to 3. After all was back together, it was time for the BIG test, the cold startup! A good crappy raw day to as it was 46F outside. 3/4 choke, and popped the button, the engine immediately roared to life, and maintained a smooth high idle! Now I happy! After about a min. I shut the choke off, and the engine immediately setteled down to a perfect smooth 1200 rpm idle. Blipping the throttle was perfect as well (I could never do this before when cold). I hopefully can go for a ride later this week for a full test. So if any of you have the same behavior as me toss in some richer pilots, you will be amazed how well they smooth out bottom end fuel delivery!

BTW: here is my final, finalized "i'm DONE" jetting specs: #110 mains
# 50 pilots
stock needles .020" shimmed
stock air bleed jets
drilled bypass slides
2.5 turns out on the air screws

Right now, i'm riding in temps from 45F to about 70F and this setup seems ideal. I'm not sure come July, but I will post follow ups if I do need to tweak. (I really only anticipate a simple air fuel screw adj. as temps get real warm.
 
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Road_Clam said:
For weeks now I've been having cold engine drivibility issues after installing a full exhaust on my 1100E. It was a little hard to start, kept stalling, and had a pronounced "hesitation" right off idle for about 1/2 hour after starting. I finally pulled the carbs for the FIFTH time, and went from #45 pilots to #50 pilots. I also adjusted my air screws from 3.5 turns out to 3. After all was back together, it was time for the BIG test, the cold startup! A good crappy raw day to as it was 46F outside. 3/4 choke, and popped the button, the engine immediately roared to life, and maintained a smooth high idle! Now I happy! After about a min. I shut the choke off, and the engine immediately setteled down to a perfect smooth 1200 rpm idle. Blipping the throttle was perfect as well (I could never do this before when cold). I hopefully can go for a ride later this week for a full test. So if any of you have the same behavior as me toss in some richer pilots, you will be amazed how well they smooth out bottom end fuel delivery!
Click to expand...
Its really nice when the plan comes together and all that effort comes to fruition (-:
 
Is 1200 RPM with the choke off a bit high? I know it "cures" some engine and clutch rattles, but I would have thought 900-1000 is more appropriate? Cheers, Terry.
 
terry said:
Is 1200 RPM with the choke off a bit high? I know it "cures" some engine and clutch rattles, but I would have thought 900-1000 is more appropriate? Cheers, Terry.
Click to expand...

I usually have my 1100E idle around 1200. I think most do here also.
Could be for the clutch rattle noises or just she seems to run better:-s
 
terry said:
Is 1200 RPM with the choke off a bit high? I know it "cures" some engine and clutch rattles, but I would have thought 900-1000 is more appropriate? Cheers, Terry.
Click to expand...


No. The manuall recommends 900-1200 rpm's. I always favor the high side. It starts hot quicker, and with a higher idle you have more oil volume being pumped at idle. This is especially important if you get stuck in traffic on a 85F day)
 
Actually, a higher idle is bad for sitting in traffic. Our engines use extrememly low oil pressures, like 4 psi. I keep my idle at 1050 on the nose.

Oh, and by the way Clammer:
I finally pulled the carbs for the FIFTH time,
Click to expand...

BOO FREAKING HOO! 5 times? Call me when you eclipse 30 and I might have some sympathy for you! (I doubt it though).:shock: :-D
 
Jethro said:
Oh, and by the way Clammer:


BOO FREAKING HOO! 5 times? Call me when you eclipse 30 and I might have some sympathy for you! (I doubt it though).:shock: :-D
Click to expand...


Learn how to jet, and it will only take you 5 tries! Don't get frustrated, just PM me if you need some schooling on jetting! :) (just breaking your ballz dude!)
 
Road_Clam said:
Learn how to jet, and it will only take you 5 tries! Don't get frustrated, just PM me if you need some schooling on jetting! :) (just breaking your ballz dude!)
Click to expand...

:cry:

At least I have the "faster" black engine 1100E!\\:D/
 
headsbikesmopars said:
You guys are scaring me...
Click to expand...

You should see us when we actually start arguing.

While I am here, I took the Clam bike to work today to further shake down my jetting (and my gearing change), and I must proudly say, I have this bike DIALED in SWEET. I am done tinkering!! The engine starts and runs perfect, and the bike handles perfect! Now it's time for some much deserved payback......... in the form of just RIDING the dam thing!
Rich
 
Road_Clam said:
You should see us when we actually start arguing.

While I am here, I took the Clam bike to work today to further shake down my jetting (and my gearing change), and I must proudly say, I have this bike DIALED in SWEET. I am done tinkering!! The engine starts and runs perfect, and the bike handles perfect! Now it's time for some much deserved payback......... in the form of just RIDING the dam thing!
Rich
Click to expand...


Good for you Rich.
At least you could get out and ride. Hopefully the roads open up around here soon.
Most of the good backroads are closed due to flooding:cry:
 
Jethro said:
:cry:

At least I have the "faster" black engine 1100E!\\:D/
Click to expand...

Yeah, these "Black" engines are weird fast. Especially when they have chrome pipes :twisted:
 
Road_Clam said:
You should see us when we actually start arguing.

While I am here, I took the Clam bike to work today to further shake down my jetting (and my gearing change), and I must proudly say, I have this bike DIALED in SWEET. I am done tinkering!! The engine starts and runs perfect, and the bike handles perfect! Now it's time for some much deserved payback......... in the form of just RIDING the dam thing!
Rich
Click to expand...


Rock on Rich! :D
 
Hoomgar said:
Yeah, these "Black" engines are weird fast. Especially when they have chrome pipes :twisted:
Click to expand...


Black......schmack...... it's NOT the color of the engine that makes a bike fast........... It's the color of the seat........ (oops, wait that's black too) ahhhh forget it I friggin give up!
 
Road_Clam said:
Black......schmack...... it's NOT the color of the engine that makes a bike fast........... It's the color of the seat........ (oops, wait that's black too) ahhhh forget it I friggin give up!
Click to expand...


Could it be the color of the bike............silver:-s :| :-D
 
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