Spree bbk issues.
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Re: Spree bbk issues.
4th notch is standard. Right where im at. On a 1985 model.
After 86 has only 3 positions. 2nd notch is standard
After 86 has only 3 positions. 2nd notch is standard
Last edited by jakubman1 on Sun Jul 03, 2016 11:32 am, edited 1 time in total.
Re: Spree bbk issues.
I wish there was a proven formula that works. Airbox holes, needle position, air/fuel mixture screw position, oil/fuel mixture, proper main jet needed, etc. There needs to be a detailed write-up with every element covered. I know theres variables like elevation that affects main jet but there could be a chart for that too. Seems like most people that do the bbk have just a stock spree so the adjustments should all be pretty close. People have been installing bbk's in Spree's for years so Im sure someone has found a successful combination.
I need to find some new haters...the ones I have are starting to like me.
Re: Spree bbk issues.
Temps are 298 @15mph for 3 miles with 2...1/2 inch holes exposed. Including the stock air holes with comes with.
Since exposing the holes from 1 to 2 my inline gas filter went from full to half full.
Since exposing the holes from 1 to 2 my inline gas filter went from full to half full.
Re: Spree bbk issues.
Did my first plug chop. I seen some particles of metal on the plug that i wiped off
Looks lean?? Temps were at 320 degrees
Looks lean?? Temps were at 320 degrees
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Re: Spree bbk issues.
Not sure how you do a plug chop when theres no clutch.
I need to find some new haters...the ones I have are starting to like me.
Re: Spree bbk issues.
Well i just took my bike for a spin and guess what.... SOFT SEIZE. Something fishy is going on here.
Meatball you were right. I was babying mine this time too. First it started with a slight knock again and it seized. I wasnt even over heating this time. I think imma just put my old engine back on and leave it alone. I even covered up 2 of m holes to run it richer.
Meatball you were right. I was babying mine this time too. First it started with a slight knock again and it seized. I wasnt even over heating this time. I think imma just put my old engine back on and leave it alone. I even covered up 2 of m holes to run it richer.
Re: Spree bbk issues.
hmmm
Last edited by jakubman1 on Sun Jul 03, 2016 9:07 pm, edited 1 time in total.
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- Spree
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Re: Spree bbk issues.
What was your compression? An like I said to much oil can cause it to soft seize.. What does the piston look like u got a picture?
86 aero af16 swap. 121cc water cool.
Polini 30mm carb
Naraku mani
Scorpion stroker pipe
Stage6 CDI
5gram rollers
Keli high speed Variator
6.1 gears
94mph
Polini 30mm carb
Naraku mani
Scorpion stroker pipe
Stage6 CDI
5gram rollers
Keli high speed Variator
6.1 gears
94mph
Re: Spree bbk issues.
Lean=seize..rich=seize....whats the remedy here? For those of us that aren't 2-stroke whisperers, can someone please tell me how to recognize when a 2-stroke is too lean/rich and what to do when each one occurs? Do I adjust air/fuel mixture screw on carb? Do I add/plug holes in the airbox? Do I change the jet needle clip to a higher/lower notch? Do I need a bigger/smaller main jet?
I need to find some new haters...the ones I have are starting to like me.
- eclark5483
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Re: Spree bbk issues.
Agreed, too much oil in the fuel can cause the motor to run lean, however increasing the amount of air/fuel premix in the same volume of air wontPeteyparado wrote:U know that to much oil can cause the motor to run lean..
Man it sucks that you guys are having problems. This might seem like a real amateur suggestion but have you got the cylinder head mounted in the correct orientation? Before I installed my BBK i noticed that my scoot would get(what I thought was)abnormally hot. Upon stripping it down turns out the previous owner had fitted the head 90 degrees wrong, causing the air from the fan to hit the side of one cooling fin as opposed to flowing through the fins correctly
Just throwing some ideas around
- eclark5483
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Re: Spree bbk issues.
My advice, is bump the oil/fuel ratio up just a bit. It's always better to err on the side of rich then it is lean. If your going 32:1 ATM, then up it to like 35:1. Yes, this will be less lubrication, but as long as your not being crazy and going WOT on it, you should be OK. Something tells me on yours, you have way too much lubrication... wasn't it you that said you were running it 30:1?
Re: Spree bbk issues.
Alright i tore it back down. Took my like 20 minutes haha. Iam running 32:1 premium with scooter pro maxima 2T.
The one on the right is my most recent. The one on the left is the first one.
Yes i did install the head on correctly.
Its gotta be jetting. I read in old posts people were using 100-105 jets in these things with the stock air box with holes.
The one on the right is my most recent. The one on the left is the first one.
Yes i did install the head on correctly.
Its gotta be jetting. I read in old posts people were using 100-105 jets in these things with the stock air box with holes.
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Last edited by jakubman1 on Sun Jul 03, 2016 9:14 pm, edited 1 time in total.
- eclark5483
- CB900F
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- Joined: Thu Apr 14, 2016 5:15 am
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Re: Spree bbk issues.
Those 2 different types of BBK's? The piston on the left looks flat... or is that just an optical illusion from the buildup?
Re: Spree bbk issues.
optical illusion. They are both the SAME EXACT.
The one on the left i added more oil to gas. Just a little though
The one on the left i added more oil to gas. Just a little though