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Old 04-17-2008   #5 (permalink)
polex
New Member
Grand Prix 125
 
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Join Date: Apr 2008
Location: Huntsville (Alabama)
Posts: 22
Unbelievable fuel float level

I checked again the plug on the right side and is still black.
I turned again the air pilot, now should be near 3/4 turn but I've not checked the plug color yet, but the idle seems to be more stable.
Quote:
Originally Posted by ShikePoke View Post
OEM mains = 98
OEM pilots = 38 @ ~2.5 turns.
I found this website:
http://www.thetreptows.com/Triumph/ClassicTuning10.doc
The air pilot screw OEM tune up seems to be 3/4 turn.

Quote:
Originally Posted by ShikePoke View Post
Be sure and check the proven setups, and searches will bring up even more on this subject. I had to remove the old jets, just to make sure I got the right ones when I upgraded.
Where can I buy the jets ?

Quote:
Originally Posted by ShikePoke View Post
Sound like the carbs could use a once over anyhow to check the floats, etc. You'll find plenty of help here...
I measured the bowl fuel float level by following the procedure indicated in Service Manual.
This way for measuring can be followed without disassemble the carburetor.
The gasoline level is 3-5 mm. below Joint face... The specification is 1.5 mm. above joint face.
I noticed that in "proven setups" the bowl fuel float level is measured in different way.
Is the 17.5 mm the OEM height ?

Last edited by polex : 04-17-2008 at 11:13 PM.
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