Poor/no tickover.

JO55

JO55

Full member
Location
Cornwall
I having had low rev running issues since I bought my triple, I’ve done a number of things to ensure everything was just so.
After fitting the excellent Redex ignition/generator kit, my last job was to get the carbs rebuilt.

As I pulled them off, I discovered this. All three are the same. That’ll be the cause of the resultant air leak and inconsistent low speed running/tickover. Well, it gives me something to do while the carbs are away!
Anyone experienced this before? Manifolds appear to be cast alloy, with a some sort of composite spacer between them and the heads. Hopefully, they will weld ok …
 

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Common as muck.

You will most probably find all stubs to be warped; done up far too tight, compressing the insulation spacer and ultimately snapping.

Remove the o-rings from the stubs and place their sealing surace on a flat surface, should be no wobble. Slightly distorted stubs can be dressed on a lathe.

New stubs, new spacers (with o-rings!!!), correct torque on the nuts...

piet
 
Red can get you sorted with new ones, milled out of a more solid material. Customs is though a problem over here when goods come from Australia, but they are really worth any cent you spend on them...
 
sfcpiet said:
Common as muck.

You will most probably find all stubs to be warped; done up far too tight, compressing the insulation spacer and ultimately snapping.

Remove the o-rings from the stubs and place their sealing surace on a flat surface, should be no wobble. Slightly distorted stubs can be dressed on a lathe.

New stubs, new spacers (with o-rings!!!), correct torque on the nuts...

piet
Click to expand...
I suspected as much Piet. Thanks for the insight
 
Laverdalothar said:
Red can get you sorted with new ones, milled out of a more solid material. Customs is though a problem over here when goods come from Australia, but they are really worth any cent you spend on them...
Click to expand...
Thanks. Yes, they always seem to clobber you for import tax don’t they.
 
you can buy them from Elegog on ebay UK. I have found that they need "finishing" (for the clip on ones, not the rubber mount ones) as the dimension are just a tad too tight (maybe he has a very cold workshop) and needed a bit of relief, nothing more than a spin on a lathe and rub with some 600 grit, maybe 3 or 4 thou. I dont see the need for a heatproof spacer, if they are mounted with rubber tubes and four jubillee clips, I dont use them anyway, but is this needed? a tad hard to see if yours is clip on type with a plastic sleeve in the carb throat (very easy to crack the bodies of those carbs) or the Jota 120 type with rubber tubes


CLEM
 
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