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 Topic: NSR250 MC18 R5K Engine Rebuild 







philup_7@hotmail.com

 
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philup_7@hotmail.com » Mon Mar 30, 2026 10:36 pm

Carb Manifold/Insulator Installation
Applied a little Blue Hylomar on the Reed Valve Gasket and placed it on the mating surface followed by the Reed Valves and Stuffers.




The Manifold/Insulator had previously been checked for any Cracks, Perishing, Splits and Warping (warping was checked with a straight edge across the mating surface held against the light), and although it looked good I’m afraid I succumbed & applied a little bit of HONDA Threebond to the mating surface for good measure.
Fitting the Manifold/Insulator I paid very careful attention to its tightening sequence, starting by hand and then gradually tighten up bolts to 5 lb/ft, 60 lb/in in several stages (didn't want to warp it).
Note: Made sure the longer 32mm Bolts went on the outer Edges of the Insulator, tightening sequence number Bolts 5-8.


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