Originally Posted by
herb99
I had a similar problem with my 28xz with the 21J carb.
The LSN was as screwed all the way in and it was still too rich on the low end. It would bog down on take off, top end was fine.
I ended up putting a new carby on it and it fixed the problems.
I had so many issuses with that engine, I eventually gave up on it.
I gave up on mine back in august and bought an MRT GRP .21 and never looked back, the GRP has run perfect for 5-6 gals straight and only needs new bearings because they are becoming a little sloppy and causing quick clutch wear and the O.s is only in there until that happens.
TY very much for the info jpalessi will definitely give that a try tomorrow.
I don't see the reason for 3 needle carbs, my grp tunes perfectly with a two needle...