Also bad plug wires (Broken ends at the plug caps) can make it feel this way. Ski runs fine on flats, but when you jump, the wires start moving and they lose conductivity.
my BJ44's have been spot on since the day Art sent them to me. Just one small adjustment and never had to mess with them over the past 6-7 years!!!!!! They came prejetted..... Spot on! Upgraded motors and he just sup bump up the main jet (Low). Same thing, spot on.
No kidding!!!!!!!!!!!!! Sometimes it takes a bit to fish them out, few weeks ago I found one, Gave them the boot, then found them on FB asking same question, they were not a BOT.......
hard to say without removing the bell insert and looking if there any difference in fuel map around the bell to get to the annular discharge ports. Just know back in the 90's alot of people ran them.......... I ran some SRE's which were real similar. They ran good, Just could not get...
https://www.x-h2o.com/threads/4-stroke-sj-impeller-change-tips-to-free-the-pump-casing-from-the-rear-of-the-shoe.209377/#post-2145387
This the first thread on this I have seen, so adding it here.
Its a safety issue first and foremost. Besides that, I raced my SJ in 2003 with Footholds, It actually made my riding worse. You use the sides of the tray for leverage, when you move your foot farther out it messed up the balance........... Honestly, The SJ in the right hands is...
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