Is it just me?

[AlanJ]

Hi,
Sorry I am a bit late in posting a reply, but what you are suggesting after 4500 sounds like 4 stroking. I don't know how that can be at those revs but that's what it sounds like.
.
Wish you well Alan

[Puffs]

Following a biased and flawed moderator choice (someone posting aggressive personal attacks is rewarded, while my technical posts are removed - behind my back & without any justification!), I have withdrawn from this forum.

[breakwellmz]

Hi,
Sorry I am a bit late in posting a reply, but what you are suggesting after 4500 sounds like 4 stroking. I don't know how that can be at those revs but that's what it sounds like.
.
Wish you well Alan

Maximum power is at about 5,000 on the Jawa.
Perhaps it`s running rich. What do the plugs look like, are the silencers gummed up, clean air filter?

[Puffs]

Following a biased and flawed moderator choice (someone posting aggressive personal attacks is rewarded, while my technical posts are removed - behind my back & without any justification!), I have withdrawn from this forum.

[Puffs]

Following a biased and flawed moderator choice (someone posting aggressive personal attacks is rewarded, while my technical posts are removed - behind my back & without any justification!), I have withdrawn from this forum.

[AlanJ]

Hi Puffs,
The new avatar is with both my originals ie, Saxon and TS 250/1. The new Saxon is awaiting an MOT
when it gets a wee bit warmer. Anyway, I will take this opportunity of wishing you all a better new year than this one
hopefully virus-free, the world needs it.
Stay safe Alan.