NSR momentary seize?

[skatefreak]

Hey all,
i was in quiet a hurry this morning, very strong headwind so only getting 75-80 going up a duel carridgeway, i have had this feeling that the bike is down on power lately but was putting it down to my imagination (i've been riding like a lady man a lot to save on fuel!) and then at about 75 i felt a very short but sharp kind of judder from the frame almost instantaniously followed by a kind on bump feeling from the back wheel and all was fine again...

Asside from feeling a little down on power the bike seems happy, starts and smokes as per usual.

I have a pretty clean spare top end and am wondering if it would be worth doing a swap and have a gander at the internals (have been thinking about an engine swap for a while to see how well the spare engine runs anywho...).

Nothing unusual about today asside pushing the bike pretty hard for about 10 minutes prior (a good 5+ mins on slow roads to warm up the top end)

Any thoughts would be much appreciated.

Best regards

-Jvr

PS, plenty of fully synthetic 2 smoke oil in the tank to

[Robby]

It may have nipped up, but obviously not too badly if it instantly freed up and felt fine afterwards. It could have just been a misfire.

Seeing as you have a spare top end, and its summer, I would ignore it for now and see if it does it again. Pull the top end in winter if you want to have a look.

If you've been riding it very gently then it will coke up, which explains it being down on power. Thrashing will fix this.

[skatefreak]

yep, that all makes sense...
but as i have a couple of days off which is pretty rare i think i'm going to tear off the top end and have a look see, clean out the carb, sort that damn centrifual starter cog and have a general poke around as its been a long while since she had any attention...

Have done a couple of trips this arvo, engine seemed pretty okay but either its really really windy out there or shes down on power :/

Will see what turns up.

cheers

-Jvr