Misfire at 6000 rpm

[trotzki69]

Hi
Just been out for my first ride on my storm just had full service plugs ,oil,air & oil filter .She started straight away sounding well Sat afternoon ready for a ride Sunday morning then when I went to her she tried to start then the battery gave up managed to start it with a boost charger and off I went for a short ride to see if it was charging .
Filled with fuel started sweet then noticed a small misfire at low revs say around 3000 rpm,then more of a serious misfire at 6000rpm .Checked pipe work could this be battery related?
Any help much appreciated
Cheers

[tony.mon]

Regulator rectifier is probably gone. Get a volt meter on the battery terminals; if under 13 volts or over 14.8 stop it and buy a new one- see the threads on reg/recs on this forum. Then hope you haven't killed your battery as well.

[trotzki69]

Cheers just ordered a regulator I've seen there prone to playing up !!

[sirch345]

Cheers just ordered a regulator I've seen there prone to playing up !!

Subject to checking the charging rate (as Tony says) first I hope, unless yours is the older un-finned type, then yes worth replacing even if it's not that,

Chris.

[trotzki69]

Cheers yes it's the unfinned reg which is fitted !! Willbe checking volt rate asap and will keep you informed!!

[Wicky]

[trotzki69]

Hello replaced regulator but still not pulling very well seams more like hitting a rev limiter at at 6000rpm totally confused checked carbs and pipework also voltage from battery any help please could the timing be out??

[lloydie]

Hello replaced regulator but still not pulling very well seams more like hitting a rev limiter at at 6000rpm totally confused checked carbs and pipework also voltage from battery any help please could the timing be out??

yep 180' out

[AMCQ46]

Hello replaced regulator but still not pulling very well seams more like hitting a rev limiter at at 6000rpm totally confused checked carbs and pipework also voltage from battery any help please could the timing be out??

yep 180' out

Note that lloydie is talking about Cam timing not ignition timing

[lloydie]

Hello replaced regulator but still not pulling very well seams more like hitting a rev limiter at at 6000rpm totally confused checked carbs and pipework also voltage from battery any help please could the timing be out??

yep 180' out

Note that lloydie is talking about Cam timing not ignition timing

no just talking bollox again

[tony.mon]

The cam timing can't go out all by itself, has the bike been fitted with new/replacement CCT's, or had the valve timing/clearances done, by any chance?

[trotzki69]

yes its had manual tensioner fitted before i purchased it !! is it a big job or can it be done at home?

[tony.mon]

AH, there's your problem. The numpty got the valve timing 180 degrees out.
It's easy to do, as there is a TDC for the front cylinder that occurs just after the TDC for the rear one, but you should ignore that one and rotate another (crank) 360 degrees before setting the front one. Schoolboy error, but easily fixed, and no damage will have been done.

Was it, by any chance, a main dealer?
If so, name and shame, and ask them to read this thread- they can call me for advice, if a bit confused..... LOL

[trotzki69]

Cheers i dont know only bought bike 3 wks ago got a good deal on bike he said carbs needed balancing !! do i need to remove the cam covers ect!! to reset cam timing?

[tony.mon]

Prob only the rear one.
See Sirch's thread in the workshop stickies.