does cold weather affect motor

Post by **steven2558** » Sun Dec 31, 2006 11:58 am

hi everyone
does anybody know if cold weather affects the little 400 motor
mine in summer was superb yet this winter spits and bogs @6000rpm just before all hell breaks loose!!!!
help or ideas would be much apprieciated??
by the way happy new year to all members!

RedexRobB · Post by **RedexRobB** » Sun Dec 31, 2006 12:14 pm

hi steven welcome to the forum!

Sounds like a flat spot, but for it to suddenly appear is a bit odd

Have you changed anything like the exhaust recently, or added a new air filter?

Post by **steven2558** » Sun Dec 31, 2006 12:21 pm

hi thanks for reply!!
no not done much really apart from havent used it hardly since summer,

oh just changed to a 14t sproc .... and a clean!!!
its also kept in a unheated garage ,can electrics condensate or somethin???
cheers

RedexRobB · Post by **RedexRobB** » Sun Dec 31, 2006 12:32 pm

If its been sat for that long then its might be gummed up carbs. The fuel crystalises and turns into a goo and blocks things up a bit.

My advice would be to run some Redex through a few times as thats great stuff for cleaning up carbs as well as the rest of the engine. Give that a go

Post by **masterofinsanity** » Sun Dec 31, 2006 12:42 pm

as robB says more than likely a fuel problem mate, could be worth dropping the float bowls off and cleaning them out.

Post by **steven2558** » Sun Dec 31, 2006 12:52 pm

thanks for your help ...think ill try the redex first ! as droppin the floats maybe a bit technical for me,im a builder and used to swingin sledges about!!!!

will let every body know the outcome..
if you see in wanted section carbs the redex didnt work and ive f**ked the carbs up trying to clean them(with a hammer ofcourse!!!!!!!!!!!!!!!!!! ha ha)
only jokin thanks for help...
als can a smaller fuel filter restrict the flow?? as the one on mine is alot bigger than a new one that ive bought??
cheers....

Post by **masterofinsanity** » Sun Dec 31, 2006 4:23 pm

steven2558 wrote:
im a builder and used to swingin sledges about!!!!

what do you build? igloos?

Post by **steven2558** » Sun Dec 31, 2006 4:53 pm

very good!! left myself wide open for that one didnt i !!!!

Post by **steven2558** » Tue Jan 02, 2007 6:09 pm

hi
ran redex through today,after about 1/2 hour it seemed to make a massive differance(revving faster)
thanks for your help everybody!!

RedexRobB · Post by **RedexRobB** » Tue Jan 02, 2007 6:20 pm

Glad to hear it mate, has that flat spot cleared?

Just run that through, and see how it is after you put in petrol without the redex.

Post by **steven2558** » Tue Jan 02, 2007 10:00 pm

yep flat spot seems to of cleared!!
revs better but noisier though the exhaust!!!
(or that could be me imagining things????)
thanks again.........

Post by **steven2558** » Fri Jan 05, 2007 7:12 pm

give it another run today after refuelling,and an airfilter,
its superurb now no problems(touch wood)
revs cleanly right through to redline with no hiccups!!!
cheers for your help everybody