Hi all I'm a newbie just wondered if I can get some advise, my is200 temperature gauge will drop to zero while engine is warming up so the revs pick up to about 2 tho then a few seconds later the temp gauge goes up and the revs drop down, it's not too much of a problem while driving but on tick over its embarassing as it seems it's got a mind of its own, and it won't start if the temp gauge has dropped and the engine is warm as it thinks it's starting from cold. Any advise would be welcome thanks