Occasionnal loss of power

Message

beerbaron · #1 Unread post by **beerbaron** » Thu Sep 22, 2005 3:29 am

Here is my problem, ocasionnally, my engine seems to have low power passed 5000 RPM. It does not happen often, but it does happen, the engine starts to make a loud noise. When it happens it's not very long, like a minute.

It happens even when my gas tank is full and it seems to happen more frequently when the bike is climbing or declimbing.

Anybody has any idea?

BeerBaron

flynrider · #2 Unread post by **flynrider** » Thu Sep 22, 2005 9:10 am

What kind of bike is it? What does the loud noise sound like (mechanical, exhaust, etc...)? Will it accellerate beyond 5000 rpm, or does it drop back down?

BuzZz · #3 Unread post by **BuzZz** » Thu Sep 22, 2005 10:09 pm

'declimbing'..... good one

Is it possible your momentarly getting the engine very hot(working hard) and sticking a valve open?

beerbaron · #4 Unread post by **beerbaron** » Sat Sep 24, 2005 5:09 am

It's a loud exhaust sound, like the engine needs some air, gas or something like that.

It would be possible that a valve keeps open, haven't adjusted my valves since I bought it.

Is it possible to buy some products to clear the valves just in case something is stuck there?

BeerBaron

beerbaron · #5 Unread post by **beerbaron** » Mon Oct 10, 2005 8:35 am

For the info of further readers.

Found 2 problems... dam I hate when 2 problems add up.

1st - The vacuum pipe that was putting pressure in the gas tank had an hole, so fewer gas was going to the carbs.

2nd - Spark plug #3 wasn't firing correctly, might be spark plug connector or wire.

BeerBaron