08-04-16, 12:58 AM
Nick,
Check the Vacuum take off caps, they crack over time from age and are often the source of poor running low down of slow starting when very cold, the reason many do not think of them as a problem is because as vacuum increase it sucks them together and it feels fine at higher revs. I have had to replace them on numerous older Yams over the years. If you do need to go the replacement option go for 4 new ones as they are only about £12 to £15 for the 4.
The other cause may be due to a intermittent fault with the TPS again not to uncommon, (track wear within the unit), but will eventually throw up a 3k fault. This happened on my own one and me some time to figure out the problem and was a trial and error testing different items and it was when I tested the TPS it was on its way out, but it finally threw up the 3K fault the week I got a replacement. I bought a Suzuki on which is half the price of the Yam one, but needs 2 wires swapped to get it to work on the Fazer 1000. I post a "How to modify" in the downloads section and it takes about 5 minutes to do.
Check the Vacuum take off caps, they crack over time from age and are often the source of poor running low down of slow starting when very cold, the reason many do not think of them as a problem is because as vacuum increase it sucks them together and it feels fine at higher revs. I have had to replace them on numerous older Yams over the years. If you do need to go the replacement option go for 4 new ones as they are only about £12 to £15 for the 4.
The other cause may be due to a intermittent fault with the TPS again not to uncommon, (track wear within the unit), but will eventually throw up a 3k fault. This happened on my own one and me some time to figure out the problem and was a trial and error testing different items and it was when I tested the TPS it was on its way out, but it finally threw up the 3K fault the week I got a replacement. I bought a Suzuki on which is half the price of the Yam one, but needs 2 wires swapped to get it to work on the Fazer 1000. I post a "How to modify" in the downloads section and it takes about 5 minutes to do.