Hard start problems
HEY guys new to the forums, I have a 2007 gsxr 750. The bike runs great, it just doesn’t want to start normally. It will crank for 10 seconds then backfire and eventually start.
This is what has been done so far.
Valve adjustment, four valves were tight and they were adjusted.
The TPS was set
Fuel pressure was tested
Compression test was good
Cmp code was on, but the sensor was removed and tested ok
Repaired pin #29 on ecm
Plugs are new
The bike runs perfect and doesn’t hiccup at all. Revs fine, low speed performance is good. Will pull all the way to redline.
It has a TRE in it, but was removed and our back to stock to no avail.
I was told by this shop which is Motorsports nation in Waterford ct, which is a certified Suzuki dealership with master techs, that they have no idea what is wrong. They told me it could be a bad ecm. That is a $1300 dollar gamble.
Any good advice where I should go from here? I want them to contact Suzuki and see what they say. One of the techs went so far as saying just get out of the bike before I spend too much on it. I’m not willing to give up that easy.