More start-up issues
01-23-2011 | 06:35 PM
#1
Thread Starter
Joined: Mar 2008
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
From: Newmarket, Ontario CANADA
More start-up issues
Hi All,
I just bought a HSP nitro 1/8 scale monster truck a 21 size nitro. I want to do a break in so I was going about it the other weekend.
I didn't adjust the needles, I just primed it and pull started it and I started up relatively easily. I went through approx 2/3 of a tank totally so far.
It was not very stable at first, I was just trying to go to from a fast idle to 1/8-1/4 throttle intervals to get it running stable a bit. I did notice it got noticeably more stable and I didn't adjust the high speed needle much but was trying to adjust it "slightly" as it had a tendact to die or miss as I tried 1/2 throttle (maybe it was too lean). Since I didn't have a temp gauge, I would let it run for about 2 minutes intervals and would stop it afterwards as it looked to be getting a little hot. I have now already brushed up again on proper break-in procedure and have a temp gauge so break-in should be a wizz.
Yesterday I try to start it, all charged up .. glow heater ok, glow plug ok, try priming it and start pulling. Nothing ... It seems as though there was no ignition, or that it was not getting any fuel at all. It did get relatively cold in the garage since I started it last time.
Should I try to make it richer and / or somehow make sure it is properly or better primed ? Not that easy to get fuel as it has a air filter ty strapped on ..
Thanks
I just bought a HSP nitro 1/8 scale monster truck a 21 size nitro. I want to do a break in so I was going about it the other weekend.
I didn't adjust the needles, I just primed it and pull started it and I started up relatively easily. I went through approx 2/3 of a tank totally so far.
It was not very stable at first, I was just trying to go to from a fast idle to 1/8-1/4 throttle intervals to get it running stable a bit. I did notice it got noticeably more stable and I didn't adjust the high speed needle much but was trying to adjust it "slightly" as it had a tendact to die or miss as I tried 1/2 throttle (maybe it was too lean). Since I didn't have a temp gauge, I would let it run for about 2 minutes intervals and would stop it afterwards as it looked to be getting a little hot. I have now already brushed up again on proper break-in procedure and have a temp gauge so break-in should be a wizz.
Yesterday I try to start it, all charged up .. glow heater ok, glow plug ok, try priming it and start pulling. Nothing ... It seems as though there was no ignition, or that it was not getting any fuel at all. It did get relatively cold in the garage since I started it last time.
Should I try to make it richer and / or somehow make sure it is properly or better primed ? Not that easy to get fuel as it has a air filter ty strapped on ..
Thanks
01-23-2011 | 07:24 PM
#2
Senior Member
Joined: Sep 2010
Posts: 329
Likes: 0
Received 0 Likes
on
0 Posts
From: Gilber,
AZ
RE: More start-up issues
I suspect a tuning issue so 1st thing 1st set all needles back to factory and start over. Also swap the glow plug as if you are starting with a new engine. This is my best advise
01-31-2011 | 01:10 AM
#3
Thread Starter
Joined: Mar 2008
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
From: Newmarket, Ontario CANADA
RE: More start-up issues
Went back to stock on HS (haven't touched LS yet). Stock is 2.5 turns out, curtousy of an old thread.
Pulled the air filter so I could a little more what was going on. Then got it running today and made a few break in runs in the nearby street. Still a little rich, a bit too much white smoke and temp didn't get near 200 F yet.
Progress .... Ahhh
Pulled the air filter so I could a little more what was going on. Then got it running today and made a few break in runs in the nearby street. Still a little rich, a bit too much white smoke and temp didn't get near 200 F yet.
Progress .... Ahhh
01-31-2011 | 03:55 AM
#4
Senior Member
Joined: Oct 2010
Posts: 110
Likes: 0
Received 0 Likes
on
0 Posts
From: mackay, AUSTRALIA
RE: More start-up issues
Replace the glow plug, run-in is rich and can burn plugs out fast, it also sounds like you tuned it to early sending it lean, bad idea, leave it factory set for a few tanks and run it in, a lean run-in will make tuning and idleing a butache forever.Set it back to factory and put up with the stalls from being rich, run it in then tuned for speed.Always clean air filter after every run when running in.
