# Need Help rb25 trigger 36-2 **URL:** \ **Category:** EMU BLACK / CLASSIC\ **Created:** [October 17, 2025, 5:32am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589 "2025-10-17T05:32:48Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![chel](https://avatars.discourse-cdn.com/v4/letter/c/6bbea6/32.png) [@chel](https://community.ecumaster.com/u/chel)\ **Post date:** [October 17, 2025, 5:32am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/1 "2025-10-17T05:32:49Z")
I have a trigger kit installed 36-2 in place of the CAS. I’m trying to understand the logic of the technician who did this for me, why it’s like this. I think something’s wrong here. Why is the first tooth 41, if there are only 36? In the manual, the trigger needs the first toothe 11. Everything starts up, but you have to turn the starter for a long time. If you specify other settings, it stops starting. ![dfhdhdfh](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/1/19206378f8cfe896ac06496f5fbc80485b28c27f.png) ![IMG_6725](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/6/6001cf8a70d8476b55ac363a0887510e38e7222b.jpeg) ![ON6v-Mu5hKGQZGRTIxQ0oOsnigxO9j09sIq-SRkCvfEVNMjc0GI5LGAKPulIHfjUPpag3YkrNZTDu-j47_CayVTG](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/1/19f43474588820f739bf15c00482e7a22980649c.jpeg) ---
**Author:** ![Romjer](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@Romjer](https://community.ecumaster.com/u/Romjer)\ **Post date:** [October 17, 2025, 6:27am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/2 "2025-10-17T06:27:02Z")
![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/e/e98aafbe2a02654f3b1d98f422e577341fab95d4.png) if in foto trigger in TDC of engine? in is very BAD ![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/8/8060e3b1a54f520879af72f021bd04926f56d1fe.jpeg) need to fake settings, to have trigger angle not zero try set tooth = 5 and angle 50… and then recheck timings with timing light. and properly set IGN-Coils-Ign Output- Output offset (need to be zero) ---
**Author:** ![chel](https://avatars.discourse-cdn.com/v4/letter/c/6bbea6/32.png) [@chel](https://community.ecumaster.com/u/chel)\ **Post date:** [October 17, 2025, 7:17am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/3 "2025-10-17T07:17:11Z")
We tried 5 and 50, it won’t start at all. but it’s synchronized. ---
**Author:** ![Romjer](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@Romjer](https://community.ecumaster.com/u/Romjer)\ **Post date:** [October 17, 2025, 7:19am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/4 "2025-10-17T07:19:20Z")
wht set in IGN-Coils-Ign Output- Output offset when tooth = 41 and whjat you set when set tooth = 5 and on photo - 1 cyl in TDC ? or some other? ---
**Author:** ![chel](https://avatars.discourse-cdn.com/v4/letter/c/6bbea6/32.png) [@chel](https://community.ecumaster.com/u/chel)\ **Post date:** [October 17, 2025, 8:21am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/5 "2025-10-17T08:21:20Z")
why does the link work without problems with this trigger? ![IMG_6732](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/4/40fc362cae743dd4bc6f4fdafe4c5582c76d5aaa.jpeg) ---
**Author:** ![Romjer](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@Romjer](https://community.ecumaster.com/u/Romjer)\ **Post date:** [October 17, 2025, 8:42am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/6 "2025-10-17T08:42:24Z")
becourse properly wrotten in software. properly set itup in black an it must works ---
**Author:** ![chel](https://avatars.discourse-cdn.com/v4/letter/c/6bbea6/32.png) [@chel](https://community.ecumaster.com/u/chel)\ **Post date:** [October 17, 2025, 9:09am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/7 "2025-10-17T09:09:41Z")
![Screenshot_1](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/1/1603debd60f7144d4393fbc9bebed6ea51558fc4.png) ---
**Author:** ![Romjer](https://avatars.discourse-cdn.com/v4/letter/r/aca169/32.png) [@Romjer](https://community.ecumaster.com/u/Romjer)\ **Post date:** [October 17, 2025, 10:14am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/8 "2025-10-17T10:14:09Z")
it is when tooth = 41 ? and it works. if You changes first tooth to 41-36 (full crank back) = 5, you must change firing and squirting offset accrodingly (1 full crank back).. you can not set -2? but you can move it forward. 1-5-3-6-2-4 works when tooth = 41 move back you started from 2: 2-4-1-5-3-6 \*\*you need set offset to 4 and check timing first! not start engine. ensure what timing marks on cam and crank in proper positions if i good understand 21 point in \*\* > **[FAQ and Troubleshooting Document 12-22-21.docx](https://docs.google.com/document/d/1SHqzP2t78-HXax1nrq6h0EcUZdqopAzc/edit)** > > FAQ and Instructions for Troubleshooting, Diagnostics, and Tuning Press Ctrl+F to search for specific words in this document. Table of contents are clickable links. Table of contents: 1. Technical Feature (DBW) - DBW Calibration Tool information... ---
**Author:** ![chel](https://avatars.discourse-cdn.com/v4/letter/c/6bbea6/32.png) [@chel](https://community.ecumaster.com/u/chel)\ **Post date:** [October 17, 2025, 10:23am UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/9 "2025-10-17T10:23:52Z")
yes trigger 36-2 and first trigger tooth 41 ---
**Author:** ![Jeroen\_dist\_NL\_BE](https://avatars.discourse-cdn.com/v4/letter/j/8e7dd6/32.png) [@Jeroen\_dist\_NL\_BE](https://community.ecumaster.com/u/Jeroen_dist_NL_BE)\ **Post date:** [October 17, 2025, 3:00pm UTC](https://community.ecumaster.com/t/need-help-rb25-trigger-36-2/4589/10 "2025-10-17T15:00:17Z")
> [@Romjer](#): > > perly set itup in black an it must works Dont gamble, use a strobe light to set it perfectly to TDC